Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
San Leandro marks the onset of May with an average high-temperature of a pleasant 68.9°F (20.5°C), subtly divergent from April's 65.3°F (18.5°C). The low-temperature averages to a chilly 49.6°F (9.8°C) during the nights of May.Humidity
In San Leandro, the average relative humidity in May is 69%.Rainfall
In San Leandro, in May, during 4 rainfall days, 0.31" (8mm) of precipitation is typically accumulated. Throughout the year, there are 57.7 rainfall days, and 5.71" (145mm) of precipitation is accumulated.Daylight
The average length of the day in May is 14h and 13min.On the first day of the month, sunrise is at 6:11 am and sunset at 7:59 pm. On the last day of May, sunrise is at 5:48 am and sunset at 8:24 pm PDT.
Sunshine
The average sunshine in May is 10.9h.UV index
In San Leandro, the average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: The maximum UV index of 5 during May translates into these guidelines:
Adopt protective measures - Suggestions to resist sunburn are offered. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in May in San Leandro?
What is the average humidity in May in San Leandro?
How much does it rain in San Leandro in May?
What is the average length of the day in May in San Leandro?
What time are sunrise and sunset in May in San Leandro?
How many hours of sunshine does San Leandro have in May?
How high is the UV index in May in San Leandro?
Average temperature in May
San Leandro, CA
- Average high temperature in May: 68.9°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 May: 49.6°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 May
San Leandro, CA
- Average pressure in May: 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 May
San Leandro, CA
- Average wind speed in May: 7mph
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 May
San Leandro, CA
- Average humidity in May: 69%
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 May
San Leandro, CA
- Average rainfall in May: 0.31"
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 May
San Leandro, CA
- Average rainfall days in May: 4 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 May /
Average sunshine in May
San Leandro, CA
- Average daylight in May: 14h 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 May: 10h and 5min
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 May
San Leandro, CA
- Average sunshine days in May: 23.9 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 May
San Leandro, CA
- Average UV index in May: 5
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 May
San Leandro, CA
- Average cloud cover in May: 23
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 May
San Leandro, CA
- Average visibility in May: 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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