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
September
Weather in September
Temperature
A mild drop in Calipatria's average high-temperature is observed in September, transitioning from a scorching 105.4°F (40.8°C) in August to a fiery hot 98.4°F (36.9°C). The low-temperature average for Calipatria during September stands at a moderately hot 79.7°F (26.5°C).Humidity
The average relative humidity in September is 26%.Rainfall
In Calipatria, in September, during 4.5 rainfall days, 0.51" (13mm) of precipitation is typically accumulated. In Calipatria, during the entire year, the rain falls for 34.3 days and collects up to 3.46" (88mm) of precipitation.Daylight
The average length of the day in September is 12h and 22min.On the first day of September, sunrise is at 6:16 am and sunset at 7:06 pm. On the last day of the month, sunrise is at 6:36 am and sunset at 6:27 pm PDT.
Sunshine
In September, the average sunshine is 10.2h.UV index
In September, the average daily maximum UV index is 8. A UV Index reading of 8 to 10 represents a very high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: In September, a regular UV index of 8 translates into these guidelines:
Don't neglect protection; skin and eyes can be burned swiftly if left exposed. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in September?
What is the average humidity in September?
How much does it rain in September?
What is the average length of the day in September in Calipatria?
What time are sunrise and sunset in September in Calipatria?
How long on average sun shines in September?
What is the UV index intensity in September?
Average temperature in September
Calipatria, CA
- Average high temperature in September: 98.4°F
The warmest month (with the highest average high temperature) is July (105.8°F).
The month with the lowest average high temperature is December (65.8°F).
- Average low temperature in September: 79.7°F
The month with the highest average low temperature is August (84.7°F).
The coldest months (with the lowest average low temperature) are January and December (50.4°F).
Average pressure in September
Calipatria, CA
- Average pressure in September: 29.81"Hg
The month with the highest atmospheric pressure is January (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.77"Hg).
Average wind speed in September
Calipatria, CA
- Average wind speed in September: 6.3mph
The windiest months (with the highest average wind speed) are April and May (8.1mph).
The calmest month (with the lowest average wind speed) is January (5.5mph).
Average humidity in September
Calipatria, CA
- Average humidity in September: 26%
The month with the highest relative humidity is December (41%).
The month with the lowest relative humidity is June (22%).
Average rainfall in September
Calipatria, CA
- Average rainfall in September: 0.51"
The wettest month (with the highest rainfall) is July (0.87").
The driest month (with the least rainfall) is May (0").
Average rainfall days in September
Calipatria, CA
- Average rainfall days in September: 4.5 days
The month with the highest number of rainy days is July (8.3 days).
The month with the least rainy days is May (0.8 days).
Average daylight in September /
Average sunshine in September
Calipatria, CA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in September: 10h and 1min
The month with the most sunshine is June (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 7h and 0min).
Average sunshine days in September
Calipatria, CA
- Average sunshine days in September: 22.7 days
The month with the most sunshine days is May (30 days).
The month with the least sunshine days is July (19 days).
Average UV index in September
Calipatria, CA
- Average UV index in September: 8
The month with the highest UV index is July (UV index 9).
The month with the lowest UV index is December (UV index 4).
Average cloud cover in September
Calipatria, CA
- Average cloud cover in September: 7
The month with the most cloud cover is December (Cloud cover 18).
The month with the least cloud cover is June (Cloud cover 5).
Average visibility in September
Calipatria, 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).