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
Shifting into September, Coos Bay records an average high-temperature of a still comfortable 65.8°F (18.8°C), presenting minor fluctuations compared to the previous month. Throughout September, an average low-temperature of 51.6°F (10.9°C) is expected in Coos Bay.Humidity
The average relative humidity in September in Coos Bay, Oregon, is 82%.Rainfall
In Coos Bay, in September, during 7.1 rainfall days, 1.1" (28mm) of precipitation is typically accumulated. In Coos Bay, Oregon, during the entire year, the rain falls for 153 days and collects up to 33.5" (851mm) of precipitation.Snowfall
March through October and December are months without snowfall in Coos Bay.Daylight
The average length of the day in September is 12h and 29min.On the first day of September, sunrise is at 6:41 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 6:59 pm PDT.
Sunshine
In September, the average sunshine is 9.6h.UV index
The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum daily UV index, 4 in September, converts into the following recommendations:
Put precautions into practice - Ensuring skin and eye safety is a necessity. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Frequently asked questions
What are the temperatures in Coos Bay in September?
What is the average humidity in September in Coos Bay?
How much does it rain in Coos Bay in September?
When it does not snow in Coos Bay?
How many hours of daylight does Coos Bay have in September?
When is the sunrise / sunset in September in Coos Bay?
How long on average sun shines in September in Coos Bay?
What is the UV index intensity in September in Coos Bay?
Average temperature in September
Coos Bay, OR
- Average high temperature in September: 65.8°F
The warmest month (with the highest average high temperature) is August (66.9°F).
The month with the lowest average high temperature is December (49.1°F).
- Average low temperature in September: 51.6°F
The month with the highest average low temperature is August (52.3°F).
The coldest months (with the lowest average low temperature) are February and December (41.7°F).
Average pressure in September
Coos Bay, OR
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is September (30.01"Hg).
Average wind speed in September
Coos Bay, OR
- Average wind speed in September: 7.1mph
The windiest month (with the highest average wind speed) is March (9.1mph).
The calmest month (with the lowest average wind speed) is August (6.9mph).
Average humidity in September
Coos Bay, OR
- Average humidity in September: 82%
The months with the highest relative humidity are February and August (84%).
The months with the lowest relative humidity are April and October (81%).
Average rainfall in September
Coos Bay, OR
- Average rainfall in September: 1.1"
The wettest month (with the highest rainfall) is December (5.87").
The driest month (with the least rainfall) is July (0.16").
Average rainfall days in September
Coos Bay, OR
- Average rainfall days in September: 7.1 days
The month with the highest number of rainy days is March (19.2 days).
The month with the least rainy days is August (3.5 days).
Average snowfall in September
Coos Bay, OR
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.2").
The months with the least snowfall are March, April, May, June, July, August, September, October and December (0").
Average snowfall days in September
Coos Bay, OR
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Coos Bay, OR
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in September: 9h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The months with the least sunshine are January and February (Average sunshine: 4h and 24min).
Average sunshine days in September
Coos Bay, OR
- Average sunshine days in September: 21.6 days
The month with the most sunshine days is July (25.7 days).
The month with the least sunshine days is February (9.7 days).
Average UV index in September
Coos Bay, OR
- 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 February and December (UV index 2).
Average cloud cover in September
Coos Bay, OR
- Average cloud cover in September: 28
The month with the most cloud cover is February (Cloud cover 56).
The months with the least cloud cover are July and September (Cloud cover 28).
Average visibility in September
Coos Bay, OR
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
Coos Bay, Oregon, USA
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