September weather forecastBuellton, CA
September
Weather in September
September, the first month of the autumn in Buellton, is still a warm month, with an average temperature fluctuating between 61.2°F (16.2°C) and 77.5°F (25.3°C).Temperature
Buellton's September showcases an average high-temperature of a still warm 77.5°F (25.3°C), hardly distinct from August's 78.8°F (26°C). Nightly temperatures drop to an average low of 61.2°F (16.2°C) in September.Humidity
In September, the average relative humidity is 59%.Rainfall
In September, the rain falls for 1.6 days. Throughout September, 0.08" (2mm) of precipitation is accumulated. In Buellton, during the entire year, the rain falls for 37.7 days and collects up to 5.98" (152mm) of precipitation.Daylight
In September, the average length of the day is 12h and 23min.On the first day of September, sunrise is at 6:34 am and sunset at 7:26 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 6:45 pm PDT.
Sunshine
The average sunshine in September is 11.3h.UV index
In September, the average daily maximum UV index in Buellton is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: A typical high UV index of 5 in September suggests the following recommendations:
Act with care - The suggestion to avoid sunburn is emphasized. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Buellton, CA
- Average high temperature in September: 77.5°F
The warmest month (with the highest average high temperature) is August (78.8°F).
The month with the lowest average high temperature is December (61.2°F).
- Average low temperature in September: 61.2°F
The month with the highest average low temperature is September (61.2°F).
The coldest month (with the lowest average low temperature) is February (47.8°F).
Average pressure in September
Buellton, CA
- Average pressure in September: 29.91"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.91"Hg).
Average wind speed in September
Buellton, CA
- Average wind speed in September: 7.2mph
The windiest month (with the highest average wind speed) is May (8.9mph).
The calmest month (with the lowest average wind speed) is July (6.7mph).
Average humidity in September
Buellton, CA
- Average humidity in September: 59%
The month with the highest relative humidity is March (67%).
The months with the lowest relative humidity are October and November (58%).
Average rainfall in September
Buellton, CA
- Average rainfall in September: 0.08"
The wettest month (with the highest rainfall) is January (1.38").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in September
Buellton, CA
- Average rainfall days in September: 1.6 days
The month with the highest number of rainy days is March (6.2 days).
The month with the least rainy days is August (0.8 days).
Average daylight in September /
Average sunshine in September
Buellton, CA
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in September: 11h and 18min
The months with the most sunshine are June and July (Average sunshine: 12h and 0min).
The month with the least sunshine is February (Average sunshine: 6h and 36min).
Average sunshine days in September
Buellton, CA
- Average sunshine days in September: 27.9 days
The month with the most sunshine days is August (29 days).
The month with the least sunshine days is February (22.3 days).
Average UV index in September
Buellton, CA
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in September
Buellton, CA
- Average cloud cover in September: 6
The month with the most cloud cover is March (Cloud cover 24).
The month with the least cloud cover is August (Cloud cover 5).
Average visibility in September
Buellton, 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).
