Historical weather forecast in Niihau in September 2021
Weather rating: 4/4 - Very favorable
Access the daily history of weather forecasts in Niihau in September 2021, with the monthly averages and day-by-day details.
Weather summary for the month of September 2021 in Niihau
Find the main data from the archived weather forecasts in Niihau for September 2021.
What was the weather like that month?
The archived weather forecasts in Niihau in September 2021 predicted a month forecast to be rather warm, with average highs of 27.6°C, lows of 24.3°C and an average temperature of 25.9°C. The month was expected to be dry, with about 4.8 mm of accumulated rain. 1 days were forecast to have measurable precipitation. The most frequently reported type of weather at midday was Partly Cloudy, accounting for about 96.7% of the days. On average, forecasts predicted about 24.3°C around 6 AM, 27.5°C around noon and 25.3°C around 6 PM. The hottest day reported reached 29.0°C on 2 of the month. The highest forecasted daily rainfall accumulation reached 1.0 mm on 11 of the month.
Max temp
27.6°C
Min temp
24.3°C
Avg. Temp
25.9°C
Rain
4.8 mm
Dominant weather conditions in September 2021
Compare the most frequently forecast weather conditions in Niihau, Hawaii over the month of September 2021 for the 6:00, 12:00 and 18:00 slots.
From 1er to 30 September 2021
6h
Main weather condition
Partly Cloudy
27 days (90%)
24.3°C
Other common conditions
Clear/Sunny
24.0°C
2 days (6.7%)
Patchy rain nearby
24.0°C
1 days (3.3%)
12h
Main weather condition
Partly Cloudy
29 days (96.7%)
27.5°C
Other common conditions
Patchy rain nearby
26.0°C
1 days (3.3%)
18h
Main weather condition
Partly Cloudy
20 days (66.7%)
25.6°C
Other common conditions
Patchy rain nearby
24.6°C
7 days (23.3%)
Clear/Sunny
26.0°C
2 days (6.7%)
Light rain shower
24.0°C
1 days (3.3%)
From 1er to 10 September 2021
6h
Main weather condition
Partly Cloudy
9 days (90%)
24.3°C
Other common conditions
Clear/Sunny
24.0°C
1 days (10%)
12h
Main weather condition
Partly Cloudy
10 days (100%)
27.4°C
18h
Main weather condition
Partly Cloudy
6 days (60%)
25.7°C
Other common conditions
Patchy rain nearby
24.0°C
3 days (30%)
Clear/Sunny
26.0°C
1 days (10%)
From 11 to 20 September 2021
6h
Main weather condition
Partly Cloudy
9 days (90%)
24.4°C
Other common conditions
Clear/Sunny
24.0°C
1 days (10%)
12h
Main weather condition
Partly Cloudy
9 days (90%)
27.1°C
Other common conditions
Patchy rain nearby
26.0°C
1 days (10%)
18h
Main weather condition
Partly Cloudy
8 days (80%)
25.9°C
Other common conditions
Light rain shower
24.0°C
1 days (10%)
Patchy rain nearby
26.0°C
1 days (10%)
From 21 to 30 September 2021
6h
Main weather condition
Partly Cloudy
9 days (90%)
24.2°C
Other common conditions
Patchy rain nearby
24.0°C
1 days (10%)
12h
Main weather condition
Partly Cloudy
10 days (100%)
28.0°C
18h
Main weather condition
Partly Cloudy
6 days (60%)
25.0°C
Other common conditions
Patchy rain nearby
24.7°C
3 days (30%)
Clear/Sunny
26.0°C
1 days (10%)
Weather calendar in Niihau in September 2021
Find the daily details of archived weather forecasts in Niihau for September 2021, including temperatures, rain, wind and humidity.
