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 snowfall 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
The unfolding of September shows an average high-temperature of a still tropical 88.7°F (31.5°C), indicating a slight variance from August's 93.4°F (34.1°C). Despite drastic daily temperature oscillations, Woodbridge cools down to an average low-temperature of 58.5°F (14.7°C) in September.Heat index
The heat index value during September is computed to be a tropical 89.6°F (32°C). With extended exposure and activity, one might feel exhausted and experience heat cramps.Given the heat index, its values are aligned with shaded sites and gentle winds. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is an aggregate value of air's warmth and moisture to show the human-felt temperature. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.
Humidity
The average relative humidity in September is 45%.Rainfall
In Woodbridge, in September, it is raining for 1.7 days, with typically 0.12" (3mm) of accumulated precipitation. Throughout the year, in Woodbridge, there are 65.8 rainfall days, and 12.8" (325mm) of precipitation is accumulated.Snowfall
In Woodbridge, snow does not fall in January through November.Daylight
In Woodbridge, the average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 6:35 am and sunset at 7:34 pm. On the last day of September, sunrise is at 7:00 am and sunset at 6:49 pm PDT.
Sunshine
The average sunshine in September is 11.3h.UV index
In Woodbridge, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In September, the UV index of 5 transforms into the following advice:
Undertake precautions - Guarding against sun damage is counselled. It's recommended to limit sun exposure when its radiation is at its peak during midday. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in September?
What is the average humidity in September in Woodbridge?
How much does it rain in September?
When it does not snow?
How many hours of daylight does Woodbridge have in September?
When are sunrise and sunset in September?
How many hours of sunshine does Woodbridge have in September?
What is the UV index intensity in September?
Average temperature in September
Woodbridge, CA
- Average high temperature in September: 88.7°F
The warmest month (with the highest average high temperature) is July (94.3°F).
The month with the lowest average high temperature is December (55.2°F).
- Average low temperature in September: 58.5°F
The month with the highest average low temperature is July (59.4°F).
The coldest month (with the lowest average low temperature) is December (40.8°F).
Average pressure in September
Woodbridge, CA
- Average pressure in September: 29.92"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Woodbridge, CA
- Average wind speed in September: 5mph
The windiest month (with the highest average wind speed) is June (6.2mph).
The calmest month (with the lowest average wind speed) is November (4.4mph).
Average humidity in September
Woodbridge, CA
- Average humidity in September: 45%
The month with the highest relative humidity is March (74%).
The month with the lowest relative humidity is July (44%).
Average rainfall in September
Woodbridge, CA
- Average rainfall in September: 0.12"
The wettest month (with the highest rainfall) is February (2.4").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in September
Woodbridge, CA
- Average rainfall days in September: 1.7 days
The month with the highest number of rainy days is March (12.9 days).
The month with the least rainy days is July (0.9 days).
Average snowfall days in September
Woodbridge, CA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Woodbridge, CA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in September: 11h and 2min
The month with the most sunshine is July (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).
Average sunshine days in September
Woodbridge, CA
- Average sunshine days in September: 27.2 days
The month with the most sunshine days is July (29.6 days).
The month with the least sunshine days is March (17.3 days).
Average UV index in September
Woodbridge, CA
- Average UV index in September: 5
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in September
Woodbridge, CA
- Average cloud cover in September: 7
The month with the most cloud cover is March (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 4).
Average visibility in September
Woodbridge, 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).
Woodbridge, California, USA
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