Historical weather forecast in Hale'iwa in September 2021

Weather rating: 4/4 - Very favorable
Access the daily history of weather forecasts in Hale'iwa in September 2021, with the monthly averages and day-by-day details.
Long-term weather

Summary

Weather summary for the month of September 2021 in Hale'iwa

Find the main data from the archived weather forecasts in Hale'iwa for September 2021.

What was the weather like that month?

The archived weather forecasts in Hale'iwa in September 2021 predicted a month forecast to be rather warm, with average highs of 29.3°C, lows of 24.3°C and an average temperature of 26.8°C. The month was expected to be dry, with about 4.1 mm of accumulated rain. The most frequently reported type of weather at midday was Partly Cloudy, accounting for about 86.7% of the days. 15 days were forecast to have highs of at least 30°C. On average, forecasts predicted about 24.3°C around 6 AM, 28.8°C around noon and 26.0°C around 6 PM. The hottest day reported reached 31.0°C on 2 of the month. The highest forecasted daily rainfall accumulation reached 0.4 mm on 4 of the month.

Max temp
29.3°C
Min temp
24.3°C
Avg. Temp
26.8°C
Rain
4.1 mm

Dominant weather conditions in September 2021

Compare the most frequently forecast weather conditions in Hale'iwa, Hawaii over the month of September 2021 for the 6:00, 12:00 and 18:00 slots.

From 1er to 30 September 2021
From 1er to 10 September 2021
From 11 to 20 September 2021
From 21 to 30 September 2021

Weather calendar in Hale'iwa in September 2021

Find the daily details of archived weather forecasts in Hale'iwa 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
29.0°C 24.0°C 0.0 mm 4/4 9.0 km/h 79%
02 Sep.
Partly Cloudy
31.0°C 24.0°C 0.0 mm 4/4 20.0 km/h 79%
03 Sep.
Partly Cloudy
27.0°C 25.0°C 0.2 mm 3/4 32.0 km/h 75%
04 Sep.
Patchy rain nearby
29.0°C 24.0°C 0.4 mm 3/4 24.0 km/h 73%
05 Sep.
Partly Cloudy
28.0°C 24.0°C 0.1 mm 4/4 18.0 km/h 77%
06 Sep.
Partly Cloudy
30.0°C 24.0°C 0.0 mm 4/4 10.0 km/h 81%
07 Sep.
Partly Cloudy
30.0°C 24.0°C 0.0 mm 4/4 17.0 km/h 77%
08 Sep.
Partly Cloudy
29.0°C 24.0°C 0.0 mm 4/4 21.0 km/h 77%
09 Sep.
Clear/Sunny
30.0°C 24.0°C 0.0 mm 4/4 21.0 km/h 76%
10 Sep.
Partly Cloudy
29.0°C 24.0°C 0.4 mm 4/4 24.0 km/h 74%
11 Sep.
Partly Cloudy
30.0°C 24.0°C 0.0 mm 4/4 14.0 km/h 76%
12 Sep.
Partly Cloudy
29.0°C 25.0°C 0.2 mm 4/4 21.0 km/h 76%
13 Sep.
Partly Cloudy
30.0°C 25.0°C 0.2 mm 4/4 17.0 km/h 76%
14 Sep.
Partly Cloudy
30.0°C 25.0°C 0.2 mm 4/4 24.0 km/h 75%
15 Sep.
Partly Cloudy
28.0°C 24.0°C 0.4 mm 4/4 14.0 km/h 74%
16 Sep.
Partly Cloudy
28.0°C 25.0°C 0.2 mm 4/4 21.0 km/h 82%
17 Sep.
Partly Cloudy
29.0°C 25.0°C 0.2 mm 3/4 27.0 km/h 79%
18 Sep.
Partly Cloudy
30.0°C 25.0°C 0.0 mm 4/4 26.0 km/h 75%
19 Sep.
Partly Cloudy
30.0°C 24.0°C 0.2 mm 4/4 22.0 km/h 80%
20 Sep.
Patchy rain nearby
29.0°C 25.0°C 0.2 mm 3/4 21.0 km/h 77%
21 Sep.
Partly Cloudy
30.0°C 25.0°C 0.0 mm 4/4 25.0 km/h 74%
22 Sep.
Partly Cloudy
30.0°C 24.0°C 0.0 mm 4/4 24.0 km/h 73%
23 Sep.
Partly Cloudy
30.0°C 24.0°C 0.4 mm 3/4 25.0 km/h 78%
24 Sep.
Partly Cloudy
29.0°C 24.0°C 0.1 mm 4/4 22.0 km/h 81%
25 Sep.
Partly Cloudy
30.0°C 24.0°C 0.2 mm 4/4 19.0 km/h 78%
26 Sep.
Patchy rain nearby
28.0°C 25.0°C 0.3 mm 2/4 26.0 km/h 83%
27 Sep.
Partly Cloudy
29.0°C 24.0°C 0.0 mm 3/4 25.0 km/h 80%
28 Sep.
Partly Cloudy
29.0°C 24.0°C 0.1 mm 4/4 25.0 km/h 72%
29 Sep.
Partly Cloudy
30.0°C 24.0°C 0.1 mm 4/4 15.0 km/h 79%
30 Sep.
Partly Cloudy
30.0°C 24.0°C 0.0 mm 4/4 22.0 km/h 78%

