Long-term weather trends in Sampit: 30-day, 3-month and 12-month forecasts
Weather trend
Based on 18 years of archives
Calculated on 6 September 2026
Find long-term weather in Sampit, Indonesian Borneo (Kalimantan), with a 30-day trend, for the next 3 months and month-by-month over 12 months, calculated from 18 years of weather archives.
30-day weather forecast in Sampit, Indonesian Borneo (Kalimantan)
This summary helps quickly identify the major weather trends for the coming month in Sampit, Indonesian Borneo (Kalimantan), before checking the day-by-day calendar below.
Average temperature
30.2°C
Likely rainy days / week
4.8 days
Dominant weather type
rainy
60%
To remember
The expected temperature remains close to the normals, around 30.2°C on average. The rain looks close to usual levels, with about 4.8 rainy days per week. The dominant scenario remains rainy, with about 60% recurrence and a average confidence.
These long-term predictions are calculated from 18 years of observed weather in Sampit. They allow identification of probable trends derived from historical data, and are not short-term weather forecasts.
30-day weather calendar in Sampit, day by day
For each date, find a likely temperature range, a risk of rain, and the most frequent weather type.
| Date | Temperatures | Rain | Dominant weather | History |
|---|---|---|---|---|
|
September 30, 2026
|
26°C /
34°C
Likely temperature:
29.0°C -
32.3°C
|
Risk of rain
61%
If rain:
light
|
rainy
52%
|
|
|
October 1, 2026
|
26°C /
34°C
Likely temperature:
28.8°C -
32.3°C
|
Risk of rain
62%
If rain:
light
|
rainy
52%
|
|
|
October 2, 2026
|
26°C /
34°C
Likely temperature:
28.8°C -
32.3°C
|
Risk of rain
63%
If rain:
light
|
rainy
53%
|
|
|
October 3, 2026
|
26°C /
34°C
Likely temperature:
28.8°C -
32.0°C
|
Risk of rain
64%
If rain:
light
|
rainy
53%
|
|
|
October 4, 2026
|
26°C /
34°C
Likely temperature:
28.8°C -
32.0°C
|
Risk of rain
64%
If rain:
light
|
rainy
54%
|
|
|
October 5, 2026
|
26°C /
34°C
Likely temperature:
28.8°C -
32.0°C
|
Risk of rain
64%
If rain:
light
|
rainy
56%
|
|
|
October 6, 2026
|
26°C /
34°C
Likely temperature:
28.8°C -
31.8°C
|
Risk of rain
64%
If rain:
light
|
rainy
57%
|
|
|
October 7, 2026
|
26°C /
34°C
Likely temperature:
28.8°C -
31.8°C
|
Risk of rain
64%
If rain:
light
|
rainy
58%
|
|
|
October 8, 2026
|
26°C /
34°C
Likely temperature:
28.8°C -
31.8°C
|
Risk of rain
63%
If rain:
light
|
rainy
59%
|
|
|
October 9, 2026
|
26°C /
34°C
Likely temperature:
28.8°C -
31.8°C
|
Risk of rain
62%
If rain:
light
|
rainy
60%
|
|
|
October 10, 2026
|
26°C /
34°C
Likely temperature:
28.8°C -
31.8°C
|
Risk of rain
62%
If rain:
light
|
rainy
60%
|
|
|
October 11, 2026
|
26°C /
34°C
Likely temperature:
28.8°C -
32.0°C
|
Risk of rain
62%
If rain:
light
|
rainy
59%
|
|
|
October 12, 2026
|
26°C /
34°C
Likely temperature:
29.0°C -
32.0°C
|
Risk of rain
62%
If rain:
light
|
rainy
59%
|
|
|
October 13, 2026
|
27°C /
34°C
Likely temperature:
29.0°C -
32.0°C
|
Risk of rain
63%
If rain:
light
|
rainy
59%
|
|
|
October 14, 2026
|
27°C /
34°C
Likely temperature:
29.0°C -
32.0°C
|
Risk of rain
64%
If rain:
light
|
rainy
