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 shift from August to September includes a minor decrease in the average high-temperature, lightly dropping from a refreshing 56.7°F (13.7°C) to a fresh 51.3°F (10.7°C). In Halibut Cove, September is characterized by an average low-temperature of 43.9°F (6.6°C), indicating a minor drop from daytime highs.Humidity
The average relative humidity in September is 82%.Rainfall
In Halibut Cove, in September, during 19.9 rainfall days, 3.86" (98mm) of precipitation is typically accumulated. In Halibut Cove, during the entire year, the rain falls for 183.8 days and collects up to 35.16" (893mm) of precipitation.Snowfall
January through May, September through December are months with snowfall. September is the first month it typically snows. Throughout September, in the average 0.3 snowfall days, it receives 0.39" (10mm) of snow. In Halibut Cove, during the entire year, snow falls for 78.8 days and aggregates up to 48.43" (1230mm) of snow.Daylight
The average length of the day in September is 12h and 49min.On the first day of the month, sunrise is at 7:03 am and sunset at 9:05 pm. On the last day of September, sunrise is at 8:10 am and sunset at 7:39 pm AKDT.
Sunshine
The average sunshine in September is 5.9h.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 ordinary individuals.Note: During September, 2 as the daily maximum UV index converts into the following advice:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September?
What is the average humidity in September?
How much does it rain in September?
When does it start to snow?
How many hours of daylight does Halibut Cove have in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Halibut Cove have in September?
How high is the UV index in September?
Average temperature in September
Halibut Cove, AK
- Average high temperature in September: 51.3°F
The warmest month (with the highest average high temperature) is July (57.7°F).
The month with the lowest average high temperature is January (27°F).
- Average low temperature in September: 43.9°F
The months with the highest average low temperature are July and August (48.7°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).
Average pressure in September
Halibut Cove, 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 (29.6"Hg).
Average wind speed in September
Halibut Cove, AK
- Average wind speed in September: 6.6mph
The windiest month (with the highest average wind speed) is November (8.8mph).
The calmest month (with the lowest average wind speed) is June (5.1mph).
Average humidity in September
Halibut Cove, AK
- Average humidity in September: 82%
The months with the highest relative humidity are January and December (86%).
The month with the lowest relative humidity is May (76%).
Average rainfall in September
Halibut Cove, AK
- Average rainfall in September: 3.86"
The wettest month (with the highest rainfall) is December (4.65").
The driest month (with the least rainfall) is June (1.54").
Average rainfall days in September
Halibut Cove, AK
- Average rainfall days in September: 19.9 days
The month with the highest number of rainy days is September (19.9 days).
The month with the least rainy days is February (9 days).
Average snowfall in September
Halibut Cove, AK
- Average snowfall in September: 0.39"
The month with the highest snowfall is December (11.54").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Halibut Cove, AK
- Average snowfall days in September: 0.3 days
The month with the highest number of snowfall days is December (14.9 days).
The months with the least snowfall days are June and August (0 days).
Average daylight in September /
Average sunshine in September
Halibut Cove, AK
- Average daylight in September: 12h and 5min
The month with the longest days is June (Average daylight: 18h and 36min).
The month with the shortest days is December (Average daylight: 6h and 12min).
- Average sunshine in September: 5h and 5min
The months with the most sunshine are June and July (Average sunshine: 8h and 48min).
The month with the least sunshine is December (Average sunshine: 2h and 36min).
Average sunshine days in September
Halibut Cove, AK
- Average sunshine days in September: 9.1 days
The months with the most sunshine days are March and July (12.3 days).
The month with the least sunshine days is December (8.5 days).
Average UV index in September
Halibut Cove, AK
- Average UV index in September: 2
The month with the highest UV index is July (UV index 4).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Halibut Cove, AK
- Average cloud cover in September: 54
The month with the most cloud cover is December (Cloud cover 62).
The month with the least cloud cover is July (Cloud cover 52).
Average visibility in September
Halibut Cove, AK
- Average visibility in September: 6mi
The months with the highest visibility are May, June, July, September, October and November (6mi).
The months with the lowest visibility are January, February, March, April, August and December (5mi).
Halibut Cove, Alaska, USA
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