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
September is the warmest month of the year, registering average temperatures as high as 74.7°F (23.7°C) and as low as 60.1°F (15.6°C).Humidity
In Lompoc, the average relative humidity in September is 67%.Rainfall
In Lompoc, in September, it is raining for 2 days, with typically 0.08" (2mm) of accumulated precipitation. Throughout the year, in Lompoc, California, there are 43.4 rainfall days, and 7.09" (180mm) of precipitation is accumulated.Daylight
In Lompoc, the average length of the day in September is 12h and 23min.On the first day of the month, sunrise is at 6:35 am and sunset at 7:27 pm. On the last day of September, sunrise is at 6:56 am and sunset at 6:46 pm PDT.
Sunshine
In Lompoc, the average sunshine in September is 11.2h.UV index
In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: In September, the maximum UV index of 5 translates into these guidelines:
Undertake precautions - Guarding against sun damage is counselled. It's recommended to limit sun exposure when its radiation is at its peak during midday. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the hottest time of year in Lompoc?
What is the usual temperature for Lompoc in September?
What is the average humidity in September in Lompoc?
How much does it rain in Lompoc in September?
What is the average length of the day in September in Lompoc?
When are sunrise and sunset in September in Lompoc?
How long on average sun shines in September in Lompoc?
How high is the UV index in September in Lompoc?
Average temperature in September
Lompoc, CA
- Average high temperature in September: 74.7°F
The warmest month (with the highest average high temperature) is September (74.7°F).
The month with the lowest average high temperature is December (61.3°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 (49.1°F).
Average pressure in September
Lompoc, 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 and September (29.91"Hg).
Average wind speed in September
Lompoc, CA
- Average wind speed in September: 8.8mph
The windiest month (with the highest average wind speed) is May (10.6mph).
The calmest month (with the lowest average wind speed) is January (7.9mph).
Average humidity in September
Lompoc, CA
- Average humidity in September: 67%
The months with the highest relative humidity are June, July and August (71%).
The month with the lowest relative humidity is November (63%).
Average rainfall in September
Lompoc, CA
- Average rainfall in September: 0.08"
The wettest month (with the highest rainfall) is January (1.5").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in September
Lompoc, CA
- Average rainfall days in September: 2 days
The month with the highest number of rainy days is March (7.3 days).
The month with the least rainy days is June (1.2 days).
Average daylight in September /
Average sunshine in September
Lompoc, CA
- Average daylight in September: 12h and 2min
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 1min
The months with the most sunshine are June, July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 6h and 24min).
Average sunshine days in September
Lompoc, CA
- Average sunshine days in September: 27.3 days
The month with the most sunshine days is August (28.6 days).
The month with the least sunshine days is February (21.3 days).
Average UV index in September
Lompoc, 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
Lompoc, CA
- Average cloud cover in September: 9
The month with the most cloud cover is March (Cloud cover 26).
The month with the least cloud cover is September (Cloud cover 9).
Average visibility in September
Lompoc, 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).
Lompoc, California, USA
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