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 September, Hōnaunau records an average high-temperature of a still pleasant 73°F (22.8°C), marking a slight divergence from August's 73.2°F (22.9°C). In Hōnaunau, the September nights are characterized by an average low-temperature of 69.8°F (21°C), a minor dip from daytime readings.Humidity
The months with the highest humidity are June through September, with an average relative humidity of 81%.Rainfall
The month with the most rainfall is September, when the rain falls for 21.5 days and typically aggregates up to 1.81" (46mm) of precipitation.Daylight
The average length of the day in September in Hōnaunau is 12h and 14min.On the first day of the month, sunrise is at 6:08 am and sunset at 6:38 pm. On the last day of September, sunrise is at 6:14 am and sunset at 6:12 pm HST.
Sunshine
In September, the average sunshine is 8.7h.UV index
May through October, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for average individuals.Note: In September, the maximum UV index of 6 translates into these guidelines:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Frequently asked questions
What is the temperature in September in Hōnaunau?
What are the most humid months in Hōnaunau?
What is the average humidity in September in Hōnaunau?
What is the rainiest month in Hōnaunau?
How many days does it rain in September in Hōnaunau?
What is the average length of the day in September in Hōnaunau?
When are sunrise and sunset in September in Hōnaunau?
How many hours of sunshine does Hōnaunau have in September?
When is the highest UV index in Hōnaunau?
How high is the UV index in September in Hōnaunau?
Average temperature in September
Hōnaunau, HI
- Average high temperature in September: 73°F
The warmest months (with the highest average high temperature) are August and October (73.2°F).
The month with the lowest average high temperature is February (68.9°F).
- Average low temperature in September: 69.8°F
The month with the highest average low temperature is October (70°F).
The coldest month (with the lowest average low temperature) is March (64.8°F).
Average pressure in September
Hōnaunau, HI
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is April (30.04"Hg).
The months with the lowest atmospheric pressure are September and October (29.96"Hg).
Average wind speed in September
Hōnaunau, HI
- Average wind speed in September: 6.2mph
The windiest month (with the highest average wind speed) is May (6.3mph).
The calmest month (with the lowest average wind speed) is December (5.3mph).
Average humidity in September
Hōnaunau, HI
- Average humidity in September: 81%
The months with the highest relative humidity are June, July, August and September (81%).
The month with the lowest relative humidity is February (73%).
Average rainfall in September
Hōnaunau, HI
- Average rainfall in September: 1.81"
The wettest month (with the highest rainfall) is September (1.81").
The driest month (with the least rainfall) is January (0.75").
Average rainfall days in September
Hōnaunau, HI
- Average rainfall days in September: 21.5 days
The month with the highest number of rainy days is August (21.8 days).
The month with the least rainy days is January (10.8 days).
Average daylight in September /
Average sunshine in September
Hōnaunau, 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: 11h and 0min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is May (Average sunshine: 10h and 42min).
The months with the least sunshine are November and December (Average sunshine: 7h and 18min).
Average sunshine days in September
Hōnaunau, HI
- Average sunshine days in September: 3.5 days
The month with the most sunshine days is January (12.7 days).
The month with the least sunshine days is May (3.2 days).
Average UV index in September
Hōnaunau, HI
- Average UV index in September: 6
The months with the highest UV index are May, June, July, August, September and October (UV index 6).
The months with the lowest UV index are January, February, March, April, November and December (UV index 5).
Average cloud cover in September
Hōnaunau, HI
- Average cloud cover in September: 28
The month with the most cloud cover is June (Cloud cover 31).
The month with the least cloud cover is January (Cloud cover 15).
Average visibility in September
Hōnaunau, 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).
Hōnaunau, Hawaii, USA
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