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
The temperature hits its peak in July and September, recording an average high-temperature of 80.1°F (26.7°C).Humidity
The months with the lowest humidity are September and October, with an average relative humidity of 60%.Rainfall
In Rodeo, in September, during 2.1 rainfall days, 0.08" (2mm) of precipitation is typically accumulated. Throughout the year, in Rodeo, there are 56.9 rainfall days, and 4.88" (124mm) of precipitation is accumulated.Ocean temperature
The month with the warmest seawater is September, with an average ocean temperature of 57°F (13.9°C).Note: Staying in 57°F (13.9°C) waters for just a few moments at 55.4°F (13°C) can be harrowing, and below 50°F (10°C) poses breathing and cold shock risks, depending on individual tolerance.
Daylight
In September, the average length of the day is 12h and 25min.On the first day of September, sunrise is at 6:39 am and sunset at 7:37 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 6:52 pm PDT.
Sunshine
In September, the average sunshine is 11.1h.UV index
In Rodeo, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: In September, the maximum UV index of 5 suggests this advice:
Make use of precautions - Shielding skin and eyes from injury is a requirement. The Sun's radiation is especially intense around midday; try to stay in shade during this period. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Frequently asked questions
What part of the year is the hottest in Rodeo?
What is the temperature in September in Rodeo?
What is the least humid month in Rodeo?
What is the average humidity in September in Rodeo?
How many days does it rain in September in Rodeo?
What is the month with the warmest ocean in Rodeo?
What is the water temperature in September in Rodeo?
What is the average length of the day in September in Rodeo?
When is the sunrise / sunset in September in Rodeo?
How many hours of sunshine does Rodeo have in September?
What is the UV index reading in September in Rodeo?
Average temperature in September
Rodeo, CA
- Average high temperature in September: 80.1°F
The warmest months (with the highest average high temperature) are July and September (80.1°F).
The month with the lowest average high temperature is December (55.4°F).
- Average low temperature in September: 56.3°F
The month with the highest average low temperature is August (56.5°F).
The coldest month (with the lowest average low temperature) is January (43°F).
Average pressure in September
Rodeo, CA
- Average pressure in September: 29.92"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Rodeo, CA
- Average wind speed in September: 5.5mph
The windiest month (with the highest average wind speed) is May (7.1mph).
The calmest month (with the lowest average wind speed) is November (4.6mph).
Average humidity in September
Rodeo, CA
- Average humidity in September: 60%
The month with the highest relative humidity is March (75%).
The months with the lowest relative humidity are September and October (60%).
Average rainfall in September
Rodeo, CA
- Average rainfall in September: 0.08"
The wettest month (with the highest rainfall) is February (1.14").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in September
Rodeo, CA
- Average rainfall days in September: 2.1 days
The month with the highest number of rainy days is March (10.2 days).
The month with the least rainy days is August (0.9 days).
Average sea temperature in September
Rodeo, CA
- Average sea temperature in September: 57°F
The best month for swimming (with the highest average sea temperature) is September (57°F).
The coldest month (with the lowest average sea temperature) is April (52.6°F).
Average daylight in September /
Average sunshine in September
Rodeo, CA
- Average daylight in September: 12h and 2min
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 36min).
- Average sunshine in September: 11h and 1min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days in September
Rodeo, CA
- Average sunshine days in September: 26 days
The month with the most sunshine days is July (27.2 days).
The month with the least sunshine days is March (18.8 days).
Average UV index in September
Rodeo, CA
- Average UV index in September: 5
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in September
Rodeo, CA
- Average cloud cover in September: 11
The month with the most cloud cover is March (Cloud cover 37).
The month with the least cloud cover is July (Cloud cover 9).
Average visibility in September
Rodeo, 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).
Rodeo, California, USA
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