59%
|
|
|
October 15, 2026
|
27°C /
34°C
Likely temperature:
29.0°C -
32.0°C
|
Risk of rain
66%
If rain:
light
|
rainy
60%
|
|
|
October 16, 2026
|
27°C /
34°C
Likely temperature:
29.0°C -
32.0°C
|
Risk of rain
68%
If rain:
light
|
rainy
61%
|
|
|
October 17, 2026
|
27°C /
34°C
Likely temperature:
29.0°C -
32.0°C
|
Risk of rain
70%
If rain:
moderate
|
rainy
62%
|
|
|
October 18, 2026
|
27°C /
34°C
Likely temperature:
29.0°C -
32.0°C
|
Risk of rain
72%
If rain:
moderate
|
rainy
62%
|
|
|
October 19, 2026
|
26°C /
34°C
Likely temperature:
29.0°C -
32.0°C
|
Risk of rain
73%
If rain:
moderate
|
rainy
64%
|
|
|
October 20, 2026
|
26°C /
34°C
Likely temperature:
28.8°C -
31.8°C
|
Risk of rain
74%
If rain:
moderate
|
rainy
64%
|
|
|
October 21, 2026
|
26°C /
34°C
Likely temperature:
28.8°C -
31.8°C
|
Risk of rain
74%
If rain:
moderate
|
rainy
65%
|
|
|
October 22, 2026
|
26°C /
34°C
Likely temperature:
28.8°C -
31.8°C
|
Risk of rain
75%
If rain:
moderate
|
rainy
65%
|
|
|
October 23, 2026
|
26°C /
34°C
Likely temperature:
28.5°C -
31.8°C
|
Risk of rain
75%
If rain:
moderate
|
rainy
64%
|
|
|
October 24, 2026
|
26°C /
33°C
Likely temperature:
28.8°C -
31.8°C
|
Risk of rain
75%
If rain:
moderate
|
rainy
65%
|
|
|
October 25, 2026
|
26°C /
33°C
Likely temperature:
28.8°C -
31.5°C
|
Risk of rain
75%
If rain:
moderate
|
rainy
65%
|
|
|
October 26, 2026
|
26°C /
33°C
Likely temperature:
28.8°C -
31.5°C
|
Risk of rain
75%
If rain:
moderate
|
rainy
65%
|
|
|
October 27, 2026
|
26°C /
33°C
Likely temperature:
28.8°C -
31.5°C
|
Risk of rain
76%
If rain:
moderate
|
rainy
64%
|
|
|
October 28, 2026
|
26°C /
33°C
Likely temperature:
28.8°C -
31.5°C
|
Risk of rain
76%
If rain:
moderate
|
rainy
64%
|
|
|
October 29, 2026
|
26°C /
33°C
Likely temperature:
28.8°C -
31.5°C
|
Risk of rain
77%
If rain:
moderate
|
rainy
65%
|
September 30, 2026
Temperatures
26°C /
34°C
Likely temperature:
29.0°C -
32.3°C
Rain
Risk of rain
61%
If rain:
light
Dominant weather
rainy
52%
October 1, 2026
Temperatures
26°C /
34°C
Likely temperature:
28.8°C -
32.3°C
Rain
Risk of rain
62%
If rain:
light
Dominant weather
rainy
52%
October 2, 2026
Temperatures
26°C /
34°C
Likely temperature:
28.8°C -
32.3°C
Rain
Risk of rain
63%
If rain:
light
Dominant weather
rainy
53%
October 3, 2026
Temperatures
26°C /
34°C
Likely temperature:
28.8°C -
32.0°C
Rain
Risk of rain
64%
If rain:
light
Dominant weather
rainy
53%
October 4, 2026
Temperatures
26°C /
34°C
Likely temperature:
28.8°C -
32.0°C
Rain
Risk of rain
64%
If rain:
light
Dominant weather
rainy
54%
October 5, 2026
Temperatures
26°C /
34°C
Likely temperature:
28.8°C -
32.0°C
Rain
Risk of rain
64%
If rain:
light
Dominant weather
rainy
56%
October 6, 2026
Temperatures
26°C /
34°C
Likely temperature:
28.8°C -
31.8°C
Rain
Risk of rain
64%
If rain:
light
Dominant weather
rainy
57%
October 7, 2026
Temperatures
26°C /
34°C
Likely temperature:
28.8°C -
31.8°C
Rain
Risk of rain
64%
If rain:
light
Dominant weather
rainy
58%
October 8, 2026
Temperatures
26°C /
34°C
Likely temperature:
28.8°C -
31.8°C
Rain
Risk of rain
63%
If rain:
light
Dominant weather
rainy
59%
October 9, 2026
Temperatures
