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 sea temperature 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 notes an average high-temperature of a still fresh 50°F (10°C), subtly shifted from August's 53.2°F (11.8°C). Nighttime temperatures in Akutan record an average of 47.1°F (8.4°C) throughout September.Humidity
In Akutan, the average relative humidity in September is 87%.Rainfall
In Akutan, Alaska, in September, it is raining for 19.8 days, with typically 2.72" (69mm) of accumulated precipitation. Throughout the year, there are 198.8 rainfall days, and 33.78" (858mm) of precipitation is accumulated.Snowfall
In Akutan, snow does not fall in June through September.Ocean temperature
In Akutan, in September, the average water temperature is 48°F (8.9°C).Note: With an efficient thermal swimsuit, one can navigate 48°F (8.9°C) even if it's colder than 50°F (10°C); otherwise, rapid cold shock and breathlessness might set in. Barely wading at 55.4°F (13°C) feels chilly.
Daylight
The average length of the day in September is 12h and 40min.On the first day of September in Akutan, Alaska, sunrise is at 8:13 am and sunset at 9:52 pm. On the last day of the month, sunrise is at 9:05 am and sunset at 8:40 pm AKDT.
Sunshine
The average sunshine in September is 4.7h.UV index
The average daily maximum UV index in September is 2. A UV Index estimate of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for the average person.Note: The maximum UV index of 2 during September leads to these instructions:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Frequently asked questions
What is the average September temperature in Akutan?
What is the average humidity in September in Akutan?
How much does it rain in Akutan in September?
When it does not snow in Akutan?
Does it snow in Akutan in September?
How cold is the water in September in Akutan?
What is the average length of the day in September in Akutan?
What time are sunrise and sunset in September in Akutan?
How long on average sun shines in September in Akutan?
How high is the UV index in September in Akutan?
Average temperature in September
Akutan, AK
- Average high temperature in September: 50°F
The warmest month (with the highest average high temperature) is August (53.2°F).
The month with the lowest average high temperature is March (34.7°F).
- Average low temperature in September: 47.1°F
The month with the highest average low temperature is August (49.6°F).
The coldest month (with the lowest average low temperature) is March (30.7°F).
Average pressure in September
Akutan, AK
- Average pressure in September: 29.79"Hg
The month with the highest atmospheric pressure is July (29.98"Hg).
The month with the lowest atmospheric pressure is January (29.5"Hg).
Average wind speed in September
Akutan, AK
- Average wind speed in September: 12.9mph
The windiest months (with the highest average wind speed) are November and December (16.5mph).
The calmest month (with the lowest average wind speed) is July (9.1mph).
Average humidity in September
Akutan, AK
- Average humidity in September: 87%
The month with the highest relative humidity is July (91%).
The months with the lowest relative humidity are November and December (80%).
Average rainfall in September
Akutan, AK
- Average rainfall in September: 2.72"
The wettest month (with the highest rainfall) is December (4.21").
The driest month (with the least rainfall) is July (1.85").
Average rainfall days in September
Akutan, AK
- Average rainfall days in September: 19.8 days
The month with the highest number of rainy days is October (21.8 days).
The month with the least rainy days is February (11.1 days).
Average snowfall in September
Akutan, AK
- Average snowfall in September: 0"
The month with the highest snowfall is January (6.97").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Akutan, AK
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (14.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in September
Akutan, AK
- Average sea temperature in September: 48.1°F
The best month for swimming (with the highest average sea temperature) is August (49.6°F).
The coldest month (with the lowest average sea temperature) is February (38.6°F).
Average daylight in September /
Average sunshine in September
Akutan, AK
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 17h and 6min).
The month with the shortest days is December (Average daylight: 7h and 30min).
- Average sunshine in September: 4h and 4min
The month with the most sunshine is June (Average sunshine: 5h and 48min).
The month with the least sunshine is December (Average sunshine: 2h and 0min).
Average sunshine days in September
Akutan, AK
- Average sunshine days in September: 6.9 days
The month with the most sunshine days is August (9.7 days).
The month with the least sunshine days is April (3.8 days).
Average UV index in September
Akutan, AK
- Average UV index in September: 2
The months with the highest UV index are July and August (UV index 3).
The months with the lowest UV index are February, March, April and November (UV index 1).
Average cloud cover in September
Akutan, AK
- Average cloud cover in September: 66
The month with the most cloud cover is July (Cloud cover 74).
The months with the least cloud cover are September and October (Cloud cover 66).
Average visibility in September
Akutan, AK
- Average visibility in September: 6mi
The months with the highest visibility are May, June, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March, April, July and December (5mi).
Akutan, Alaska, USA
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