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 sea temperature 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
September brings a slight decrease in the average high-temperature, shifting from a pleasant 72.5°F (22.5°C) in August to a refreshing 65.3°F (18.5°C). Bayfield, during the nights of September, experiences an average temperature drop to a fresh 52.5°F (11.4°C).Humidity
In Bayfield, the average relative humidity in September is 78%.Rainfall
In Bayfield, in September, during 12.5 rainfall days, 1.77" (45mm) of precipitation is typically accumulated. In Bayfield, Wisconsin, during the entire year, the rain falls for 127.9 days and collects up to 22.56" (573mm) of precipitation.Snowfall
June through September are months without snowfall.Ocean temperature
In September, the average ocean temperature in Bayfield, Wisconsin, is 57.2°F (14°C).Note: Swimming in 57.2°F (14°C) poses a severe threat. Even short exposure to 55.4°F (13°C) is chilling, and going below 50°F (10°C) can cause breathing irregularities and intense cold shock, based on one's stamina.
Daylight
In Bayfield, Wisconsin, the average length of the day in September is 12h and 32min.On the first day of the month, sunrise is at 6:23 am and sunset at 7:42 pm. On the last day of September, in Bayfield, sunrise is at 7:01 am and sunset at 6:44 pm CDT.
Sunshine
In Bayfield, the average sunshine in September is 8.9h.UV index
In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: In September, an average UV index of 4 transforms into the following instructions:
Adopt protective measures - It is advised to guard against sun damage. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Bayfield?
What is the average humidity in September in Bayfield?
How much does it rain in Bayfield in September?
When it does not snow in Bayfield?
Does it snow in Bayfield in September?
What is the ocean temperature in September in Bayfield?
How many hours of daylight does Bayfield have in September?
When is the sunrise / sunset in September in Bayfield?
How many hours of sunshine does Bayfield have in September?
What is the UV index intensity in September in Bayfield?
Average temperature in September
Bayfield, WI
- Average high temperature in September: 65.3°F
The warmest month (with the highest average high temperature) is August (72.5°F).
The month with the lowest average high temperature is January (20.3°F).
- Average low temperature in September: 52.5°F
The month with the highest average low temperature is August (57.9°F).
The coldest month (with the lowest average low temperature) is January (10.8°F).
Average pressure in September
Bayfield, WI
- Average pressure in September: 30"Hg
The month with the highest atmospheric pressure is February (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in September
Bayfield, WI
- Average wind speed in September: 8.7mph
The windiest months (with the highest average wind speed) are January and December (10.6mph).
The calmest month (with the lowest average wind speed) is July (6.9mph).
Average humidity in September
Bayfield, WI
- Average humidity in September: 78%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is May (75%).
Average rainfall in September
Bayfield, WI
- Average rainfall in September: 1.77"
The wettest months (with the highest rainfall) are May and July (2.56").
The driest months (with the least rainfall) are January and February (1.06").
Average rainfall days in September
Bayfield, WI
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is June (15.9 days).
The month with the least rainy days is February (3.6 days).
Average snowfall in September
Bayfield, WI
- Average snowfall in September: 0"
The month with the highest snowfall is January (6.85").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Bayfield, WI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (22.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in September
Bayfield, WI
- Average sea temperature in September: 57°F
The best month for swimming (with the highest average sea temperature) is August (61°F).
The coldest months (with the lowest average sea temperature) are February, March and April (36°F).
Average daylight in September /
Average sunshine in September
Bayfield, WI
- Average daylight in September: 12h and 3min
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 5min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 2h and 24min).
Average sunshine days in September
Bayfield, WI
- Average sunshine days in September: 15.1 days
The month with the most sunshine days is September (15.1 days).
The month with the least sunshine days is December (8.7 days).
Average UV index in September
Bayfield, WI
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in September
Bayfield, WI
- Average cloud cover in September: 35
The month with the most cloud cover is January (Cloud cover 76).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in September
Bayfield, WI
- 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).
Bayfield, Wisconsin, USA
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