Contents
- Weather in October
- Frequently asked questions
- Average temperature in October
- Average pressure in October
- Average wind speed in October
- Average humidity in October
- Average rainfall in October
- Average rainfall days in October
- Average daylight in October
- Average sunshine in October
- Average sunshine days in October
- Average UV index in October
- Average cloud cover in October
- Average visibility in October
Weather in October
Temperature
A moderate decline in average high-temperatures is noted in October, moving from a warm 84.7°F (29.3°C) in September to a still moderately hot 78.1°F (25.6°C). Throughout October, a steady low-temperature average of 59.4°F (15.2°C) is noted.Humidity
The average relative humidity in October in San Marino is 49%.Rainfall
In San Marino, in October, it is raining for 2.6 days, with typically 0.2" (5mm) of accumulated precipitation. In San Marino, during the entire year, the rain falls for 45 days and collects up to 6.61" (168mm) of precipitation.Daylight
The average length of the day in October is 11h and 19min.On the first day of October, sunrise is at 6:47 am and sunset at 6:36 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 6:00 pm PDT.
Sunshine
In San Marino, the average sunshine in October is 8.6h.UV index
In San Marino, the average daily maximum UV index in October is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.Note: A maximum high daily UV index of 5 during October translates into the following directions:
Guard yourself - An obligation to protect skin and eyes from harm exists. Around midday, solar radiation is most harmful; hence, exposure should be limited. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are October temperatures?
What is the average humidity in October?
How much does it rain in October?
How many hours of daylight does San Marino have in October?
When is the sunrise / sunset in October?
How many hours of sunshine does San Marino have in October?
What is the UV index reading in October?
Average temperature in October
San Marino, CA
- Average high temperature in October: 78.1°F
The warmest month (with the highest average high temperature) is August (87.1°F).
The month with the lowest average high temperature is December (63.1°F).
- Average low temperature in October: 59.4°F
The month with the highest average low temperature is August (64.8°F).
The coldest month (with the lowest average low temperature) is February (47.1°F).
Average pressure in October
San Marino, CA
- Average pressure in October: 29.95"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in October
San Marino, CA
- Average wind speed in October: 4.5mph
The windiest month (with the highest average wind speed) is April (5.7mph).
The calmest month (with the lowest average wind speed) is September (4.4mph).
Average humidity in October
San Marino, CA
- Average humidity in October: 49%
The month with the highest relative humidity is June (59%).
The month with the lowest relative humidity is November (47%).
Average rainfall in October
San Marino, CA
- Average rainfall in October: 0.2"
The wettest month (with the highest rainfall) is December (1.34").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in October
San Marino, CA
- Average rainfall days in October: 2.6 days
The month with the highest number of rainy days is March (5.8 days).
The month with the least rainy days is June (1.2 days).
Average daylight in October /
Average sunshine in October
San Marino, CA
- Average daylight in October: 11h 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: 9h and 54min).
- Average sunshine in October: 8h and 4min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The months with the least sunshine are January, February and December (Average sunshine: 6h and 54min).
Average sunshine days in October
San Marino, CA
- Average sunshine days in October: 26.7 days
The month with the most sunshine days is June (27.1 days).
The month with the least sunshine days is February (22.3 days).
Average UV index in October
San Marino, CA
- Average UV index in October: 5
The months with the highest UV index are June, July, August and September (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 4).
Average cloud cover in October
San Marino, CA
- Average cloud cover in October: 10
The months with the most cloud cover are March and December (Cloud cover 21).
The month with the least cloud cover is August (Cloud cover 5).
Average visibility in October
San Marino, CA
- Average visibility in October: 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).
San Marino, California, USA
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