26°C /
34°C
Likely temperature:
28.8°C -
31.8°C
Rain
Risk of rain
62%
If rain:
light
Dominant weather
rainy
60%
October 10, 2026
Temperatures
26°C /
34°C
Likely temperature:
28.8°C -
31.8°C
Rain
Risk of rain
62%
If rain:
light
Dominant weather
rainy
60%
October 11, 2026
Temperatures
26°C /
34°C
Likely temperature:
28.8°C -
32.0°C
Rain
Risk of rain
62%
If rain:
light
Dominant weather
rainy
59%
October 12, 2026
Temperatures
26°C /
34°C
Likely temperature:
29.0°C -
32.0°C
Rain
Risk of rain
62%
If rain:
light
Dominant weather
rainy
59%
October 13, 2026
Temperatures
27°C /
34°C
Likely temperature:
29.0°C -
32.0°C
Rain
Risk of rain
63%
If rain:
light
Dominant weather
rainy
59%
October 14, 2026
Temperatures
27°C /
34°C
Likely temperature:
29.0°C -
32.0°C
Rain
Risk of rain
64%
If rain:
light
Dominant weather
rainy
59%
October 15, 2026
Temperatures
27°C /
34°C
Likely temperature:
29.0°C -
32.0°C
Rain
Risk of rain
66%
If rain:
light
Dominant weather
rainy
60%
October 16, 2026
Temperatures
27°C /
34°C
Likely temperature:
29.0°C -
32.0°C
Rain
Risk of rain
68%
If rain:
light
Dominant weather
rainy
61%
October 17, 2026
Temperatures
27°C /
34°C
Likely temperature:
29.0°C -
32.0°C
Rain
Risk of rain
70%
If rain:
moderate
Dominant weather
rainy
62%
October 18, 2026
Temperatures
27°C /
34°C
Likely temperature:
29.0°C -
32.0°C
Rain
Risk of rain
72%
If rain:
moderate
Dominant weather
rainy
62%
October 19, 2026
Temperatures
26°C /
34°C
Likely temperature:
29.0°C -
32.0°C
Rain
Risk of rain
73%
If rain:
moderate
Dominant weather
rainy
64%
October 20, 2026
Temperatures
26°C /
34°C
Likely temperature:
28.8°C -
31.8°C
Rain
Risk of rain
74%
If rain:
moderate
Dominant weather
rainy
64%
October 21, 2026
Temperatures
26°C /
34°C
Likely temperature:
28.8°C -
31.8°C
Rain
Risk of rain
74%
If rain:
moderate
Dominant weather
rainy
65%
October 22, 2026
Temperatures
26°C /
34°C
Likely temperature:
28.8°C -
31.8°C
Rain
Risk of rain
75%
If rain:
moderate
Dominant weather
rainy
65%
October 23, 2026
Temperatures
26°C /
34°C
Likely temperature:
28.5°C -
31.8°C
Rain
Risk of rain
75%
If rain:
moderate
Dominant weather
rainy
64%
October 24, 2026
Temperatures
26°C /
33°C
Likely temperature:
28.8°C -
31.8°C
Rain
Risk of rain
75%
If rain:
moderate
Dominant weather
rainy
65%
October 25, 2026
Temperatures
26°C /
33°C
Likely temperature:
28.8°C -
31.5°C
Rain
Risk of rain
75%
If rain:
moderate
Dominant weather
rainy
65%
October 26, 2026
Temperatures
26°C /
33°C
Likely temperature:
28.8°C -
31.5°C
Rain
Risk of rain
75%
If rain:
moderate
Dominant weather
rainy
65%
October 27, 2026
Temperatures
26°C /
33°C
Likely temperature:
28.8°C -
31.5°C
Rain
Risk of rain
76%
If rain:
moderate
Dominant weather
rainy
64%
October 28, 2026
Temperatures
26°C /
33°C
Likely temperature:
28.8°C -
31.5°C
Rain
Risk of rain
76%
If rain:
moderate
Dominant weather
rainy
64%
October 29, 2026
Temperatures
26°C /
33°C
Likely temperature:
28.8°C -
31.5°C
Rain
Risk of rain
77%
If rain:
moderate
Dominant weather
rainy
65%
This 30-day weather forecast in Sampit allows you to quickly identify the mildest, wettest, or most changeable stretches in the coming month.
