September weather forecastSaint Terese, AK
September
Weather in September
The first month of the autumn, September, is still a chilly month in Saint Terese, Alaska, with an average temperature ranging between min 41.9°F (5.5°C) and max 48.4°F (9.1°C).Temperature
The average high-temperature shows a slight dip in September, from August's cool 54°F (12.2°C) to a chilly 48.4°F (9.1°C). During September, Saint Terese perceives a slight decrease in temperature from daytime highs, settling at an average low of 41.9°F (5.5°C).Humidity
In September, the average relative humidity is 88%.Rainfall
In Saint Terese, in September, during 20.5 rainfall days, 7.13" (181mm) of precipitation is typically accumulated. In Saint Terese, during the entire year, the rain falls for 203.6 days and collects up to 74.57" (1894mm) of precipitation.Snowfall
In Saint Terese, Alaska, snow does not fall in June through September.Daylight
The average length of the day in September is 12h and 47min.On the first day of September, sunrise is at 6:00 am and sunset at 7:57 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 6:34 pm AKDT.
Sunshine
In Saint Terese, the average sunshine in September is 5.5h.UV index
The average daily maximum UV index in September is 2. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for the average person.Note: In September, the maximum UV index of 2 transforms into these recommendations:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Saint Terese, AK
- Average high temperature in September: 48.4°F
The warmest month (with the highest average high temperature) is July (55°F).
The months with the lowest average high temperature are January and December (27.7°F).
- Average low temperature in September: 41.9°F
The month with the highest average low temperature is August (46.4°F).
The coldest month (with the lowest average low temperature) is February (19.9°F).
Average pressure in September
Saint Terese, AK
- Average pressure in September: 29.88"Hg
The month with the highest atmospheric pressure is July (30.03"Hg).
The month with the lowest atmospheric pressure is November (29.8"Hg).
Average wind speed in September
Saint Terese, AK
- Average wind speed in September: 5.7mph
The windiest month (with the highest average wind speed) is January (7.5mph).
The calmest months (with the lowest average wind speed) are June and July (3.8mph).
Average humidity in September
Saint Terese, AK
- Average humidity in September: 88%
The months with the highest relative humidity are January and August (89%).
The month with the lowest relative humidity is November (85%).
Average rainfall in September
Saint Terese, AK
- Average rainfall in September: 7.13"
The wettest month (with the highest rainfall) is October (9.06").
The driest month (with the least rainfall) is May (3.5").
Average rainfall days in September
Saint Terese, AK
- Average rainfall days in September: 20.5 days
The month with the highest number of rainy days is October (21.6 days).
The month with the least rainy days is February (9.3 days).
Average snowfall in September
Saint Terese, AK
- Average snowfall in September: 0"
The month with the highest snowfall is December (26.69").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Saint Terese, AK
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (17.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Saint Terese, AK
- Average daylight in September: 12h and 48min
The month with the longest days is June (Average daylight: 18h and 12min).
The month with the shortest days is December (Average daylight: 6h and 30min).
- Average sunshine in September: 5h and 30min
The month with the most sunshine is June (Average sunshine: 7h and 42min).
The months with the least sunshine are January and November (Average sunshine: 3h and 0min).
Average sunshine days in September
Saint Terese, AK
- Average sunshine days in September: 8.1 days
The month with the most sunshine days is May (11.1 days).
The month with the least sunshine days is January (6.4 days).
Average UV index in September
Saint Terese, AK
- Average UV index in September: 2
The months with the highest UV index are May, June and July (UV index 3).
The months with the lowest UV index are October, November and December (UV index 1).
Average cloud cover in September
Saint Terese, AK
- Average cloud cover in September: 63
The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is May (Cloud cover 56).
Average visibility in September
Saint Terese, AK
- Average visibility in September: 5mi
The months with the highest visibility are February, March, April, May, June, September, October, November and December (5mi).
The months with the lowest visibility are January, July and August (4mi).
