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 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 marks a gentle change in average high-temperature, declining from August's pleasant 69.4°F (20.8°C) to a comfortable 63.5°F (17.5°C). In Pori, September nights cool down to an average of 52.7°F (11.5°C).Humidity
In Pori, the average relative humidity in September is 79%.Rainfall
In Pori, during September, the rain falls for 13.3 days and regularly aggregates up to 1.85" (47mm) of precipitation. In Pori, during the entire year, the rain falls for 122.6 days and collects up to 22.56" (573mm) of precipitation.Snowfall
In Pori, snow does not fall in June through September.Daylight
In Pori, the average length of the day in September is 12h and 32min.On the first day of the month, sunrise is at 7:16 am and sunset at 8:34 pm. On the last day of September, sunrise is at 7:54 am and sunset at 7:36 pm EDT.
Sunshine
In Pori, the average sunshine in September is 7.7h.UV index
In Pori, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.Note: An average UV index of 4 in September transforms into this advice:
Heed the precautions - Suggestions to avoid sunburn are made. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Frequently asked questions
What is the average September temperature in Pori?
What is the average humidity in September in Pori?
How many days does it rain in September in Pori?
When it does not snow in Pori?
Does it snow in Pori in September?
How many hours of daylight does Pori have in September?
What time are sunrise and sunset in September in Pori?
How long on average sun shines in September in Pori?
How high is the UV index in September in Pori?
Average temperature in September
Pori, MI
- Average high temperature in September: 63.5°F
The warmest month (with the highest average high temperature) is August (69.4°F).
The month with the lowest average high temperature is January (22.3°F).
- Average low temperature in September: 52.7°F
The month with the highest average low temperature is August (58.1°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).
Average pressure in September
Pori, MI
- Average pressure in September: 30"Hg
The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Pori, MI
- Average wind speed in September: 9.6mph
The windiest month (with the highest average wind speed) is January (12.6mph).
The calmest month (with the lowest average wind speed) is June (7.6mph).
Average humidity in September
Pori, MI
- Average humidity in September: 79%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is May (75%).
Average rainfall in September
Pori, MI
- Average rainfall in September: 1.85"
The wettest months (with the highest rainfall) are April, June, August and October (2.28").
The driest month (with the least rainfall) is February (1.22").
Average rainfall days in September
Pori, MI
- Average rainfall days in September: 13.3 days
The month with the highest number of rainy days is October (14.6 days).
The month with the least rainy days is February (2.5 days).
Average snowfall in September
Pori, MI
- Average snowfall in September: 0"
The month with the highest snowfall is December (6.65").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Pori, MI
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is January (22.5 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Pori, MI
- 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: 7h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 1h and 36min).
Average sunshine days in September
Pori, MI
- Average sunshine days in September: 14.3 days
The month with the most sunshine days is July (15.5 days).
The month with the least sunshine days is January (5.6 days).
Average UV index in September
Pori, MI
- Average UV index in September: 4
The months with the highest UV index are July and August (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in September
Pori, MI
- Average cloud cover in September: 37
The month with the most cloud cover is January (Cloud cover 84).
The months with the least cloud cover are July and August (Cloud cover 30).
Average visibility in September
Pori, MI
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, November and December (5mi).
Pori, Michigan, USA
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