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
October brings a minor shift in the average high-temperature, adjusting from a moderately hot 77.7°F (25.4°C) in September to an agreeable 71.4°F (21.9°C). San Leandro records an average nighttime low-temperature of 54°F (12.2°C) throughout October.Humidity
The months with the lowest humidity in San Leandro are September and October, with an average relative humidity of 64%.Rainfall
In San Leandro, in October, during 3.8 rainfall days, 0.28" (7mm) of precipitation is typically accumulated. Throughout the year, there are 57.7 rainfall days, and 5.71" (145mm) of precipitation is accumulated.Daylight
In San Leandro, the average length of the day in October is 11h and 12min.On the first day of the month, sunrise is at 7:04 am and sunset at 6:51 pm. On the last day of October, sunrise is at 7:33 am and sunset at 6:10 pm PDT.
Sunshine
In October, the average sunshine in San Leandro is 7.1h.UV index
In October, the average daily maximum UV index in San Leandro is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: An average maximum UV index of 4 in October leads to these recommendations:
Take precautions - Protection against sun damage is advised. Avoiding the Sun during its peak radiation time around midday is a healthy practice. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in San Leandro in October?
What is the least humid month in San Leandro?
What is the average humidity in October in San Leandro?
How much does it rain in San Leandro in October?
How many hours of daylight does San Leandro have in October?
When is the sunrise / sunset in October in San Leandro?
How many hours of sunshine does San Leandro have in October?
How high is the UV index in October in San Leandro?
Average temperature in October
San Leandro, CA
- Average high temperature in October: 71.4°F
The warmest months (with the highest average high temperature) are July and September (77.7°F).
The month with the lowest average high temperature is December (55.8°F).
- Average low temperature in October: 54°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 (44.1°F).
Average pressure in October
San Leandro, 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
San Leandro, CA
- Average wind speed in October: 4.9mph
The windiest month (with the highest average wind speed) is May (7mph).
The calmest month (with the lowest average wind speed) is November (4.8mph).
Average humidity in October
San Leandro, CA
- Average humidity in October: 64%
The month with the highest relative humidity is March (75%).
The months with the lowest relative humidity are September and October (64%).
Average rainfall in October
San Leandro, CA
- Average rainfall in October: 0.28"
The wettest month (with the highest rainfall) is February (1.26").
The driest months (with the least rainfall) are July, August and September (0.04").
Average rainfall days in October
San Leandro, CA
- Average rainfall days in October: 3.8 days
The month with the highest number of rainy days is March (10.2 days).
The month with the least rainy days is August (0.7 days).
Average daylight in October /
Average sunshine in October
San Leandro, 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
San Leandro, CA
- Average sunshine days in October: 25.9 days
The month with the most sunshine days is July (27.1 days).
The month with the least sunshine days is March (19.1 days).
Average UV index in October
San Leandro, CA
- Average UV index in October: 4
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in October
San Leandro, CA
- Average cloud cover in October: 16
The month with the most cloud cover is March (Cloud cover 34).
The month with the least cloud cover is July (Cloud cover 8).
Average visibility in October
San Leandro, 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 Leandro, California, USA
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