September weather forecastSeaforth, MN
September
Weather in September
The first month of the autumn, September, is still a pleasant month in Seaforth, Minnesota, with temperature in the range of an average low of 52.9°F (11.6°C) and an average high of 72.9°F (22.7°C).Temperature
With the onset of September, Seaforth's average high-temperature slightly adjusts, moderately receding from August's moderately hot 79.2°F (26.2°C) to a pleasant 72.9°F (22.7°C). The average temperature in Seaforth during September nights dips to a cool 52.9°F (11.6°C).Humidity
In September, the average relative humidity in Seaforth is 71%.Rainfall
In Seaforth, in September, it is raining for 9.5 days, with typically 1.3" (33mm) of accumulated precipitation. Throughout the year, there are 98 rainfall days, and 14.61" (371mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall.Daylight
In September, the average length of the day in Seaforth, Minnesota, is 12h and 30min.On the first day of the month, sunrise is at 6:44 am and sunset at 7:57 pm. On the last day of September, in Seaforth, Minnesota, sunrise is at 7:18 am and sunset at 7:03 pm CDT.
Sunshine
The average sunshine in September is 9h.UV index
The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum UV index of 4 during September translates into these guidelines:
Take precautions - Protection against sunburn is recommended. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Seaforth, MN
- Average high temperature in September: 72.9°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (20.3°F).
- Average low temperature in September: 52.9°F
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (6.6°F).
Average pressure in September
Seaforth, MN
- Average pressure in September: 29.99"Hg
The months with the highest atmospheric pressure are January and February (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in September
Seaforth, MN
- Average wind speed in September: 8.6mph
The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (7.3mph).
Average humidity in September
Seaforth, MN
- Average humidity in September: 71%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is May (67%).
Average rainfall in September
Seaforth, MN
- Average rainfall in September: 1.3"
The wettest month (with the highest rainfall) is June (2.32").
The driest month (with the least rainfall) is January (0.39").
Average rainfall days in September
Seaforth, MN
- Average rainfall days in September: 9.5 days
The month with the highest number of rainy days is June (15.6 days).
The month with the least rainy days is February (1.3 days).
Average snowfall in September
Seaforth, MN
- Average snowfall in September: 0"
The month with the highest snowfall is February (3.19").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Seaforth, MN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (10.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Seaforth, MN
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in September: 9h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in September
Seaforth, MN
- Average sunshine days in September: 19 days
The month with the most sunshine days is October (21.7 days).
The month with the least sunshine days is June (12.9 days).
Average UV index in September
Seaforth, MN
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in September
Seaforth, MN
- Average cloud cover in September: 31
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in September
Seaforth, MN
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).





