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 sea temperature 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
In Alameda, entering October brings a subtle temperature decrement, reducing from September's moderately hot 75.9°F (24.4°C) to an agreeable 70.2°F (21.2°C). Throughout October, Alameda encounters an average temperature drop to a cool 54.5°F (12.5°C).Humidity
With an average relative humidity of 65%, October is the least humid month in Alameda, California.Rainfall
In Alameda, in October, it is raining for 4.5 days, with typically 0.31" (8mm) of accumulated precipitation. Throughout the year, there are 67.2 rainfall days, and 6.1" (155mm) of precipitation is accumulated.Ocean temperature
In Alameda, the average seawater temperature in October is 57°F (13.9°C).Note: Unprotected swimming in 57°F (13.9°C) is dangerous due to potential cold shock. Especially when temperatures go below 50°F (10°C), leading to hyperventilation.
Daylight
In October, the average length of the day is 11h and 12min.On the first day of October in Alameda, sunrise is at 7:05 am and sunset at 6:51 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 6:10 pm PDT.
Sunshine
The average sunshine in October in Alameda is 7.1h.UV index
The average daily maximum UV index in October in Alameda, California, is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index of 4 in October interprets into the following recommendations:
Heed the precautions - Suggestions to avoid sunburn are made. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Boost your sun resistance with garments that are densely woven yet spacious.
Frequently asked questions
What are the temperatures in Alameda in October?
What is the least humid month in Alameda?
What is the average humidity in October in Alameda?
How much does it rain in Alameda in October?
How cold is the water in October in Alameda?
What is the average length of the day in October in Alameda?
When are sunrise and sunset in October in Alameda?
How many hours of sunshine does Alameda have in October?
What is the UV index intensity in October in Alameda?
Average temperature in October
Alameda, CA
- Average high temperature in October: 70.2°F
The warmest month (with the highest average high temperature) is September (75.9°F).
The month with the lowest average high temperature is December (55.9°F).
- Average low temperature in October: 54.5°F
The month with the highest average low temperature is September (56.5°F).
The coldest month (with the lowest average low temperature) is January (45°F).
Average pressure in October
Alameda, CA
- Average pressure in October: 29.98"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 (29.92"Hg).
Average wind speed in October
Alameda, CA
- Average wind speed in October: 5.2mph
The windiest month (with the highest average wind speed) is May (7.2mph).
The calmest months (with the lowest average wind speed) are October and November (5.2mph).
Average humidity in October
Alameda, CA
- Average humidity in October: 65%
The month with the highest relative humidity is March (75%).
The month with the lowest relative humidity is October (65%).
Average rainfall in October
Alameda, CA
- Average rainfall in October: 0.31"
The wettest month (with the highest rainfall) is February (1.18").
The driest month (with the least rainfall) is July (0.04").
Average rainfall days in October
Alameda, CA
- Average rainfall days in October: 4.5 days
The month with the highest number of rainy days is March (11.4 days).
The month with the least rainy days is August (1.3 days).
Average sea temperature in October
Alameda, CA
- Average sea temperature in October: 56.9°F
The best month for swimming (with the highest average sea temperature) is September (57.3°F).
The coldest months (with the lowest average sea temperature) are April and June (53°F).
Average daylight in October /
Average sunshine in October
Alameda, CA
- Average daylight in October: 11h 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 October: 7h and 1min
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 October
Alameda, CA
- Average sunshine days in October: 24.8 days
The month with the most sunshine days is July (25.4 days).
The month with the least sunshine days is March (17.3 days).
Average UV index in October
Alameda, CA
- Average UV index in October: 4
The months with the highest UV index are April, May, June, July, August and September (UV index 5).
The months with the lowest UV index are January, November and December (UV index 3).
Average cloud cover in October
Alameda, CA
- Average cloud cover in October: 16
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 October
Alameda, 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).
Alameda, California, USA
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