| DayDay | WeatherWeather | Max tempMax temp | Min tempMin temp | PrecipitationPrecipitation | RatingWeather rating: | WindWind | HumidityHumidity | HistoryHistory | DetailsDetails |
|---|---|---|---|---|---|---|---|---|---|
| 01 Sep. |
Partly Cloudy |
27.0°C | 24.0°C | 0.6 mm | 4/4 | 9.0 km/h | 77% | ||
| 02 Sep. |
Partly Cloudy |
29.0°C | 24.0°C | 0.0 mm | 4/4 | 11.0 km/h | 77% | ||
| 03 Sep. |
Partly Cloudy |
29.0°C | 25.0°C | 0.0 mm | 4/4 | 19.0 km/h | 77% | ||
| 04 Sep. |
Partly Cloudy |
29.0°C | 25.0°C | 0.0 mm | 4/4 | 11.0 km/h | 74% | ||
| 05 Sep. |
Partly Cloudy |
27.0°C | 24.0°C | 0.2 mm | 4/4 | 12.0 km/h | 74% | ||
| 06 Sep. |
Partly Cloudy |
26.0°C | 24.0°C | 0.3 mm | 4/4 | 8.0 km/h | 76% | ||
| 07 Sep. |
Partly Cloudy |
28.0°C | 24.0°C | 0.0 mm | 4/4 | 7.0 km/h | 75% | ||
| 08 Sep. |
Partly Cloudy |
27.0°C | 24.0°C | 0.0 mm | 4/4 | 9.0 km/h | 77% | ||
| 09 Sep. |
Partly Cloudy |
28.0°C | 24.0°C | 0.0 mm | 4/4 | 9.0 km/h | 74% | ||
| 10 Sep. |
Partly Cloudy |
26.0°C | 25.0°C | 0.0 mm | 4/4 | 10.0 km/h | 76% | ||
| 11 Sep. |
Partly Cloudy |
26.0°C | 24.0°C | 1.0 mm | 4/4 | 9.0 km/h | 76% | ||
| 12 Sep. |
Partly Cloudy |
28.0°C | 25.0°C | 0.0 mm | 4/4 | 11.0 km/h | 77% | ||
| 13 Sep. |
Partly Cloudy |
28.0°C | 24.0°C | 0.2 mm | 4/4 | 10.0 km/h | 74% | ||
| 14 Sep. |
Partly Cloudy |
26.0°C | 24.0°C | 0.3 mm | 4/4 | 13.0 km/h | 75% | ||
| 15 Sep. |
Patchy rain nearby |
26.0°C | 24.0°C | 0.8 mm | 3/4 | 10.0 km/h | 74% | ||
| 16 Sep. |
Partly Cloudy |
29.0°C | 24.0°C | 0.1 mm | 4/4 | 8.0 km/h | 75% | ||
| 17 Sep. |
Partly Cloudy |
27.0°C | 25.0°C | 0.0 mm | 4/4 | 12.0 km/h | 78% | ||
| 18 Sep. |
Partly Cloudy |
27.0°C | 25.0°C | 0.1 mm | 4/4 | 15.0 km/h | 73% | ||
| 19 Sep. |
Partly Cloudy |
27.0°C | 24.0°C | 0.2 mm | 4/4 | 13.0 km/h | 75% | ||
| 20 Sep. |
Partly Cloudy |
27.0°C | 25.0°C | 0.0 mm | 4/4 | 10.0 km/h | 73% | ||
| 21 Sep. |
Partly Cloudy |
29.0°C | 25.0°C | 0.0 mm | 4/4 | 15.0 km/h | 77% | ||
| 22 Sep. |
Partly Cloudy |
28.0°C | 24.0°C | 0.0 mm | 4/4 | 15.0 km/h | 72% | ||
| 23 Sep. |
Partly Cloudy |
28.0°C | 24.0°C | 0.0 mm | 4/4 | 11.0 km/h | 71% | ||
| 24 Sep. |
Partly Cloudy |
27.0°C | 24.0°C | 0.4 mm | 4/4 | 10.0 km/h | 77% | ||
| 25 Sep. |
Partly Cloudy |
28.0°C | 24.0°C | 0.2 mm | 4/4 | 13.0 km/h | 78% | ||
| 26 Sep. |
Partly Cloudy |
28.0°C | 24.0°C | 0.0 mm | 4/4 | 9.0 km/h | 77% | ||
| 27 Sep. |
Partly Cloudy |
28.0°C | 25.0°C | 0.1 mm | 4/4 | 12.0 km/h | 77% | ||
| 28 Sep. |
Partly Cloudy |
28.0°C | 24.0°C | 0.0 mm | 4/4 | 13.0 km/h | 75% | ||
| 29 Sep. |
Partly Cloudy |
28.0°C | 24.0°C | 0.2 mm | 4/4 | 12.0 km/h | 75% | ||
| 30 Sep. |
Partly Cloudy |
28.0°C | 24.0°C | 0.1 mm | 4/4 | 8.0 km/h | 77% |
Compare the weather for September 2021 in Niihau with other months in the archives
Compare the main data from archived weather forecasts in Niihau for September 2021 with one previous month and one following month among all available archives, to more easily spot differences in temperature, rain, wind and brightness.
