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
The height of temperatures is seen during August and September, averaging a high-temperature of 80.2°F (26.8°C).Humidity
In Ho'olehua, the average relative humidity in September is 75%.Rainfall
In September, the rain falls for 10.1 days. Throughout September, 0.75" (19mm) of precipitation is accumulated. Throughout the year, there are 126.4 rainfall days, and 9.84" (250mm) of precipitation is accumulated.Daylight
In September, the average length of the day in Ho'olehua, Hawaii, is 12h and 15min.On the first day of the month, sunrise is at 6:12 am and sunset at 6:43 pm. On the last day of September, sunrise is at 6:19 am and sunset at 6:16 pm HST.
Sunshine
In September, the average sunshine is 9.5h.UV index
The months with the highest UV index in Ho'olehua are June through October, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the average person.Note: The maximum UV index of 7 during September leads to these instructions:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Frequently asked questions
What is the warmest month in Ho'olehua?
What are September temperatures in Ho'olehua?
What is the average humidity in September in Ho'olehua?
How much does it rain in Ho'olehua in September?
What is the average length of the day in September in Ho'olehua?
When is the sunrise / sunset in September in Ho'olehua?
How many hours of sunshine does Ho'olehua have in September?
What is the month with the highest UV index in Ho'olehua?
What is the UV index reading in September in Ho'olehua?
Average temperature in September
Ho'olehua, 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
Ho'olehua, 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
Ho'olehua, 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
Ho'olehua, 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
Ho'olehua, 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
Ho'olehua, 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
Ho'olehua, 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
Ho'olehua, 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
Ho'olehua, 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
Ho'olehua, 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
Ho'olehua, 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).
Ho'olehua, Hawaii, USA
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