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
September marks a gentle change in average high-temperature, declining from August's blisteringly hot 104.2°F (40.1°C) to a sweltering 97.7°F (36.5°C). Inca throughout September, records an average low-temperature of 79.9°F (26.6°C).Humidity
In Inca, the average relative humidity in September is 25%.Rainfall
In Inca, in September, during 4.1 rainfall days, 0.31" (8mm) of precipitation is typically accumulated. Throughout the year, in Inca, there are 34.2 rainfall days, and 2.99" (76mm) of precipitation is accumulated.Daylight
In Inca, California, the average length of the day in September is 12h and 22min.On the first day of the month, sunrise is at 6:13 am and sunset at 7:04 pm. On the last day of September, in Inca, sunrise is at 6:33 am and sunset at 6:24 pm PDT.
Sunshine
In Inca, California, the average sunshine in September is 10.1h.UV index
In Inca, the average daily maximum UV index in September is 8. A UV Index value of 8 to 10 symbolizes a very high threat to health from exposure to the Sun's UV radiation for average individuals.Note: In September, a daily maximum UV index of 8 leads to the following instructions:
Always prioritize safety measures. Rapid harm can befall unprotected skin and eyes. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in Inca in September?
What is the average humidity in September in Inca?
How much does it rain in Inca in September?
What is the average length of the day in September in Inca?
When are sunrise and sunset in September in Inca?
How many hours of sunshine does Inca have in September?
What is the UV index reading in September in Inca?
Average temperature in September
Inca, CA
- Average high temperature in September: 97.7°F
The warmest month (with the highest average high temperature) is July (105.1°F).
The month with the lowest average high temperature is December (62.8°F).
- Average low temperature in September: 79.9°F
The month with the highest average low temperature is August (86.2°F).
The coldest month (with the lowest average low temperature) is December (48.2°F).
Average pressure in September
Inca, CA
- Average pressure in September: 29.79"Hg
The month with the highest atmospheric pressure is January (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.74"Hg).
Average wind speed in September
Inca, CA
- Average wind speed in September: 6.5mph
The windiest month (with the highest average wind speed) is April (8.8mph).
The calmest month (with the lowest average wind speed) is November (6.4mph).
Average humidity in September
Inca, CA
- Average humidity in September: 25%
The months with the highest relative humidity are January and December (38%).
The month with the lowest relative humidity is June (18%).
Average rainfall in September
Inca, CA
- Average rainfall in September: 0.31"
The wettest month (with the highest rainfall) is July (0.55").
The driest months (with the least rainfall) are May and June (0.04").
Average rainfall days in September
Inca, CA
- Average rainfall days in September: 4.1 days
The month with the highest number of rainy days is July (7.3 days).
The month with the least rainy days is May (1.2 days).
Average daylight in September /
Average sunshine in September
Inca, CA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in September: 10h and 1min
The months with the most sunshine are June and August (Average sunshine: 12h and 12min).
The months with the least sunshine are January and December (Average sunshine: 7h and 12min).
Average sunshine days in September
Inca, CA
- Average sunshine days in September: 22.5 days
The month with the most sunshine days is May (29.3 days).
The month with the least sunshine days is July (19.1 days).
Average UV index in September
Inca, CA
- Average UV index in September: 8
The months with the highest UV index are July and August (UV index 9).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in September
Inca, CA
- Average cloud cover in September: 8
The month with the most cloud cover is December (Cloud cover 17).
The month with the least cloud cover is June (Cloud cover 5).
Average visibility in September
Inca, 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).
Inca, California, USA
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