| Data type | August 2021 | September 2021 | October 2021 | ||
|---|---|---|---|---|---|
| Average temperature | 25.5°C | 25.9°C | 25.1°C | ||
| Maximum temperature | 26.4°C | 27.6°C | 26.8°C | ||
| Minimum temperature | 24.1°C | 24.3°C | 23.6°C | ||
| Highest maximum temperature | 29.0°C | 29.0°C | 29.0°C | ||
| Highest minimum temperature | 25.0°C | 25.0°C | 25.0°C | ||
| Lowest minimum temperature | 20.0°C | 24.0°C | 23.0°C | ||
| Wind speed | 11 km/h | 11 km/h | 13 km/h | ||
| Wind temperature | 24.2°C | 24.3°C | 23.6°C | ||
| Average precipitation per day | 0.6 mm | 0.2 mm | 0.1 mm | ||
| Record rainfall in one day | 4.8 mm | 1.0 mm | 0.8 mm | ||
| Total precipitation over the month | 18.7 mm | 4.8 mm | 4.0 mm | ||
| Number of days with precipitation | 8 | 1 | 0 | ||
| Humidity | 74% | 75% | 77% | ||
| Visibility | 9.9 km | 10.0 km | 10.0 km | ||
| Cloud cover | 30% | 19% | 20% | ||
| Heat index | 28 | 30 | 29 | ||
| Dew point | 20.1°C | 20.8°C | 20.3°C | ||
| Pressure | 1,018 hPa | 1,018 hPa | 1,018 hPa | ||
| Sunrise time | 06:18:46 | 06:27:44 | 06:37:33 | ||
| Sunset time | 19:10:06 | 18:42:34 | 18:15:00 | ||
| Day length | 12:51 | 12:14 | 11:37 |
Average temperature
September 2021
25.9°C
August 2021
25.5°C
October 2021
25.1°C
Maximum temperature
September 2021
27.6°C
August 2021
26.4°C
October 2021
26.8°C
Minimum temperature
September 2021
24.3°C
August 2021
24.1°C
October 2021
23.6°C
Highest maximum temperature
September 2021
29.0°C
August 2021
29.0°C
October 2021
29.0°C
Highest minimum temperature
September 2021
25.0°C
August 2021
25.0°C
October 2021
25.0°C
Lowest minimum temperature
September 2021
24.0°C
August 2021
20.0°C
October 2021
23.0°C
Wind speed
September 2021
11 km/h
August 2021
11 km/h
October 2021
13 km/h
Wind temperature
September 2021
24.3°C
August 2021
24.2°C
October 2021
23.6°C
Average precipitation per day
September 2021
0.2 mm
August 2021
0.6 mm
October 2021
0.1 mm
Record rainfall in one day
September 2021
1.0 mm
August 2021
4.8 mm
October 2021
0.8 mm
Total precipitation over the month
September 2021
4.8 mm
August 2021
18.7 mm
October 2021
4.0 mm
Number of days with precipitation
September 2021
1
August 2021
8
October 2021
0
Humidity
September 2021
75%
August 2021
74%
October 2021
77%
Visibility
September 2021
10.0 km
August 2021
9.9 km
October 2021
10.0 km
Cloud cover
September 2021
19%
August 2021
30%
October 2021
20%
Heat index
September 2021
30
August 2021
28
October 2021
29
Dew point
September 2021
20.8°C
August 2021
20.1°C
October 2021
20.3°C
Pressure
September 2021
1,018 hPa
August 2021
1,018 hPa
October 2021
1,018 hPa
Sunrise time
September 2021
06:27:44
August 2021
06:18:46
October 2021
06:37:33
Sunset time
September 2021
18:42:34
August 2021
19:10:06
October 2021
18:15:00
Day length
September 2021
12:14
August 2021
12:51
October 2021
11:37
Nearby of Niihau
Find on the map and in the list the towns closest to of Niihau to view the archived weather forecast history for the same period.