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
Oysterville experiences a transition to a still comfortable 62.2°F (16.8°C) in average high-temperatures with the arrival of September, not greatly differing from August's 63.3°F (17.4°C). A slight dip in temperature to a still refreshing 55.4°F (13°C) marks the average nights during September.Humidity
The average relative humidity in September is 83%.Rainfall
In September, the rain falls for 11.3 days. Throughout September, 1.85" (47mm) of precipitation is accumulated. In Oysterville, during the entire year, the rain falls for 198.3 days and collects up to 45.43" (1154mm) of precipitation.Snowfall
In Oysterville, snow does not fall in April through October and December.Daylight
In September, the average length of the day is 12h and 32min.On the first day of September, sunrise is at 6:37 am and sunset at 7:54 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 6:57 pm PDT.
Sunshine
In September, the average sunshine is 8.4h.UV index
May through September, with an average maximum UV index of 4, are months with the highest UV index. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In September, the maximum UV index of 4 transforms into these recommendations:
Make use of precautions - It is urged to ward off sun damage. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
How many hours of daylight does Oysterville have in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Oysterville have in September?
What is the month with the highest UV index?
How high is the UV index in September?
Average temperature in September
Oysterville, WA
- Average high temperature in September: 62.2°F
The warmest month (with the highest average high temperature) is August (63.3°F).
The month with the lowest average high temperature is December (46.4°F).
- Average low temperature in September: 55.4°F
The month with the highest average low temperature is August (55.9°F).
The coldest month (with the lowest average low temperature) is December (41.2°F).
Average pressure in September
Oysterville, 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
Oysterville, WA
- Average wind speed in September: 8.1mph
The windiest month (with the highest average wind speed) is January (11.9mph).
The calmest month (with the lowest average wind speed) is August (7.4mph).
Average humidity in September
Oysterville, WA
- Average humidity in September: 83%
The month with the highest relative humidity is August (86%).
The months with the lowest relative humidity are February, March, April, October and December (81%).
Average rainfall in September
Oysterville, WA
- Average rainfall in September: 1.85"
The wettest month (with the highest rainfall) is December (7.28").
The driest month (with the least rainfall) is July (0.55").
Average rainfall days in September
Oysterville, WA
- Average rainfall days in September: 11.3 days
The month with the highest number of rainy days is March (22.5 days).
The month with the least rainy days is August (8 days).
Average snowfall in September
Oysterville, WA
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.91").
The months with the least snowfall are April, May, June, July, August, September, October and December (0").
Average snowfall days in September
Oysterville, WA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (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
Oysterville, WA
- 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 2min
The month with the most sunshine is July (Average sunshine: 9h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in September
Oysterville, WA
- Average sunshine days in September: 17 days
The month with the most sunshine days is August (19.1 days).
The month with the least sunshine days is March (7.1 days).
Average UV index in September
Oysterville, WA
- Average UV index in September: 4
The months with the highest UV index are May, June, July, August and September (UV index 4).
The months with the lowest UV index are February, November and December (UV index 2).
Average cloud cover in September
Oysterville, WA
- Average cloud cover in September: 39
The month with the most cloud cover is January (Cloud cover 63).
The months with the least cloud cover are August and September (Cloud cover 39).
Average visibility in September
Oysterville, WA
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Oysterville, Washington, USA
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