September weather forecastBremer, WA
September
Weather in September
September, the first month of the autumn in Bremer, is still a pleasant month, with an average temperature ranging between max 69.1°F (20.6°C) and min 45°F (7.2°C).Temperature
September's onset introduces a mild reduction in the average high-temperature, from a moderately hot 75.9°F (24.4°C) in August to an agreeable 69.1°F (20.6°C). In September, the nighttime temperature plummets remarkably from the daily apex to a steady average of 45°F (7.2°C).Humidity
In September, the average relative humidity is 76%.Rainfall
In Bremer, in September, it is raining for 11.8 days, with typically 1.93" (49mm) of accumulated precipitation. Throughout the year, there are 178.8 rainfall days, and 40.47" (1028mm) of precipitation is accumulated.Snowfall
In Bremer, snow does not fall in May through October.Daylight
In Bremer, the average length of the day in September is 12h and 32min.On the first day of September, sunrise is at 6:30 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 6:50 pm PDT.
Sunshine
The average sunshine in September is 8.7h.UV index
In September, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum daily UV index of 3 during September translates into the following directions:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Stay sun-safe with clothing that is both closely woven and worn loosely. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Bremer, WA
- Average high temperature in September: 69.1°F
The warmest month (with the highest average high temperature) is August (75.9°F).
The month with the lowest average high temperature is December (41.2°F).
- Average low temperature in September: 45°F
The month with the highest average low temperature is August (47.3°F).
The coldest month (with the lowest average low temperature) is December (30.7°F).
Average pressure in September
Bremer, WA
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).
Average wind speed in September
Bremer, WA
- Average wind speed in September: 3.7mph
The windiest month (with the highest average wind speed) is January (5.3mph).
The calmest month (with the lowest average wind speed) is August (3.6mph).
Average humidity in September
Bremer, WA
- Average humidity in September: 76%
The month with the highest relative humidity is February (88%).
The month with the lowest relative humidity is July (71%).
Average rainfall in September
Bremer, WA
- Average rainfall in September: 1.93"
The wettest month (with the highest rainfall) is January (6.46").
The driest month (with the least rainfall) is July (0.43").
Average rainfall days in September
Bremer, WA
- Average rainfall days in September: 11.8 days
The month with the highest number of rainy days is March (20.3 days).
The month with the least rainy days is July (6.3 days).
Average snowfall in September
Bremer, WA
- Average snowfall in September: 0"
The month with the highest snowfall is January (5.51").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Bremer, WA
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is February (6 days).
The months with the least snowfall days are June, July, August and October (0 days).
Average daylight in September /
Average sunshine in September
Bremer, WA
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in September: 8h and 42min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The months with the least sunshine are January and February (Average sunshine: 3h and 48min).
Average sunshine days in September
Bremer, WA
- Average sunshine days in September: 17.4 days
The month with the most sunshine days is August (23.2 days).
The month with the least sunshine days is February (8.2 days).
Average UV index in September
Bremer, WA
- Average UV index in September: 3
The month with the highest UV index is July (UV index 5).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in September
Bremer, WA
- Average cloud cover in September: 40
The month with the most cloud cover is March (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in September
Bremer, WA
- Average visibility in September: 5mi
The months with the highest visibility are July, August and September (5mi).
The months with the lowest visibility are January, February, March, April, May, June, October, November and December (4mi).
