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 snowfall in September
- Average snowfall 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 onset of September entails a subtle temperature shift, as the average high-temperature eases from a moderate 55.6°F (13.1°C) in August to a cool 50.2°F (10.1°C). Igiugig sustains an average of approximately a chilly 44.1°F (6.7°C) during September nights, with little variation from daytime highs.Humidity
The average relative humidity in September in Igiugig is 81%.Rainfall
In September, the rain falls for 13.7 days. Throughout September, 1.5" (38mm) of precipitation is accumulated. Throughout the year, there are 118.1 rainfall days, and 13.58" (345mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September in Igiugig is 12h and 48min.On the first day of the month, sunrise is at 7:22 am and sunset at 9:23 pm. On the last day of September, sunrise is at 8:28 am and sunset at 7:57 pm AKDT.
Sunshine
In Igiugig, Alaska, the average sunshine in September is 5.9h.UV index
In September, the average daily maximum UV index in Igiugig is 2. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for average individuals.Note: The maximum UV index of 2 during September leads to these instructions:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. Direct Sun exposure should be minimized especially during midday when radiation is most intense. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
Does it snow in September?
What is the average length of the day in September in Igiugig?
When is the sunrise / sunset in September?
How many hours of sunshine does Igiugig have in September?
What is the UV index reading in September?
Average temperature in September
Igiugig, AK
- Average high temperature in September: 50.2°F
The warmest month (with the highest average high temperature) is July (56.7°F).
The month with the lowest average high temperature is January (23.9°F).
- Average low temperature in September: 44.1°F
The month with the highest average low temperature is July (49.1°F).
The coldest months (with the lowest average low temperature) are January and March (17.1°F).
Average pressure in September
Igiugig, AK
- Average pressure in September: 29.72"Hg
The month with the highest atmospheric pressure is July (29.96"Hg).
The month with the lowest atmospheric pressure is December (29.63"Hg).
Average wind speed in September
Igiugig, AK
- Average wind speed in September: 10.9mph
The windiest month (with the highest average wind speed) is December (13.2mph).
The calmest month (with the lowest average wind speed) is July (9.1mph).
Average humidity in September
Igiugig, AK
- Average humidity in September: 81%
The months with the highest relative humidity are January, February, March and December (85%).
The month with the lowest relative humidity is May (76%).
Average rainfall in September
Igiugig, AK
- Average rainfall in September: 1.5"
The wettest month (with the highest rainfall) is November (1.69").
The driest month (with the least rainfall) is January (0.59").
Average rainfall days in September
Igiugig, AK
- Average rainfall days in September: 13.7 days
The month with the highest number of rainy days is July (15 days).
The month with the least rainy days is February (4.7 days).
Average snowfall in September
Igiugig, AK
- Average snowfall in September: 0"
The month with the highest snowfall is December (4.92").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Igiugig, AK
- Average snowfall days in September: 0.3 days
The month with the highest number of snowfall days is December (13.5 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Igiugig, AK
- Average daylight in September: 12h and 5min
The month with the longest days is June (Average daylight: 18h and 30min).
The month with the shortest days is December (Average daylight: 6h and 12min).
- Average sunshine in September: 5h and 5min
The month with the most sunshine is June (Average sunshine: 9h and 54min).
The month with the least sunshine is December (Average sunshine: 2h and 30min).
Average sunshine days in September
Igiugig, AK
- Average sunshine days in September: 14.4 days
The month with the most sunshine days is May (17.3 days).
The month with the least sunshine days is November (11.1 days).
Average UV index in September
Igiugig, AK
- Average UV index in September: 2
The months with the highest UV index are June and July (UV index 4).
The months with the lowest UV index are November and December (UV index 1).
Average cloud cover in September
Igiugig, AK
- Average cloud cover in September: 54
The month with the most cloud cover is December (Cloud cover 64).
The month with the least cloud cover is June (Cloud cover 48).
Average visibility in September
Igiugig, AK
- 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).
Igiugig, Alaska, USA
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