Week-by-week weather trend in Sampit over 10 weeks
The maps below follow the actual calendar weeks, from Monday to Sunday, to identify the most favorable periods in the coming weeks in Sampit.
Week 40
28 September - 4 October 2026
rainy
52%
clearings
27%
sunny
13%
cloudy
6%
Likely temperature
26°C / 34°C
Probable rain
4.3 days -
37 mm
Week 41
5 - 11 October 2026
rainy
58%
clearings
23%
sunny
12%
cloudy
5%
Likely temperature
26°C / 34°C
Probable rain
4.4 days -
48 mm
Week 42
12 - 18 October 2026
rainy
60%
clearings
20%
sunny
11%
cloudy
8%
Likely temperature
26°C / 34°C
Probable rain
4.7 days -
43 mm
Week 43
19 - 25 October 2026
rainy
64%
clearings
17%
sunny
10%
cloudy
9%
Likely temperature
26°C / 34°C
Probable rain
5.2 days -
47 mm
Week 44
26 October - 1 November 2026
rainy
65%
clearings
17%
cloudy
8%
sunny
7%
Likely temperature
26°C / 33°C
Probable rain
5.4 days -
53 mm
Week 45
2 - 8 November 2026
rainy
72%
clearings
19%
Likely temperature
26°C / 33°C
Probable rain
5.8 days -
63 mm
Week 46
9 - 15 November 2026
rainy
72%
clearings
20%
Likely temperature
25°C / 33°C
Probable rain
5.9 days -
66 mm
Week 47
16 - 22 November 2026
rainy
67%
clearings
20%
cloudy
8%
Likely temperature
25°C / 32°C
Probable rain
6.0 days -
59 mm
Week 48
23 - 29 November 2026
rainy
68%
clearings
18%
cloudy
9%
Likely temperature
25°C / 32°C
Probable rain
6.1 days -
57 mm
Week 49
30 November - 6 December 2026
rainy
63%
clearings
25%
cloudy
9%
Likely temperature
25°C / 32°C
Probable rain
5.9 days -
55 mm
3-month weather trend in Sampit
Temperatures, rain, sunshine and prevailing weather for the coming month and the following two months in Sampit, Indonesian Borneo (Kalimantan).
September 2026
rainy
47%
clearings
25%
sunny
16%
cloudy
9%
Likely temperature
26°C / 34°C
Average temperature
30.4°C
Probable rain
116 mm
Rainy days
17 days
Average sun/day
10.5 h
Average wind
9 km/h
Average humidity
84%
Cloud cover
40%
October 2026
rainy
61%
clearings
20%
sunny
11%
cloudy
7%
Likely temperature
27°C / 34°C
Average temperature
30.8°C
Probable rain
128 mm
Rainy days
22 days
Average sun/day
10.5 h
Average wind
7 km/h
Average humidity
82%
Cloud cover
42%
November 2026
rainy
70%
clearings
19%
cloudy
6%
Likely temperature
26°C / 33°C
Average temperature
29.9°C
Probable rain
277 mm
Rainy days
26 days
Average sun/day
9.8 h
Average wind
6 km/h
Average humidity
86%
Cloud cover
56%
This 3-month weather trend in Sampit helps anticipate the next month and the two following for a stay, a departure, or seasonal planning.
