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
Kilauea's temperatures tend to reach their peak averages in September, with a high of 79.7°F (26.5°C) and a low of 75.9°F (24.4°C).Humidity
In Kilauea, the average relative humidity in September is 76%.Rainfall
In September, the rain falls for 18.7 days. Throughout September, 1.54" (39mm) of precipitation is accumulated. Throughout the year, in Kilauea, Hawaii, there are 218.4 rainfall days, and 22.13" (562mm) of precipitation is accumulated.Daylight
The average length of the day in September in Kilauea, Hawaii, is 12h and 16min.On the first day of the month, sunrise is at 6:20 am and sunset at 6:53 pm. On the last day of September, sunrise is at 6:29 am and sunset at 6:25 pm HST.
Sunshine
In Kilauea, the average sunshine in September is 8.7h.UV index
September is the month with the highest UV index in Kilauea, Hawaii, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for average individuals.Note: In September, the maximum UV index of 7 suggests these recommendations:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Frequently asked questions
What month is the hottest in Kilauea?
What are September temperatures in Kilauea?
What is the average humidity in September in Kilauea?
How many days does it rain in September in Kilauea?
What is the average length of the day in September in Kilauea?
When are sunrise and sunset in September in Kilauea?
How long on average sun shines in September in Kilauea?
What is the month with the highest UV index in Kilauea?
How high is the UV index in September in Kilauea?
Average temperature in September
Kilauea, HI
- Average high temperature in September: 79.7°F
The warmest month (with the highest average high temperature) is September (79.7°F).
The months with the lowest average high temperature are February and March (73.2°F).
- Average low temperature in September: 75.9°F
The month with the highest average low temperature is September (75.9°F).
The coldest month (with the lowest average low temperature) is February (68.5°F).
Average pressure in September
Kilauea, HI
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is April (30.07"Hg).
The months with the lowest atmospheric pressure are September and October (29.98"Hg).
Average wind speed in September
Kilauea, HI
- Average wind speed in September: 11.1mph
The windiest month (with the highest average wind speed) is July (12.3mph).
The calmest month (with the lowest average wind speed) is January (10mph).
Average humidity in September
Kilauea, HI
- Average humidity in September: 76%
The months with the highest relative humidity are June, July, August, October and December (77%).
The month with the lowest relative humidity is January (75%).
Average rainfall in September
Kilauea, HI
- Average rainfall in September: 1.54"
The wettest month (with the highest rainfall) is March (2.52").
The driest month (with the least rainfall) is April (1.3").
Average rainfall days in September
Kilauea, HI
- Average rainfall days in September: 18.7 days
The month with the highest number of rainy days is August (21.1 days).
The month with the least rainy days is January (12.5 days).
Average daylight in September /
Average sunshine in September
Kilauea, HI
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 13h and 30min).
The month with the shortest days is December (Average daylight: 10h and 48min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is June (Average sunshine: 9h and 42min).
The month with the least sunshine is November (Average sunshine: 6h and 12min).
Average sunshine days in September
Kilauea, HI
- Average sunshine days in September: 5.3 days
The month with the most sunshine days is January (12.8 days).
The month with the least sunshine days is August (2.9 days).
Average UV index in September
Kilauea, HI
- Average UV index in September: 7
The month with the highest UV index is September (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, October, November and December (UV index 6).
Average cloud cover in September
Kilauea, HI
- Average cloud cover in September: 38
The month with the most cloud cover is March (Cloud cover 47).
The months with the least cloud cover are January and September (Cloud cover 38).
Average visibility in September
Kilauea, 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).
Kilauea, Hawaii, USA
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