Contents
- Weather in November
- Frequently asked questions
- Average temperature in November
- Average pressure in November
- Average wind speed in November
- Average humidity in November
- Average rainfall in November
- Average rainfall days in November
- Average daylight in November
- Average sunshine in November
- Average sunshine days in November
- Average UV index in November
- Average cloud cover in November
- Average visibility in November
Weather in November
Temperature
November brings a minor shift in the average high-temperature, adjusting from a pleasant 68.2°F (20.1°C) in October to a comfortable 61.9°F (16.6°C). Portola Valley's temperature tends to fall to an average low of 50.5°F (10.3°C) during the nights of November.Humidity
In November, the average relative humidity is 70%.Rainfall
In Portola Valley, in November, during 4.9 rainfall days, 0.55" (14mm) of precipitation is typically accumulated. In Portola Valley, during the entire year, the rain falls for 57.5 days and collects up to 4.76" (121mm) of precipitation.Daylight
In Portola Valley, the average length of the day in November is 10h and 10min.On the first day of November, sunrise is at 7:34 am and sunset at 6:10 pm PDT. On the last day of the month, sunrise is at 7:04 am and sunset at 4:51 pm PST.
Note: On Sunday, November 3. 2024, at 2:00 am, Daylight Saving Time ends, and the time zone changes from PDT to PST. Daylight Saving Time starts again on Sunday, March 9. 2025, at 2:00 am; consequently, the time zone reverts from PST to PDT.
Sunshine
In November, the average sunshine is 6.7h.UV index
February, November and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum UV index, 3 during November, leads to the following recommendations:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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
What are the temperatures in Portola Valley in November?
What is the average humidity in November in Portola Valley?
How much does it rain in Portola Valley in November?
What is the average length of the day in November in Portola Valley?
What time are sunrise and sunset in November in Portola Valley?
When does Daylight Saving Time (DST) end in November in Portola Valley?
How many hours of sunshine does Portola Valley have in November?
What are the months with the lowest UV index in Portola Valley?
How high is the UV index in November in Portola Valley?
Average temperature in November
Portola Valley, CA
- Average high temperature in November: 61.9°F
The warmest month (with the highest average high temperature) is August (73°F).
The month with the lowest average high temperature is December (55.8°F).
- Average low temperature in November: 50.5°F
The months with the highest average low temperature are August and September (56.7°F).
The coldest months (with the lowest average low temperature) are January and February (46.4°F).
Average pressure in November
Portola Valley, CA
- Average pressure in November: 30.07"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is September (29.92"Hg).
Average wind speed in November
Portola Valley, CA
- Average wind speed in November: 6mph
The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in November
Portola Valley, CA
- Average humidity in November: 70%
The month with the highest relative humidity is March (76%).
The month with the lowest relative humidity is October (68%).
Average rainfall in November
Portola Valley, CA
- Average rainfall in November: 0.55"
The wettest month (with the highest rainfall) is February (0.98").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in November
Portola Valley, CA
- Average rainfall days in November: 4.9 days
The month with the highest number of rainy days is March (10.6 days).
The month with the least rainy days is June (0.9 days).
Average daylight in November /
Average sunshine in November
Portola Valley, CA
- Average daylight in November: 10h and 1min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in November: 6h and 4min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).
Average sunshine days in November
Portola Valley, CA
- Average sunshine days in November: 23.8 days
The months with the most sunshine days are June and July (26.3 days).
The month with the least sunshine days is March (18.3 days).
Average UV index in November
Portola Valley, CA
- Average UV index in November: 3
The months with the highest UV index are June, July, August and September (UV index 5).
The months with the lowest UV index are February, November and December (UV index 3).
Average cloud cover in November
Portola Valley, CA
- Average cloud cover in November: 23
The month with the most cloud cover is March (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 9).
Average visibility in November
Portola Valley, CA
- Average visibility in November: 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).
Portola Valley, California, USA
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