September weather forecastNikolaevsk, AK
September
Weather in September
The first month of the autumn, September, is also a fresh month in Nikolaevsk, Alaska, with temperature in the range of an average low of 46.9°F (8.3°C) and an average high of 51.4°F (10.8°C).Temperature
Nikolaevsk experiences a recorded average high-temperature of a cool 51.4°F (10.8°C) in September, closely aligned with August's 55.9°F (13.3°C). Nikolaevsk observes a consistent average low-temperature of 46.9°F (8.3°C) throughout September nights.Humidity
In Nikolaevsk, the average relative humidity in September is 80%.Rainfall
In September, the rain falls for 18.1 days. Throughout September, 3.5" (89mm) of precipitation is accumulated. In Nikolaevsk, during the entire year, the rain falls for 159.7 days and collects up to 29.65" (753mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
In September, the average length of the day is 12h and 49min.On the first day of September, sunrise is at 7:04 am and sunset at 9:07 pm. On the last day of the month, sunrise is at 8:11 am and sunset at 7:40 pm AKDT.
Sunshine
In September, the average sunshine is 6.4h.UV index
In Nikolaevsk, the average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: In September, the maximum UV index of 3 transforms into these recommendations:
Be vigilant - Suggestions to stave off sun damage are provided. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Nikolaevsk, AK
- Average high temperature in September: 51.4°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 (28.9°F).
- Average low temperature in September: 46.9°F
The month with the highest average low temperature is August (51.3°F).
The coldest month (with the lowest average low temperature) is January (24.6°F).
Average pressure in September
Nikolaevsk, 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 (29.61"Hg).
Average wind speed in September
Nikolaevsk, AK
- Average wind speed in September: 9mph
The windiest month (with the highest average wind speed) is January (13.5mph).
The calmest month (with the lowest average wind speed) is June (7.1mph).
Average humidity in September
Nikolaevsk, AK
- Average humidity in September: 80%
The months with the highest relative humidity are January, July, August and December (83%).
The month with the lowest relative humidity is May (76%).
Average rainfall in September
Nikolaevsk, AK
- Average rainfall in September: 3.5"
The wettest month (with the highest rainfall) is October (3.94").
The driest month (with the least rainfall) is June (1.26").
Average rainfall days in September
Nikolaevsk, AK
- Average rainfall days in September: 18.1 days
The month with the highest number of rainy days is September (18.1 days).
The month with the least rainy days is February (7.8 days).
Average snowfall in September
Nikolaevsk, AK
- Average snowfall in September: 0"
The month with the highest snowfall is February (6.26").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Nikolaevsk, AK
- Average snowfall days in September: 0.2 days
The month with the highest number of snowfall days is December (12.5 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Nikolaevsk, AK
- Average daylight in September: 12h and 48min
The month with the longest days is June (Average daylight: 18h and 42min).
The month with the shortest days is December (Average daylight: 6h and 6min).
- Average sunshine in September: 6h and 24min
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 36min).
Average sunshine days in September
Nikolaevsk, AK
- Average sunshine days in September: 10.7 days
The month with the most sunshine days is March (14.5 days).
The month with the least sunshine days is December (10.3 days).
Average UV index in September
Nikolaevsk, AK
- Average UV index in September: 3
The months with the highest UV index are June and July (UV index 4).
The months with the lowest UV index are February and December (UV index 1).
Average cloud cover in September
Nikolaevsk, AK
- Average cloud cover in September: 50
The month with the most cloud cover is December (Cloud cover 61).
The months with the least cloud cover are June and July (Cloud cover 47).
Average visibility in September
Nikolaevsk, 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).





