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
Coronado records an average high-temperature of a still warm 75.2°F (24°C) as September arrives, nearly mirroring the previous month's climate. Coronado's average low-temperature for the month of September records at an enjoyable 65.3°F (18.5°C).Humidity
In Coronado, the average relative humidity in September is 70%.Rainfall
In September, in Coronado, the rain falls for 3.7 days. Throughout September, 0.31" (8mm) of precipitation is accumulated. Throughout the year, in Coronado, California, there are 64.5 rainfall days, and 9.02" (229mm) of precipitation is accumulated.Ocean temperature
In Coronado, California, in September, the average water temperature is 66.7°F (19.3°C).Note: Most people do not enjoy swimming in water that is 66.7°F (19.3°C). Breathing becomes increasingly challenging as the water temperature dips under 69.8°F (21°C).
Daylight
In September, the average length of the day is 12h and 22min.On the first day of September, sunrise is at 6:24 am and sunset at 7:12 pm. On the last day of the month, sunrise is at 6:42 am and sunset at 6:34 pm PDT.
Sunshine
The average sunshine in September is 10.3h.UV index
The months with the highest UV index are July through September, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the average person.Note: During September, 6 as the daily maximum UV index converts into the following advice:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Frequently asked questions
What are September temperatures in Coronado?
What is the average humidity in September in Coronado?
How many days does it rain in September in Coronado?
What is the ocean temperature in September in Coronado?
What is the average length of the day in September in Coronado?
When is the sunrise / sunset in September in Coronado?
How long on average sun shines in September in Coronado?
What is the month with the highest UV index in Coronado?
How high is the UV index in September in Coronado?
Average temperature in September
Coronado, CA
- Average high temperature in September: 75.2°F
The warmest month (with the highest average high temperature) is August (75.6°F).
The months with the lowest average high temperature are February and December (63°F).
- Average low temperature in September: 65.3°F
The month with the highest average low temperature is August (65.5°F).
The coldest month (with the lowest average low temperature) is February (53.1°F).
Average pressure in September
Coronado, CA
- Average pressure in September: 29.88"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The months with the lowest atmospheric pressure are June and September (29.88"Hg).
Average wind speed in September
Coronado, CA
- Average wind speed in September: 5.8mph
The windiest month (with the highest average wind speed) is April (6.7mph).
The calmest month (with the lowest average wind speed) is October (5.5mph).
Average humidity in September
Coronado, CA
- Average humidity in September: 70%
The month with the highest relative humidity is June (76%).
The months with the lowest relative humidity are January and November (61%).
Average rainfall in September
Coronado, CA
- Average rainfall in September: 0.31"
The wettest month (with the highest rainfall) is December (1.81").
The driest month (with the least rainfall) is June (0.08").
Average rainfall days in September
Coronado, CA
- Average rainfall days in September: 3.7 days
The month with the highest number of rainy days is March (8.4 days).
The month with the least rainy days is June (2.8 days).
Average sea temperature in September
Coronado, CA
- Average sea temperature in September: 66.7°F
The best month for swimming (with the highest average sea temperature) is August (67.9°F).
The coldest month (with the lowest average sea temperature) is February (58.7°F).
Average daylight in September /
Average sunshine in September
Coronado, 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 2min
The months with the most sunshine are July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days in September
Coronado, CA
- Average sunshine days in September: 23.9 days
The month with the most sunshine days is August (24.8 days).
The month with the least sunshine days is February (20.1 days).
Average UV index in September
Coronado, CA
- Average UV index in September: 6
The months with the highest UV index are July, August and September (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 4).
Average cloud cover in September
Coronado, CA
- Average cloud cover in September: 12
The months with the most cloud cover are March, May and December (Cloud cover 24).
The month with the least cloud cover is August (Cloud cover 9).
Average visibility in September
Coronado, 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).
Coronado, California, USA
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