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 average high-temperature is a still mild 56.3°F (13.5°C) in September, hardly different from the 59.7°F (15.4°C) recorded in August. During the September nights, Metlakatla's temperature maintains an average close to the daytime highs, settling at a fresh 50.9°F (10.5°C).Humidity
The average relative humidity in September in Metlakatla is 85%.Rainfall
In Metlakatla, in September, it is raining for 18.7 days, with typically 7.8" (198mm) of accumulated precipitation. Throughout the year, in Metlakatla, there are 227.1 rainfall days, and 90.98" (2311mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall.Ocean temperature
In September, the average ocean temperature is 53.2°F (11.8°C).Note: Swimming in 53.2°F (11.8°C) poses a severe threat. Even short exposure to 55.4°F (13°C) is chilling, and going below 50°F (10°C) can cause breathing irregularities and intense cold shock, based on one's stamina.
Daylight
In Metlakatla, Alaska, the average length of the day in September is 12h and 41min.On the first day of September in Metlakatla, Alaska, sunrise is at 5:54 am and sunset at 7:37 pm. On the last day of the month, sunrise is at 6:48 am and sunset at 6:23 pm AKDT.
Sunshine
In Metlakatla, the average sunshine in September is 6.3h.UV index
In September, the average daily maximum UV index in Metlakatla is 3. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the average person.Note: A daily maximum UV index of 3 in September translates into the following instructions:
Take measures. Individuals with light skin might experience burns in under 30 minutes. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Frequently asked questions
What are the temperatures in Metlakatla in September?
What is the average humidity in September in Metlakatla?
How much does it rain in Metlakatla in September?
When it does not snow in Metlakatla?
What is the ocean temperature in September in Metlakatla?
How many hours of daylight does Metlakatla have in September?
When is the sunrise / sunset in September in Metlakatla?
How long on average sun shines in September in Metlakatla?
What is the UV index reading in September in Metlakatla?
Average temperature in September
Metlakatla, AK
- Average high temperature in September: 56.3°F
The warmest month (with the highest average high temperature) is August (59.7°F).
The month with the lowest average high temperature is December (39.2°F).
- Average low temperature in September: 50.9°F
The month with the highest average low temperature is August (54°F).
The coldest month (with the lowest average low temperature) is February (34.3°F).
Average pressure in September
Metlakatla, AK
- Average pressure in September: 29.93"Hg
The month with the highest atmospheric pressure is July (30.06"Hg).
The month with the lowest atmospheric pressure is November (29.8"Hg).
Average wind speed in September
Metlakatla, AK
- Average wind speed in September: 9mph
The windiest month (with the highest average wind speed) is January (13.3mph).
The calmest month (with the lowest average wind speed) is July (7.4mph).
Average humidity in September
Metlakatla, AK
- Average humidity in September: 85%
The month with the highest relative humidity is August (87%).
The month with the lowest relative humidity is February (78%).
Average rainfall in September
Metlakatla, AK
- Average rainfall in September: 7.8"
The wettest month (with the highest rainfall) is November (10.67").
The driest month (with the least rainfall) is May (3.7").
Average rainfall days in September
Metlakatla, AK
- Average rainfall days in September: 18.7 days
The month with the highest number of rainy days is November (23 days).
The month with the least rainy days is February (15.2 days).
Average snowfall in September
Metlakatla, AK
- Average snowfall in September: 0"
The month with the highest snowfall is January (7.05").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Metlakatla, AK
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is March (8.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in September
Metlakatla, AK
- Average sea temperature in September: 53.3°F
The best month for swimming (with the highest average sea temperature) is August (55.9°F).
The coldest month (with the lowest average sea temperature) is March (42.5°F).
Average daylight in September /
Average sunshine in September
Metlakatla, AK
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 17h and 18min).
The month with the shortest days is December (Average daylight: 7h and 18min).
- Average sunshine in September: 6h and 2min
The month with the most sunshine is May (Average sunshine: 7h and 12min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).
Average sunshine days in September
Metlakatla, AK
- Average sunshine days in September: 10.2 days
The months with the most sunshine days are May and August (12.2 days).
The month with the least sunshine days is November (5.6 days).
Average UV index in September
Metlakatla, AK
- Average UV index in September: 3
The months with the highest UV index are July and August (UV index 4).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in September
Metlakatla, AK
- Average cloud cover in September: 55
The month with the most cloud cover is January (Cloud cover 72).
The months with the least cloud cover are May and September (Cloud cover 55).
Average visibility in September
Metlakatla, 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).
Metlakatla, Alaska, USA
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