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
September's commencement is accompanied by an average high-temperature of a still hot 88.7°F (31.5°C), diverging marginally from August's 93.4°F (34.1°C). Marked by a significant temperature drop from daytime highs, the average nighttime temperature in Woodbridge, California, lowers to a moderate 58.5°F (14.7°C) throughout September.Heat index
During September, the heat index is evaluated at a hot 89.6°F (32°C). With ongoing exposure and activity, one might experience weariness, and heat cramps could ensue.Heat index's context suggests values are appropriate for shady areas and slight breezes. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', integrates the air's temperature and its humidity to showcase the felt temperature by people. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
Humidity
In September, the average relative humidity is 45%.Rainfall
In September, in Woodbridge, the rain falls for 1.7 days. Throughout September, 0.12" (3mm) of precipitation is accumulated. In Woodbridge, during the entire year, the rain falls for 65.8 days and collects up to 12.8" (325mm) of precipitation.Snowfall
In Woodbridge, snow does not fall in January through November.Daylight
In September, the average length of the day is 12h and 25min.On the first day of September in Woodbridge, sunrise is at 6:35 am and sunset at 7:34 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 6:49 pm PDT.
Sunshine
The average sunshine in September in Woodbridge is 11.3h.UV index
The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the average person.Note: In September, the maximum UV index of 5 suggests this advice:
Put precautions into practice - Protective measures against sun-induced damage are advised. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Frequently asked questions
Is it hot in Woodbridge during September?
What is the average humidity in September in Woodbridge?
How many days does it rain in September in Woodbridge?
When it does not snow in Woodbridge?
What is the average length of the day in September in Woodbridge?
When are sunrise and sunset in September in Woodbridge?
How many hours of sunshine does Woodbridge have in September?
What is the UV index reading in September in Woodbridge?
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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