Compare the weather for September 2021 in Hale'iwa with other months in the archives

Compare the main data from archived weather forecasts in Hale'iwa 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.

Analyzed month
September 2021
Data type August 2021 September 2021 October 2021
Average temperature 26.0°C 26.8°C 26.0°C
Maximum temperature 27.4°C 29.3°C 28.3°C
Minimum temperature 24.3°C 24.3°C 23.6°C
Highest maximum temperature 30.0°C 31.0°C 30.0°C
Highest minimum temperature 25.0°C 25.0°C 25.0°C
Lowest minimum temperature 23.0°C 24.0°C 22.0°C
Wind speed 19 km/h 21 km/h 22 km/h
Wind temperature 24.3°C 24.3°C 23.6°C
Average precipitation per day 1.0 mm 0.1 mm 0.2 mm
Record rainfall in one day 13.2 mm 0.4 mm 1.2 mm
Total precipitation over the month 32.4 mm 4.1 mm 4.7 mm
Number of days with precipitation 5 0 1
Humidity 77% 77% 78%
Visibility 9.9 km 10.0 km 10.0 km
Cloud cover 44% 36% 41%
Heat index 29 32 31
Dew point 20.8°C 21.8°C 21.4°C
Pressure 1,018 hPa 1,018 hPa 1,018 hPa
Sunrise time 06:10:48 06:19:28 06:28:52
Sunset time 19:01:19 18:34:16 18:06:54
Day length 12:50 12:14 11:38

Average temperature

September 2021
26.8°C
August 2021
26.0°C
October 2021
26.0°C

Maximum temperature

September 2021
29.3°C
August 2021
27.4°C
October 2021
28.3°C

Minimum temperature

September 2021
24.3°C
August 2021
24.3°C
October 2021
23.6°C

Highest maximum temperature

September 2021
31.0°C
August 2021
30.0°C
October 2021
30.0°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
23.0°C
October 2021
22.0°C

Wind speed

September 2021
21 km/h
August 2021
19 km/h
October 2021
22 km/h

Wind temperature

September 2021
24.3°C
August 2021
24.3°C
October 2021
23.6°C

Average precipitation per day

September 2021
0.1 mm
August 2021
1.0 mm
October 2021
0.2 mm

Record rainfall in one day

September 2021
0.4 mm
August 2021
13.2 mm
October 2021
1.2 mm

Total precipitation over the month

September 2021
4.1 mm
August 2021
32.4 mm
October 2021
4.7 mm

Number of days with precipitation

September 2021
0
August 2021
5
October 2021
1

Humidity

September 2021
77%
August 2021
77%
October 2021
78%

Visibility

September 2021
10.0 km
August 2021
9.9 km
October 2021
10.0 km

Cloud cover

September 2021
36%
August 2021
44%
October 2021
41%

Heat index

September 2021
32
August 2021
29
October 2021
31

Dew point

September 2021
21.8°C
August 2021
20.8°C
October 2021
21.4°C

Pressure

September 2021
1,018 hPa
August 2021
1,018 hPa
October 2021
1,018 hPa

Sunrise time

September 2021
06:19:28
August 2021
06:10:48
October 2021
06:28:52

Sunset time

September 2021
18:34:16
August 2021
19:01:19
October 2021
18:06:54

Day length

September 2021
12:14
August 2021
12:50
October 2021
11:38

Nearby of Hale'iwa

Find on the map and in the list the towns closest to of Hale'iwa to view the archived weather forecast history for the same period.

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