September weather forecastTrabuco Highlands, CA
September
Weather in September
The first month of the autumn, September, is still a warm month in Trabuco Highlands, California, with temperature in the range of an average high of 79.7°F (26.5°C) and an average low of 63.5°F (17.5°C).Temperature
As September takes its course, Trabuco Highlands's average high-temperature registers at a still moderately hot 79.7°F (26.5°C), closely aligning with the preceding month. An average minimum temperature of 63.5°F (17.5°C) marks the month of September in Trabuco Highlands.Humidity
In September, the average relative humidity is 63%.Rainfall
In Trabuco Highlands, during September, the rain falls for 4.5 days and regularly aggregates up to 0.24" (6mm) of precipitation. In Trabuco Highlands, California, during the entire year, the rain falls for 64.2 days and collects up to 5.79" (147mm) of precipitation.Daylight
In Trabuco Highlands, the average length of the day in September is 12h and 22min.On the first day of September in Trabuco Highlands, sunrise is at 6:24 am and sunset at 7:15 pm. On the last day of the month, sunrise is at 6:44 am and sunset at 6:35 pm PDT.
Sunshine
In Trabuco Highlands, the average sunshine in September is 10.5h.UV index
June through September, with an average maximum UV index of 6, are months with the highest UV index in Trabuco Highlands. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the average person.Note: In September, a daily maximum UV index of 6 leads to the following instructions:
Guard against overexposure. Protection from sun-induced harm is essential. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Trabuco Highlands, CA
- Average high temperature in September: 79.7°F
The warmest month (with the highest average high temperature) is August (81.1°F).
The month with the lowest average high temperature is December (63°F).
- Average low temperature in September: 63.5°F
The month with the highest average low temperature is August (64.2°F).
The coldest month (with the lowest average low temperature) is February (48.9°F).
Average pressure in September
Trabuco Highlands, CA
- Average pressure in September: 29.88"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are June and September (29.88"Hg).
Average wind speed in September
Trabuco Highlands, CA
- Average wind speed in September: 4.6mph
The windiest month (with the highest average wind speed) is April (5.8mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).
Average humidity in September
Trabuco Highlands, CA
- Average humidity in September: 63%
The months with the highest relative humidity are May and June (70%).
The month with the lowest relative humidity is November (56%).
Average rainfall in September
Trabuco Highlands, CA
- Average rainfall in September: 0.24"
The wettest month (with the highest rainfall) is December (1.02").
The driest month (with the least rainfall) is June (0.08").
Average rainfall days in September
Trabuco Highlands, CA
- Average rainfall days in September: 4.5 days
The month with the highest number of rainy days is March (8.6 days).
The month with the least rainy days is June (1.9 days).
Average daylight in September /
Average sunshine in September
Trabuco Highlands, CA
- Average daylight in September: 12h and 24min
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 30min
The month with the most sunshine is August (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 36min).
Average sunshine days in September
Trabuco Highlands, CA
- Average sunshine days in September: 22.2 days
The month with the most sunshine days is January (24.3 days).
The month with the least sunshine days is February (19.8 days).
Average UV index in September
Trabuco Highlands, CA
- Average UV index in September: 6
The months with the highest UV index are June, 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
Trabuco Highlands, CA
- Average cloud cover in September: 11
The months with the most cloud cover are March and December (Cloud cover 25).
The month with the least cloud cover is August (Cloud cover 7).
Average visibility in September
Trabuco Highlands, 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).
