United StatesAverage weather for Sitka in September
It's cool to moderate in September in Sitka with an average temperature of 15°C. Temperatures this month range from a low of 14°C to a high of 17°C. At night, you can expect temperatures between 9°C and 12°C.
Start of September
The month of September starts in Sitka with cool temps, averaging around 17°C during the day and nights around 12°C. There are plenty of days with a good chance of precipitation.
Mid September
By mid-September, daytime temps drop to around 16°C, with nights around 11°C. There’s a high chance of precipitation during this time.
End of September
By the end of September, the average daytime temperature in Sitka is around 15°C, while nighttime temps are about 10°C. There’s a significant chance of many days with precipitation.
In September, there is an average of 303 mm of precipitation, spread over 19 days. The wind speed is around 2 Bft, mostly coming from the South.
Sitka in September |
New York | ||
|---|---|---|---|
 Average temperature |
15°C | 27°C | |
 Max. temperature |
17°C | 31°C | |
| Min. temperature |
14°C | -5°C | |
 Total precipitation |
303 mm | 57 mm | |
| Rainy days |
19 days | 9 days | |
August
UV index
The UV index is a maximum of 5 this month. That's a moderate value on the intensity scale of 1 to 11. Unprotected skin can burn in about 30 minutes.
Is September a good time to visit Sitka?
Looking for sun and warm weather? September isn’t a good month to be in Sitka. The temperatures are too low for a warm stay this month.
Temperature records
With 23°C in 2023, Sitka reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 8°C in 2015. The extreme nighttime temperatures ranged from a lowest recorded value of 4°C to a highest value of 17°C.
Check out the climate of Sitka for all months and discover the best travel time
Daily Temperature in September in Sitka
This chart shows the average daily high and low temperatures in September for Sitka, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.
Daily Precipitation in September in Sitka
The chart below shows the average daily precipitation in September for Sitka, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for September, you can expect about 19 days of precipitation in Sitka.
Daily UV index in September in Sitka
This chart shows the average daily UV index in September in Sitka, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in September in Sitka over the years
This chart shows the average temperature in September in Sitka, measured in degrees Celsius, over the past few years.
Total precipitation in September in Sitka over the years
This chart shows the average precipitation in September in Sitka, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Daily weather in September for Sitka
Click on any day in September to get detailed info about the usual weather on that day in Sitka. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in September in Sitka
Have you been to Sitka in September?
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Average weather in Sitka by month
Click on a month below to see detailed weather info for Sitka. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
