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
September brings an average high-temperature of a still refreshing 66.4°F (19.1°C), nearly identical to the preceding month. Honokaa's nocturnal readings in September exhibit minimal variation from the daytime temperatures, averaging at a mild 59°F (15°C).Humidity
The months with the highest humidity are September and October, with an average relative humidity of 84%.Rainfall
In September, the rain falls for 27.3 days. Throughout September, 3.31" (84mm) of precipitation is accumulated. Throughout the year, in Honokaa, there are 280.8 rainfall days, and 33.9" (861mm) of precipitation is accumulated.Daylight
The average length of the day in September in Honokaa, Hawaii, is 12h and 14min.On the first day of September, sunrise is at 6:06 am and sunset at 6:36 pm. On the last day of the month, sunrise is at 6:12 am and sunset at 6:10 pm HST.
Sunshine
In September, the average sunshine is 7.7h.UV index
May through October, with an average maximum UV index of 5, are months with the highest UV index. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: In September, the average maximum UV index of 5 translates into the following recommendations:
Undertake precautions - It is suggested to shield oneself from sunburn. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Frequently asked questions
What are September temperatures in Honokaa?
What is the most humid month in Honokaa?
What is the average humidity in September in Honokaa?
How many days does it rain in September in Honokaa?
What is the average length of the day in September in Honokaa?
What time are sunrise and sunset in September in Honokaa?
How long on average sun shines in September in Honokaa?
What is the month with the highest UV index in Honokaa?
How high is the UV index in September in Honokaa?
Average temperature in September
Honokaa, HI
- Average high temperature in September: 66.4°F
The warmest month (with the highest average high temperature) is August (67.5°F).
The month with the lowest average high temperature is March (61.9°F).
- Average low temperature in September: 59°F
The month with the highest average low temperature is September (59°F).
The coldest month (with the lowest average low temperature) is February (52°F).
Average pressure in September
Honokaa, HI
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is April (30.05"Hg).
The months with the lowest atmospheric pressure are September and October (29.97"Hg).
Average wind speed in September
Honokaa, HI
- Average wind speed in September: 4.6mph
The windiest months (with the highest average wind speed) are July and August (5.5mph).
The calmest months (with the lowest average wind speed) are January, May and October (4.5mph).
Average humidity in September
Honokaa, HI
- Average humidity in September: 84%
The months with the highest relative humidity are September and October (84%).
The month with the lowest relative humidity is February (78%).
Average rainfall in September
Honokaa, HI
- Average rainfall in September: 3.31"
The wettest month (with the highest rainfall) is August (4.13").
The driest month (with the least rainfall) is June (1.57").
Average rainfall days in September
Honokaa, HI
- Average rainfall days in September: 27.3 days
The month with the highest number of rainy days is September (27.3 days).
The month with the least rainy days is January (17.1 days).
Average daylight in September /
Average sunshine in September
Honokaa, HI
- Average daylight in September: 12h and 1min
The month with the longest days is June (Average daylight: 13h and 18min).
The month with the shortest days is December (Average daylight: 10h and 54min).
- Average sunshine in September: 7h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).
Average sunshine days in September
Honokaa, HI
- Average sunshine days in September: 0.8 days
The month with the most sunshine days is January (9.7 days).
The month with the least sunshine days is September (0.8 days).
Average UV index in September
Honokaa, HI
- Average UV index in September: 5
The months with the highest UV index are May, June, July, August, September and October (UV index 5).
The months with the lowest UV index are January, February, March, April, November and December (UV index 4).
Average cloud cover in September
Honokaa, HI
- Average cloud cover in September: 43
The months with the most cloud cover are April and September (Cloud cover 43).
The month with the least cloud cover is January (Cloud cover 29).
Average visibility in September
Honokaa, 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).
Honokaa, Hawaii, USA
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