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 indicates a minor shift in the average high-temperature, from August's extremely hot 106.7°F (41.5°C) to a torrid 99.9°F (37.7°C). The average nighttime temperature lowers to a warm 80.2°F (26.8°C) throughout September.Humidity
In Calexico, California, the average relative humidity in September is 25%.Rainfall
In Calexico, during September, the rain falls for 3 days and regularly aggregates up to 0.28" (7mm) of precipitation. Throughout the year, in Calexico, there are 24.1 rainfall days, and 2.44" (62mm) of precipitation is accumulated.Daylight
In Calexico, California, the average length of the day in September is 12h and 22min.On the first day of September in Calexico, sunrise is at 6:17 am and sunset at 7:06 pm. On the last day of the month, sunrise is at 6:35 am and sunset at 6:27 pm PDT.
Sunshine
In September, the average sunshine in Calexico is 10.2h.UV index
In Calexico, the average daily maximum UV index in September is 8. A UV Index of 8 to 10 symbolizes a very high health risk from unsafe exposure to UV radiation for the ordinary person.Note: The daily high UV index of 8 during September translates into the following recommendations:
Always remain cautious. Unprotected skin and eyes are prone to swift harm. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in Calexico in September?
What is the average humidity in September in Calexico?
How many days does it rain in September in Calexico?
How many hours of daylight does Calexico have in September?
What time are sunrise and sunset in September in Calexico?
How long on average sun shines in September in Calexico?
What is the UV index reading in September in Calexico?
Average temperature in September
Calexico, CA
- Average high temperature in September: 99.9°F
The warmest month (with the highest average high temperature) is July (107.2°F).
The month with the lowest average high temperature is December (67.5°F).
- Average low temperature in September: 80.2°F
The month with the highest average low temperature is August (86.4°F).
The coldest month (with the lowest average low temperature) is January (50.4°F).
Average pressure in September
Calexico, CA
- Average pressure in September: 29.81"Hg
The month with the highest atmospheric pressure is January (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.78"Hg).
Average wind speed in September
Calexico, CA
- Average wind speed in September: 5.7mph
The windiest month (with the highest average wind speed) is April (7.2mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in September
Calexico, CA
- Average humidity in September: 25%
The months with the highest relative humidity are January and December (38%).
The month with the lowest relative humidity is June (20%).
Average rainfall in September
Calexico, CA
- Average rainfall in September: 0.28"
The wettest month (with the highest rainfall) is July (0.43").
The driest month (with the least rainfall) is May (0.04").
Average rainfall days in September
Calexico, CA
- Average rainfall days in September: 3 days
The month with the highest number of rainy days is July (4.8 days).
The month with the least rainy days is May (0.8 days).
Average daylight in September /
Average sunshine in September
Calexico, 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 months with the most sunshine are June, July and August (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 7h and 6min).
Average sunshine days in September
Calexico, CA
- Average sunshine days in September: 26.2 days
The month with the most sunshine days is May (30.1 days).
The month with the least sunshine days is July (23.9 days).
Average UV index in September
Calexico, CA
- Average UV index in September: 8
The months with the highest UV index are June, July and August (UV index 9).
The months with the lowest UV index are November and December (UV index 4).
Average cloud cover in September
Calexico, CA
- Average cloud cover in September: 7
The month with the most cloud cover is December (Cloud cover 17).
The month with the least cloud cover is June (Cloud cover 5).
Average visibility in September
Calexico, 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).
Calexico, California, USA
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