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 sea temperature 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
Ventura's warmest season falls during August and September, averaging a high-temperature of 74.3°F (23.5°C).Humidity
The average relative humidity in September in Ventura is 62%.Rainfall
In Ventura, during September, the rain falls for 3.1 days and regularly aggregates up to 0.2" (5mm) of precipitation. Throughout the year, in Ventura, California, there are 47.8 rainfall days, and 6.97" (177mm) of precipitation is accumulated.Ocean temperature
In Ventura, the average seawater temperature in September is 63.3°F (17.4°C).Note: Most people do not take pleasure in swimming in water at 63.3°F (17.4°C). The difficulty of managing breathing increases as the water temperature dips from 69.8°F (21°C) to 59°F (15°C).
Daylight
In Ventura, the average length of the day in September is 12h and 22min.On the first day of the month, sunrise is at 6:30 am and sunset at 7:22 pm. On the last day of September, in Ventura, sunrise is at 6:51 am and sunset at 6:41 pm PDT.
Sunshine
In September, the average sunshine in Ventura, California, is 10.9h.UV index
The average daily maximum UV index in September in Ventura is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: The average daily UV index of 5 in September transforms into the following instructions:
Undertake precautions - Guarding against sun damage is counselled. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the hottest in Ventura?
What are September temperatures in Ventura?
What is the average humidity in September in Ventura?
How much does it rain in Ventura in September?
What is the ocean temperature in September in Ventura?
What is the average length of the day in September in Ventura?
When is the sunrise / sunset in September in Ventura?
How many hours of sunshine does Ventura have in September?
What is the UV index reading in September in Ventura?
Average temperature in September
Ventura, CA
- Average high temperature in September: 74.3°F
The warmest months (with the highest average high temperature) are August and September (74.3°F).
The month with the lowest average high temperature is February (59°F).
- Average low temperature in September: 62.2°F
The month with the highest average low temperature is August (62.6°F).
The coldest month (with the lowest average low temperature) is February (48.9°F).
Average pressure in September
Ventura, CA
- Average pressure in September: 29.9"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is September (29.9"Hg).
Average wind speed in September
Ventura, CA
- Average wind speed in September: 5mph
The windiest month (with the highest average wind speed) is April (7.1mph).
The calmest months (with the lowest average wind speed) are August and September (5mph).
Average humidity in September
Ventura, CA
- Average humidity in September: 62%
The months with the highest relative humidity are June and July (69%).
The month with the lowest relative humidity is November (56%).
Average rainfall in September
Ventura, CA
- Average rainfall in September: 0.2"
The wettest month (with the highest rainfall) is January (1.34").
The driest month (with the least rainfall) is June (0.12").
Average rainfall days in September
Ventura, CA
- Average rainfall days in September: 3.1 days
The month with the highest number of rainy days is March (6 days).
The month with the least rainy days is August (2.1 days).
Average sea temperature in September
Ventura, CA
- Average sea temperature in September: 63.3°F
The best month for swimming (with the highest average sea temperature) is August (64.1°F).
The coldest month (with the lowest average sea temperature) is April (56.7°F).
Average daylight in September /
Average sunshine in September
Ventura, 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: 10h and 5min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The months with the least sunshine are January, February and December (Average sunshine: 6h and 48min).
Average sunshine days in September
Ventura, CA
- Average sunshine days in September: 21.5 days
The month with the most sunshine days is October (26 days).
The month with the least sunshine days is July (20.4 days).
Average UV index in September
Ventura, CA
- Average UV index in September: 5
The month with the highest UV index is August (UV index 6).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in September
Ventura, CA
- Average cloud cover in September: 7
The month with the most cloud cover is March (Cloud cover 22).
The month with the least cloud cover is August (Cloud cover 5).
Average visibility in September
Ventura, 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).
Ventura, California, USA
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