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 beginning of September brings a slight decrease in the average high-temperature, transitioning from a moderate 59.4°F (15.2°C) in August to a fresh 52.5°F (11.4°C). Ninilchik sustains a near constant temperature throughout September, with nighttime averages of 43.5°F (6.4°C).Humidity
In September, the average relative humidity is 81%.Rainfall
In Ninilchik, in September, it is raining for 19.7 days, with typically 3.31" (84mm) of accumulated precipitation. In Ninilchik, during the entire year, the rain falls for 167.3 days and collects up to 24.65" (626mm) of precipitation.Snowfall
Months with snowfall in Ninilchik are January through May, September through December. September is the first month it typically snows in Ninilchik. Throughout September, in the average 0.4 snowfall days, it receives 0.35" (9mm) of snow. In Ninilchik, during the entire year, snow falls for 80.3 days and aggregates up to 44.88" (1140mm) of snow.Daylight
The average length of the day in September in Ninilchik, Alaska, is 12h and 49min.On the first day of the month, sunrise is at 7:04 am and sunset at 9:08 pm. On the last day of September, in Ninilchik, sunrise is at 8:12 am and sunset at 7:40 pm AKDT.
Sunshine
In September, the average sunshine is 6.4h.UV index
In September, the average daily maximum UV index in Ninilchik is 2. A UV Index estimate of 2, and below, represents a low health risk 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:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Frequently asked questions
What are September temperatures in Ninilchik?
What is the average humidity in September in Ninilchik?
How many days does it rain in September in Ninilchik?
When does it start snowing in Ninilchik?
How many hours of daylight does Ninilchik have in September?
What time are sunrise and sunset in September in Ninilchik?
How long on average sun shines in September in Ninilchik?
What is the UV index intensity in September in Ninilchik?
Average temperature in September
Ninilchik, AK
- Average high temperature in September: 52.5°F
The warmest month (with the highest average high temperature) is July (61.2°F).
The month with the lowest average high temperature is January (23.4°F).
- Average low temperature in September: 43.5°F
The month with the highest average low temperature is July (50.2°F).
The coldest month (with the lowest average low temperature) is January (17.6°F).
Average pressure in September
Ninilchik, AK
- Average pressure in September: 29.72"Hg
The month with the highest atmospheric pressure is July (29.96"Hg).
The months with the lowest atmospheric pressure are November and December (29.63"Hg).
Average wind speed in September
Ninilchik, AK
- Average wind speed in September: 6.3mph
The windiest months (with the highest average wind speed) are January, November and December (8mph).
The calmest month (with the lowest average wind speed) is July (5.7mph).
Average humidity in September
Ninilchik, AK
- Average humidity in September: 81%
The months with the highest relative humidity are January and February (89%).
The month with the lowest relative humidity is May (70%).
Average rainfall in September
Ninilchik, AK
- Average rainfall in September: 3.31"
The wettest month (with the highest rainfall) is October (3.39").
The driest months (with the least rainfall) are March and May (1.34").
Average rainfall days in September
Ninilchik, AK
- Average rainfall days in September: 19.7 days
The month with the highest number of rainy days is September (19.7 days).
The month with the least rainy days is February (7.4 days).
Average snowfall in September
Ninilchik, AK
- Average snowfall in September: 0.35"
The month with the highest snowfall is December (10.43").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Ninilchik, AK
- Average snowfall days in September: 0.4 days
The month with the highest number of snowfall days is December (15.6 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Ninilchik, AK
- Average daylight in September: 12h and 5min
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 0min).
- Average sunshine in September: 6h and 2min
The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is December (Average sunshine: 3h and 6min).
Average sunshine days in September
Ninilchik, AK
- Average sunshine days in September: 8.9 days
The months with the most sunshine days are January and March (13.2 days).
The month with the least sunshine days is September (8.9 days).
Average UV index in September
Ninilchik, AK
- Average UV index in September: 2
The months with the highest UV index are June and July (UV index 4).
The months with the lowest UV index are February and October (UV index 1).
Average cloud cover in September
Ninilchik, AK
- Average cloud cover in September: 50
The month with the most cloud cover is December (Cloud cover 56).
The months with the least cloud cover are June and July (Cloud cover 46).
Average visibility in September
Ninilchik, AK
- Average visibility in September: 6mi
The months with the highest visibility are May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March, April and December (5mi).
Ninilchik, Alaska, USA
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