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 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 onset of September results in a small decrease in the average high-temperature, moderately receding from a moderately hot 85.5°F (29.7°C) in August to a still warm 78.1°F (25.6°C). During the September nights, an average temperature of 60.3°F (15.7°C) is observed.Humidity
In Olancha, the average relative humidity in September is 22%.Rainfall
The months with the least rainfall in Olancha are June and September Rain falls for 2.3 days and accumulates 0.16" (4mm) of rain.Snowfall
May through October are months without snowfall in Olancha.Daylight
In September, the average length of the day is 12h and 23min.On the first day of the month, sunrise is at 6:24 am and sunset at 7:19 pm. On the last day of September, in Olancha, sunrise is at 6:47 am and sunset at 6:36 pm PDT.
Sunshine
In Olancha, the average sunshine in September is 10.9h.UV index
In Olancha, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: An average UV index of 5 in September transforms into this advice:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Olancha in September?
What is the average humidity in September in Olancha?
What is the driest month in Olancha?
How much does it rain in Olancha in September?
When it does not snow in Olancha?
What is the average length of the day in September in Olancha?
What time are sunrise and sunset in September in Olancha?
How long on average sun shines in September in Olancha?
How high is the UV index in September in Olancha?
Average temperature in September
Olancha, CA
- Average high temperature in September: 78.1°F
The warmest month (with the highest average high temperature) is July (86°F).
The month with the lowest average high temperature is December (46.9°F).
- Average low temperature in September: 60.3°F
The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is December (31.5°F).
Average pressure in September
Olancha, CA
- Average pressure in September: 29.89"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).
Average wind speed in September
Olancha, CA
- Average wind speed in September: 6.2mph
The windiest months (with the highest average wind speed) are April, May and June (7.6mph).
The calmest month (with the lowest average wind speed) is November (5.8mph).
Average humidity in September
Olancha, CA
- Average humidity in September: 22%
The month with the highest relative humidity is December (47%).
The month with the lowest relative humidity is August (19%).
Average rainfall in September
Olancha, CA
- Average rainfall in September: 0.16"
The wettest month (with the highest rainfall) is December (0.67").
The driest months (with the least rainfall) are June and September (0.16").
Average rainfall days in September
Olancha, CA
- Average rainfall days in September: 2.3 days
The month with the highest number of rainy days is March (5.7 days).
The month with the least rainy days is September (2.3 days).
Average snowfall in September
Olancha, CA
- Average snowfall in September: 0"
The month with the highest snowfall is December (1.18").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Olancha, CA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (1.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Olancha, 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: 10h and 5min
The month with the most sunshine is June (Average sunshine: 12h and 12min).
The months with the least sunshine are January, February and December (Average sunshine: 7h and 18min).
Average sunshine days in September
Olancha, CA
- Average sunshine days in September: 25 days
The month with the most sunshine days is October (27.7 days).
The month with the least sunshine days is July (20 days).
Average UV index in September
Olancha, CA
- Average UV index in September: 5
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are November and December (UV index 2).
Average cloud cover in September
Olancha, CA
- Average cloud cover in September: 5
The month with the most cloud cover is January (Cloud cover 16).
The months with the least cloud cover are August and September (Cloud cover 5).
Average visibility in September
Olancha, 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).
Olancha, California, USA
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