September weather forecastDel Monte Forest, CA
September
Weather in September
September, the first month of the autumn in Del Monte Forest, is also an agreeable month, with an average temperature fluctuating between 55.4°F (13°C) and 69.6°F (20.9°C).Temperature
In Del Monte Forest, temperatures reach their average annual highs in September, measuring 69.6°F (20.9°C) and a minimum average of 55.4°F (13°C).Humidity
In September, the average relative humidity in Del Monte Forest is 75%.Rainfall
In Del Monte Forest, during September, the rain falls for 2.4 days and regularly aggregates up to 0.08" (2mm) of precipitation. Throughout the year, there are 70 rainfall days, and 11.93" (303mm) of precipitation is accumulated.Daylight
In September, the average length of the day is 12h and 24min.On the first day of the month, sunrise is at 6:39 am and sunset at 7:35 pm. On the last day of September, in Del Monte Forest, sunrise is at 7:02 am and sunset at 6:52 pm PDT.
Sunshine
In September, the average sunshine is 11h.UV index
The months with the highest UV index in Del Monte Forest are June through September, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the average person.Note: In September, a daily maximum UV index of 5 leads to the following instructions:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Del Monte Forest, CA
- Average high temperature in September: 69.6°F
The warmest month (with the highest average high temperature) is September (69.6°F).
The month with the lowest average high temperature is December (57°F).
- Average low temperature in September: 55.4°F
The month with the highest average low temperature is September (55.4°F).
The coldest month (with the lowest average low temperature) is December (46.9°F).
Average pressure in September
Del Monte Forest, CA
- Average pressure in September: 29.93"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 (29.93"Hg).
Average wind speed in September
Del Monte Forest, CA
- Average wind speed in September: 6.3mph
The windiest month (with the highest average wind speed) is April (8.5mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in September
Del Monte Forest, CA
- Average humidity in September: 75%
The month with the highest relative humidity is August (79%).
The month with the lowest relative humidity is November (70%).
Average rainfall in September
Del Monte Forest, CA
- Average rainfall in September: 0.08"
The wettest month (with the highest rainfall) is December (2.48").
The driest month (with the least rainfall) is August (0.04").
Average rainfall days in September
Del Monte Forest, CA
- Average rainfall days in September: 2.4 days
The month with the highest number of rainy days is March (12.3 days).
The month with the least rainy days is August (1.3 days).
Average daylight in September /
Average sunshine in September
Del Monte Forest, CA
- Average daylight in September: 12h and 24min
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 0min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).
Average sunshine days in September
Del Monte Forest, CA
- Average sunshine days in September: 26.8 days
The month with the most sunshine days is August (27.8 days).
The month with the least sunshine days is March (17.3 days).
Average UV index in September
Del Monte Forest, CA
- Average UV index in September: 5
The months with the highest UV index are June, July, August and September (UV index 5).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in September
Del Monte Forest, CA
- Average cloud cover in September: 15
The month with the most cloud cover is March (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 13).
Average visibility in September
Del Monte Forest, 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).
