Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
During August and September, Kualapuu registers its highest temperatures, averaging a high of 80.2°F (26.8°C).Humidity
In Kualapuu, the average relative humidity in September is 75%.Rainfall
In September, in Kualapuu, the rain falls for 10.1 days. Throughout September, 0.75" (19mm) of precipitation is accumulated. Throughout the year, in Kualapuu, there are 126.4 rainfall days, and 9.84" (250mm) of precipitation is accumulated.Daylight
In Kualapuu, the average length of the day in September is 12h and 15min.On the first day of the month, sunrise is at 6:12 am and sunset at 6:44 pm. On the last day of September, in Kualapuu, sunrise is at 6:19 am and sunset at 6:16 pm HST.
Sunshine
The average sunshine in September in Kualapuu is 9.5h.UV index
The months with the highest UV index in Kualapuu are June through October, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: A daily maximum UV index of 7 in September translates into the following instructions:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Frequently asked questions
What are the warmest months in Kualapuu?
What are the temperatures in Kualapuu in September?
What is the average humidity in September in Kualapuu?
How much does it rain in Kualapuu in September?
What is the average length of the day in September in Kualapuu?
When is the sunrise / sunset in September in Kualapuu?
How long on average sun shines in September in Kualapuu?
What are the months with the highest UV index in Kualapuu?
What is the UV index intensity in September in Kualapuu?
Average temperature in September
Kualapuu, HI
- Average high temperature in September: 80.2°F
The warmest months (with the highest average high temperature) are August and September (80.2°F).
The month with the lowest average high temperature is February (74.3°F).
- Average low temperature in September: 77.2°F
The months with the highest average low temperature are September and October (77.2°F).
The coldest month (with the lowest average low temperature) is March (71.2°F).
Average pressure in September
Kualapuu, HI
- Average pressure in September: 29.97"Hg
The months with the highest atmospheric pressure are March and April (30.05"Hg).
The months with the lowest atmospheric pressure are September and October (29.97"Hg).
Average wind speed in September
Kualapuu, HI
- Average wind speed in September: 11.8mph
The windiest month (with the highest average wind speed) is July (13.9mph).
The calmest month (with the lowest average wind speed) is January (10.8mph).
Average humidity in September
Kualapuu, HI
- Average humidity in September: 75%
The months with the highest relative humidity are April, May, June, July and August (76%).
The months with the lowest relative humidity are January and November (74%).
Average rainfall in September
Kualapuu, HI
- Average rainfall in September: 0.75"
The wettest month (with the highest rainfall) is March (1.3").
The driest month (with the least rainfall) is July (0.31").
Average rainfall days in September
Kualapuu, HI
- Average rainfall days in September: 10.1 days
The month with the highest number of rainy days is March (13.2 days).
The month with the least rainy days is July (8.5 days).
Average daylight in September /
Average sunshine in September
Kualapuu, HI
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 13h and 24min).
The month with the shortest days is December (Average daylight: 10h and 54min).
- Average sunshine in September: 9h and 3min
The month with the most sunshine is June (Average sunshine: 11h and 30min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).
Average sunshine days in September
Kualapuu, HI
- Average sunshine days in September: 12.7 days
The month with the most sunshine days is July (16.1 days).
The month with the least sunshine days is November (10.8 days).
Average UV index in September
Kualapuu, HI
- Average UV index in September: 7
The months with the highest UV index are June, July, August, September and October (UV index 7).
The months with the lowest UV index are January, February, March, April, May, November and December (UV index 6).
Average cloud cover in September
Kualapuu, HI
- Average cloud cover in September: 23
The months with the most cloud cover are February and March (Cloud cover 30).
The month with the least cloud cover is September (Cloud cover 23).
Average visibility in September
Kualapuu, HI
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Kualapuu, Hawaii, USA
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