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
A minimal variation is noted in Paicines's average high-temperature at the onset of September, reaching a moderately hot 85.1°F (29.5°C) from August's 87.4°F (30.8°C). The anticipated average low-temperature for September, a cool 54.9°F (12.7°C), shows a substantial deviation from the daytime maximums.Heat index
In September, the heat index is calculated to be a hot 87.8°F (31°C). If one sustains activity during exposure, it could lead to a sense of fatigue, with a chance of heat cramps.Heat index data is primarily for areas with shade and subjected to light winds. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', determines the feeling of heat when you account for the relative humidity. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.
Humidity
The average relative humidity in September is 54%.Rainfall
In Paicines, in September, it is raining for 1.5 days, with typically 0.08" (2mm) of accumulated precipitation. Throughout the year, there are 59.2 rainfall days, and 8.66" (220mm) of precipitation is accumulated.Daylight
The average length of the day in September is 12h and 24min.On the first day of September, sunrise is at 6:36 am and sunset at 7:32 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 6:49 pm PDT.
Sunshine
In September, the average sunshine is 11.4h.UV index
In Paicines, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: In September, a daily maximum UV index of 5 leads to the following instructions:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. To guard against the harmful effects of the Sun, minimize exposure during midday. Always opt for UVA and UVB-resistant sunglasses on radiant days.
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?
How many days does it rain in September?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Paicines, CA
- Average high temperature in September: 85.1°F
The warmest month (with the highest average high temperature) is July (87.8°F).
The month with the lowest average high temperature is December (57.4°F).
- Average low temperature in September: 54.9°F
The month with the highest average low temperature is August (55.4°F).
The coldest months (with the lowest average low temperature) are March and December (40.3°F).
Average pressure in September
Paicines, CA
- Average pressure in September: 29.92"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.92"Hg).
Average wind speed in September
Paicines, CA
- Average wind speed in September: 4.2mph
The windiest month (with the highest average wind speed) is May (5.5mph).
The calmest month (with the lowest average wind speed) is November (3.7mph).
Average humidity in September
Paicines, CA
- Average humidity in September: 54%
The month with the highest relative humidity is March (73%).
The month with the lowest relative humidity is July (53%).
Average rainfall in September
Paicines, CA
- Average rainfall in September: 0.08"
The wettest month (with the highest rainfall) is December (1.57").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in September
Paicines, CA
- Average rainfall days in September: 1.5 days
The month with the highest number of rainy days is March (11.6 days).
The month with the least rainy days is August (0.3 days).
Average daylight in September /
Average sunshine in September
Paicines, CA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in September: 11h and 2min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 6min).
Average sunshine days in September
Paicines, CA
- Average sunshine days in September: 27.8 days
The month with the most sunshine days is August (30.3 days).
The month with the least sunshine days is March (18.6 days).
Average UV index in September
Paicines, CA
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in September
Paicines, CA
- Average cloud cover in September: 7
The month with the most cloud cover is March (Cloud cover 34).
The months with the least cloud cover are July and August (Cloud cover 5).
Average visibility in September
Paicines, 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).
Paicines, California, USA
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