September weather forecastStewarts Point, CA
September
Weather in September
The first month of the autumn, September, is still a warm month in Stewarts Point, California, with temperature in the range of an average low of 53.2°F (11.8°C) and an average high of 80.1°F (26.7°C).Temperature
The arrival of September brings an average high-temperature of a still warm 80.1°F (26.7°C), nearly identical to August's 83.5°F (28.6°C). Stewarts Point documents a striking divergence from daytime highs, with an average nighttime temperature of 53.2°F (11.8°C) in September.Humidity
The months with the lowest humidity in Stewarts Point are July and September, with an average relative humidity of 60%.Rainfall
In Stewarts Point, in September, during 2.1 rainfall days, 0.16" (4mm) of precipitation is typically accumulated. Throughout the year, in Stewarts Point, California, there are 83.1 rainfall days, and 21.38" (543mm) of precipitation is accumulated.Snowfall
In Stewarts Point, snow does not fall in January, March through December.Daylight
In Stewarts Point, California, the average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 6:43 am and sunset at 7:43 pm. On the last day of September, sunrise is at 7:09 am and sunset at 6:57 pm PDT.
Sunshine
The average sunshine in September in Stewarts Point, California, is 10.9h.UV index
The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for average individuals.Note: In September, the maximum UV index of 5 suggests these recommendations:
Take measures. Individuals with light skin might experience burns in under 30 minutes. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Stewarts Point, CA
- Average high temperature in September: 80.1°F
The warmest month (with the highest average high temperature) is August (83.5°F).
The month with the lowest average high temperature is December (54.7°F).
- Average low temperature in September: 53.2°F
The month with the highest average low temperature is August (54.1°F).
The coldest month (with the lowest average low temperature) is December (39.9°F).
Average pressure in September
Stewarts Point, CA
- Average pressure in September: 29.92"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.92"Hg).
Average wind speed in September
Stewarts Point, CA
- Average wind speed in September: 5.2mph
The windiest month (with the highest average wind speed) is May (6.8mph).
The calmest month (with the lowest average wind speed) is November (4.9mph).
Average humidity in September
Stewarts Point, CA
- Average humidity in September: 60%
The month with the highest relative humidity is March (78%).
The months with the lowest relative humidity are July and September (60%).
Average rainfall in September
Stewarts Point, CA
- Average rainfall in September: 0.16"
The wettest month (with the highest rainfall) is February (4.49").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in September
Stewarts Point, CA
- Average rainfall days in September: 2.1 days
The month with the highest number of rainy days is March (15 days).
The month with the least rainy days is August (0.9 days).
Average snowfall in September
Stewarts Point, CA
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.2").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Stewarts Point, CA
- 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 January, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
Stewarts Point, CA
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in September: 10h and 54min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in September
Stewarts Point, CA
- Average sunshine days in September: 27.1 days
The months with the most sunshine days are July and August (29.6 days).
The month with the least sunshine days is March (14.6 days).
Average UV index in September
Stewarts Point, CA
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are February, November and December (UV index 3).
Average cloud cover in September
Stewarts Point, CA
- Average cloud cover in September: 10
The month with the most cloud cover is March (Cloud cover 42).
The months with the least cloud cover are July and August (Cloud cover 6).
Average visibility in September
Stewarts Point, CA
- 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).





