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 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
The initiation of September sees an average high-temperature of a still pleasant 72.3°F (22.4°C), showing minor variations from the previous month. San Simeon experiences an average low-temperature reading of 60.1°F (15.6°C) throughout September.Humidity
In San Simeon, the average relative humidity in September is 65%.Rainfall
In San Simeon, in September, it is raining for 1.6 days, with typically 0.12" (3mm) of accumulated precipitation. In San Simeon, during the entire year, the rain falls for 50 days and collects up to 7.4" (188mm) of precipitation.Daylight
In September, the average length of the day is 12h and 23min.On the first day of September, sunrise is at 6:37 am and sunset at 7:31 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 6:49 pm PDT.
Sunshine
In San Simeon, the average sunshine in September is 11.4h.UV index
The average daily maximum UV index in September in San Simeon is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.Note: A maximum high daily UV index of 5 during September translates into the following directions:
Heed the precautions - It is counselled to guard against solar damage. Minimize direct exposure to the Sun during midday when its radiation is at its peak. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Frequently asked questions
What are the temperatures in San Simeon in September?
What is the average humidity in September in San Simeon?
How much does it rain in San Simeon in September?
How many hours of daylight does San Simeon have in September?
When are sunrise and sunset in September in San Simeon?
How long on average sun shines in September in San Simeon?
What is the UV index intensity in September in San Simeon?
Average temperature in September
San Simeon, CA
- Average high temperature in September: 72.3°F
The warmest month (with the highest average high temperature) is August (72.5°F).
The month with the lowest average high temperature is December (58.1°F).
- Average low temperature in September: 60.1°F
The month with the highest average low temperature is September (60.1°F).
The coldest month (with the lowest average low temperature) is February (48.7°F).
Average pressure in September
San Simeon, CA
- Average pressure in September: 29.92"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.92"Hg).
Average wind speed in September
San Simeon, CA
- Average wind speed in September: 8.1mph
The windiest month (with the highest average wind speed) is May (10.6mph).
The calmest month (with the lowest average wind speed) is November (7.3mph).
Average humidity in September
San Simeon, CA
- Average humidity in September: 65%
The month with the highest relative humidity is March (72%).
The month with the lowest relative humidity is October (64%).
Average rainfall in September
San Simeon, CA
- Average rainfall in September: 0.12"
The wettest month (with the highest rainfall) is December (1.5").
The driest months (with the least rainfall) are June and August (0.04").
Average rainfall days in September
San Simeon, CA
- Average rainfall days in September: 1.6 days
The month with the highest number of rainy days is March (9 days).
The month with the least rainy days is August (0.5 days).
Average daylight in September /
Average sunshine in September
San Simeon, CA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in September: 11h and 2min
The months with the most sunshine are June, July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 18min).
Average sunshine days in September
San Simeon, CA
- Average sunshine days in September: 27.4 days
The month with the most sunshine days is August (29.5 days).
The month with the least sunshine days is February (20.3 days).
Average UV index in September
San Simeon, CA
- Average UV index in September: 5
The month with the highest UV index is August (UV index 6).
The months with the lowest UV index are January, February, March, April, November and December (UV index 4).
Average cloud cover in September
San Simeon, CA
- Average cloud cover in September: 7
The month with the most cloud cover is March (Cloud cover 28).
The month with the least cloud cover is August (Cloud cover 6).
Average visibility in September
San Simeon, 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).
San Simeon, California, USA
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