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 Ramon marks the start of May with an average high-temperature of an agreeable 72.5°F (22.5°C), hinting at a slight fluctuation from April's 67.6°F (19.8°C). A notable decrease from the day's highest temperature marks May in San Ramon, culminating in an average low of 48.7°F (9.3°C).Humidity
In May, the average relative humidity is 64%.Rainfall
In San Ramon, in May, it is raining for 4.6 days, with typically 0.55" (14mm) of accumulated precipitation. Throughout the year, in San Ramon, there are 67.2 rainfall days, and 10.98" (279mm) of precipitation is accumulated.Daylight
In May, the average length of the day in San Ramon is 14h and 14min.On the first day of the month, sunrise is at 6:10 am and sunset at 7:58 pm. On the last day of May, in San Ramon, sunrise is at 5:47 am and sunset at 8:23 pm PDT.
Sunshine
The average sunshine in May in San Ramon is 10.9h.UV index
In May, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the average person.Note: In May, the maximum UV index of 5 suggests this advice:
Be vigilant - Suggestions to stave off sun damage are provided. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are May temperatures in San Ramon?
What is the average humidity in May in San Ramon?
How many days does it rain in May in San Ramon?
What is the average length of the day in May in San Ramon?
When are sunrise and sunset in May in San Ramon?
How long on average sun shines in May in San Ramon?
What is the UV index reading in May in San Ramon?
Average temperature in May
San Ramon, CA
- Average high temperature in May: 72.5°F
The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is December (55.9°F).
- Average low temperature in May: 48.7°F
The month with the highest average low temperature is September (56.5°F).
The coldest month (with the lowest average low temperature) is December (42.1°F).
Average pressure in May
San Ramon, CA
- Average pressure in May: 29.98"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.92"Hg).
Average wind speed in May
San Ramon, CA
- Average wind speed in May: 6.7mph
The windiest month (with the highest average wind speed) is May (6.7mph).
The calmest month (with the lowest average wind speed) is November (4.2mph).
Average humidity in May
San Ramon, CA
- Average humidity in May: 64%
The month with the highest relative humidity is March (74%).
The month with the lowest relative humidity is September (57%).
Average rainfall in May
San Ramon, CA
- Average rainfall in May: 0.55"
The wettest month (with the highest rainfall) is February (2.28").
The driest month (with the least rainfall) is July (0").
Average rainfall days in May
San Ramon, CA
- Average rainfall days in May: 4.6 days
The month with the highest number of rainy days is March (12.6 days).
The month with the least rainy days is August (0.6 days).
Average daylight in May /
Average sunshine in May
San Ramon, 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 6min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).
Average sunshine days in May
San Ramon, CA
- Average sunshine days in May: 25.7 days
The month with the most sunshine days is July (29.9 days).
The month with the least sunshine days is March (17.5 days).
Average UV index in May
San Ramon, CA
- Average UV index in May: 5
The months with the highest UV index are June, July and August (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 Ramon, CA
- Average cloud cover in May: 22
The month with the most cloud cover is March (Cloud cover 36).
The month with the least cloud cover is July (Cloud cover 6).
Average visibility in May
San Ramon, 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 Ramon, California, USA
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