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
In San Juan Capistrano, September is identified by the highest average temperatures, reaching a peak of 77.4°F (25.2°C) and a low of 63.1°F (17.3°C).Humidity
The average relative humidity in September in San Juan Capistrano is 68%.Rainfall
In September, in San Juan Capistrano, the rain falls for 5.6 days. Throughout September, 0.39" (10mm) of precipitation is accumulated. Throughout the year, in San Juan Capistrano, California, there are 69 rainfall days, and 9.09" (231mm) of precipitation is accumulated.Daylight
In San Juan Capistrano, the average length of the day in September is 12h and 22min.On the first day of the month, sunrise is at 6:25 am and sunset at 7:15 pm. On the last day of September, in San Juan Capistrano, sunrise is at 6:44 am and sunset at 6:35 pm PDT.
Sunshine
In September, the average sunshine is 10.3h.UV index
July through September, with an average maximum UV index of 6, are months with the highest UV index in San Juan Capistrano. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: During September, 6 as the daily maximum UV index converts into the following advice:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. Stay sun-safe with clothing that is both closely woven and worn loosely.
Frequently asked questions
What part of the year is the hottest in San Juan Capistrano?
What are September temperatures in San Juan Capistrano?
What is the average humidity in September in San Juan Capistrano?
How many days does it rain in September in San Juan Capistrano?
What is the average length of the day in September in San Juan Capistrano?
What time are sunrise and sunset in September in San Juan Capistrano?
How many hours of sunshine does San Juan Capistrano have in September?
What are the months with the highest UV index in San Juan Capistrano?
What is the UV index reading in September in San Juan Capistrano?
Average temperature in September
San Juan Capistrano, CA
- Average high temperature in September: 77.4°F
The warmest month (with the highest average high temperature) is September (77.4°F).
The month with the lowest average high temperature is December (62.4°F).
- Average low temperature in September: 63.1°F
The month with the highest average low temperature is August (63.3°F).
The coldest month (with the lowest average low temperature) is February (50°F).
Average pressure in September
San Juan Capistrano, CA
- Average pressure in September: 29.89"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in September
San Juan Capistrano, CA
- Average wind speed in September: 5mph
The windiest month (with the highest average wind speed) is April (6.3mph).
The calmest months (with the lowest average wind speed) are August, September and October (5mph).
Average humidity in September
San Juan Capistrano, CA
- Average humidity in September: 68%
The month with the highest relative humidity is June (74%).
The month with the lowest relative humidity is November (59%).
Average rainfall in September
San Juan Capistrano, CA
- Average rainfall in September: 0.39"
The wettest month (with the highest rainfall) is December (1.85").
The driest month (with the least rainfall) is June (0.12").
Average rainfall days in September
San Juan Capistrano, CA
- Average rainfall days in September: 5.6 days
The month with the highest number of rainy days is March (7.8 days).
The month with the least rainy days is June (3 days).
Average daylight in September /
Average sunshine in September
San Juan Capistrano, 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 month with the most sunshine is August (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 6h and 24min).
Average sunshine days in September
San Juan Capistrano, CA
- Average sunshine days in September: 21.5 days
The month with the most sunshine days is January (24.7 days).
The month with the least sunshine days is May (19.5 days).
Average UV index in September
San Juan Capistrano, 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
San Juan Capistrano, CA
- Average cloud cover in September: 14
The month with the most cloud cover is March (Cloud cover 27).
The month with the least cloud cover is August (Cloud cover 11).
Average visibility in September
San Juan Capistrano, 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).
San Juan Capistrano, California, USA
Weather forecast for your location
2. Allow the app to use your location
