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
As Yachats, Oregon, steps into September, the average high-temperature holds at a still comfortable 66°F (18.9°C), hinting at a minor fluctuation from the prior month. Yachats experiences a consistent average temperature of 51.6°F (10.9°C) throughout the nights in September.Humidity
April through July, September and October, with an average relative humidity of 81%, are the least humid months in Yachats.Rainfall
In Yachats, in September, it is raining for 6.7 days, with typically 0.79" (20mm) of accumulated precipitation. Throughout the year, there are 130.2 rainfall days, and 16.34" (415mm) of precipitation is accumulated.Snowfall
March through December are months without snowfall.Daylight
The average length of the day in September is 12h and 29min.On the first day of the month, sunrise is at 6:40 am and sunset at 7:51 pm. On the last day of September, sunrise is at 7:14 am and sunset at 6:58 pm PDT.
Sunshine
In Yachats, the average sunshine in September is 9.1h.UV index
The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: In September, the UV index of 4 transforms into the following advice:
Undertake precautions - Obligation exists to protect against skin and eye damage. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in September?
What are the least humid months?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Yachats, OR
- Average high temperature in September: 66°F
The warmest month (with the highest average high temperature) is August (67.6°F).
The month with the lowest average high temperature is December (47.8°F).
- Average low temperature in September: 51.6°F
The months with the highest average low temperature are July and August (53.1°F).
The coldest month (with the lowest average low temperature) is December (40.8°F).
Average pressure in September
Yachats, OR
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The months with the lowest atmospheric pressure are August and September (30.02"Hg).
Average wind speed in September
Yachats, OR
- Average wind speed in September: 6.6mph
The windiest month (with the highest average wind speed) is January (9.6mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in September
Yachats, OR
- Average humidity in September: 81%
The months with the highest relative humidity are January, February, March, November and December (83%).
The months with the lowest relative humidity are April, May, June, July, September and October (81%).
Average rainfall in September
Yachats, OR
- Average rainfall in September: 0.79"
The wettest month (with the highest rainfall) is December (2.68").
The driest month (with the least rainfall) is July (0.12").
Average rainfall days in September
Yachats, OR
- Average rainfall days in September: 6.7 days
The month with the highest number of rainy days is March (17.1 days).
The month with the least rainy days is August (3 days).
Average snowfall in September
Yachats, OR
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.31").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Yachats, OR
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (0.6 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
Yachats, OR
- Average daylight in September: 12h and 3min
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 1min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The months with the least sunshine are January and February (Average sunshine: 4h and 0min).
Average sunshine days in September
Yachats, OR
- Average sunshine days in September: 22.2 days
The month with the most sunshine days is July (26.8 days).
The month with the least sunshine days is February (11.5 days).
Average UV index in September
Yachats, 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, November and December (UV index 2).
Average cloud cover in September
Yachats, OR
- Average cloud cover in September: 33
The month with the most cloud cover is February (Cloud cover 59).
The month with the least cloud cover is July (Cloud cover 29).
Average visibility in September
Yachats, OR
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, October, November and December (6mi).
The months with the lowest visibility are August and September (5mi).
Yachats, Oregon, USA
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