September weather forecastSouth Bend, WA
September
Weather in September
September, the first month of the autumn in South Bend, is also an enjoyable month, with an average temperature ranging between max 65.3°F (18.5°C) and min 50.9°F (10.5°C).Temperature
September's advent presents an average high-temperature of an enjoyable 65.3°F (18.5°C), indicating a slight variation from the conditions of the previous month. During September, the temperature tends to dip to an average of 50.9°F (10.5°C) at night.Humidity
In South Bend, the average relative humidity in September is 83%.Rainfall
In South Bend, Washington, in September, during 12.6 rainfall days, 2.09" (53mm) of precipitation is typically accumulated. Throughout the year, in South Bend, Washington, there are 194.8 rainfall days, and 44.65" (1134mm) of precipitation is accumulated.Snowfall
April through October and December are months without snowfall in South Bend.Daylight
The average length of the day in September in South Bend is 12h and 32min.On the first day of September in South Bend, sunrise is at 6:36 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 6:56 pm PDT.
Sunshine
The average sunshine in September is 8.4h.UV index
In South Bend, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: In September, the maximum UV index of 4 transforms into these recommendations:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. When the Sun is at its strongest around midday, find shade and limit exposure. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
South Bend, WA
- Average high temperature in September: 65.3°F
The warmest month (with the highest average high temperature) is August (69.3°F).
The month with the lowest average high temperature is December (44.4°F).
- Average low temperature in September: 50.9°F
The month with the highest average low temperature is August (52.3°F).
The coldest month (with the lowest average low temperature) is February (37.4°F).
Average pressure in September
South Bend, WA
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is July (30.08"Hg).
The month with the lowest atmospheric pressure is March (30.01"Hg).
Average wind speed in September
South Bend, WA
- Average wind speed in September: 5.3mph
The windiest month (with the highest average wind speed) is January (8mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in September
South Bend, WA
- Average humidity in September: 83%
The month with the highest relative humidity is November (87%).
The month with the lowest relative humidity is July (80%).
Average rainfall in September
South Bend, WA
- Average rainfall in September: 2.09"
The wettest month (with the highest rainfall) is December (7.05").
The driest month (with the least rainfall) is July (0.51").
Average rainfall days in September
South Bend, WA
- Average rainfall days in September: 12.6 days
The month with the highest number of rainy days is March (21.6 days).
The month with the least rainy days is August (7.5 days).
Average snowfall in September
South Bend, WA
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.42").
The months with the least snowfall are April, May, June, July, August, September, October and December (0").
Average snowfall days in September
South Bend, WA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
South Bend, 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 24min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in September
South Bend, WA
- Average sunshine days in September: 14.6 days
The month with the most sunshine days is August (19.2 days).
The month with the least sunshine days is February (7.2 days).
Average UV index in September
South Bend, WA
- Average UV index in September: 4
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
South Bend, WA
- Average cloud cover in September: 41
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is July (Cloud cover 38).
Average visibility in September
South Bend, WA
- Average visibility in September: 5mi
The months with the highest visibility are March and April (6mi).
The month with the lowest visibility is August (4mi).