Month-by-month weather forecast in Sampit over 12 months
Easily compare over 1 year the likely weather for each upcoming month in Sampit, Indonesian Borneo (Kalimantan) to choose the best time based on heat, rain, or sunshine.
September 2026
rainy
47%
clearings
25%
sunny
16%
cloudy
9%
26°C
34°C
116 mm
17 days
average confidence
October 2026
rainy
61%
clearings
20%
sunny
11%
cloudy
7%
27°C
34°C
128 mm
22 days
average confidence
November 2026
rainy
70%
clearings
19%
cloudy
6%
26°C
33°C
277 mm
26 days
average confidence
December 2026
rainy
52%
clearings
29%
cloudy
15%
26°C
32°C
191 mm
25 days
average confidence
January 2027
rainy
44%
clearings
36%
cloudy
14%
25°C
32°C
145 mm
24 days
limited trust
February 2027
rainy
47%
clearings
33%
cloudy
13%
25°C
32°C
199 mm
22 days
average confidence
March 2027
rainy
47%
clearings
29%
cloudy
16%
25°C
32°C
163 mm
26 days
average confidence
April 2027
rainy
52%
clearings
29%
cloudy
11%
25°C
32°C
207 mm
24 days
average confidence
May 2027
rainy
53%
clearings
25%
cloudy
13%
sunny
5%
26°C
33°C
160 mm
24 days
average confidence
June 2027
rainy
54%
clearings
28%
cloudy
8%
sunny
6%
25°C
32°C
106 mm
20 days
average confidence
July 2027
rainy
49%
clearings
29%
cloudy
12%
sunny
8%
25°C
32°C
81 mm
16 days
average confidence
August 2027
rainy
51%
clearings
26%
cloudy
11%
sunny
10%
25°C
32°C
101 mm
16 days
average confidence
This 12-month weather calendar in Sampit makes it easy to compare the warmest, driest, or sunniest periods.
Compare these forecasts with the weather archives of Sampit
To go further, consult the city's detailed weather archives and the available years to compare these trends with past observations.
Long-term weather forecast around of Sampit
Find the towns near of Sampit on the map and compare their long-term weather forecasts to choose the most favorable area.
Long-term weather forecast calculation method in Sampit
These long-term weather trends in Sampit are estimated from 18 years of observed weather. They are mainly useful for identifying the most favorable periods and do not replace short-term weather forecasts.
Number of years of history
18
Comparison window
target day +/- 7 days
Update
daily
Output type
weather trend based on history
How are these trends calculated
Same period, year after year
For each future day, we look at the comparable dates observed over 18 years, with a rolling window of 15 days around the target day.
More weight to recent years
The most recent years are weighted slightly more to better reflect recent changes in weather conditions.
How to read the prevailing weather
The prevailing weather corresponds to the most frequent weather scenario over the displayed period. The percentage indicates its estimated share, and the other weather types shown in smaller size display the possible secondary scenarios, especially useful in weekly or monthly forecasts.
Months are calculated separately
Monthly trends are calculated directly from historical months to avoid artificial daily accumulations.
How to read confidence levels
The confidence score summarizes how much the model runs converge on a stable weather scenario for the displayed period.
high confidence
70 to 100
Past years tell a fairly coherent story: temperatures, rainfall and weather type vary little around the dominant scenario.
average confidence
45 to 69
A clear trend exists, but with greater year-to-year variations. The result should be read as a probable direction.
limited trust
0 to 44
The archives are more scattered over this period. The displayed scenario remains useful as a reference, but it should be interpreted with caution.
In practice, confidence is generally more robust over months than over weeks, because longer periods smooth out weather variability more.
Limits to keep in mind
- This is a long-term trend based on historical data, not an operational weather forecast for a few days.
- Exceptional or very localized episodes may deviate significantly from the most likely scenario.
- Monthly trends are generally more reliable for choosing a period, while day-by-day detail is mainly used to refine pinpointing.