United StatesThe weather in May in Vallejo
It's warm in May in Vallejo with an average temperature of 23°C. Temperatures this month range from a low of 21°C to a high of 26°C. At night, you can expect temperatures between 8°C and 13°C.
Looking for great weather? May is a good time to be in Vallejo. The temperatures are nice, and there’s little chance of rain this month.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in May for Vallejo, California. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 36°C in 2020, Vallejo reached the highest temperature in May over the past 10 years. The lowest daytime temperature in this month was 13°C in 2019. The extreme nighttime temperatures ranged from a lowest recorded value of 2°C to a highest value of 16°C.
Rainfall amount
In May, there is an average of 10 mm of precipitation, spread over 3 days. The wind speed is around 4 Bft, mostly coming from the Southwest.
Daily weather in May for Vallejo
Click on any day in May to get detailed info about the usual weather on that day in Vallejo. Check out the historical temperatures and precipitation over the past 10 years on this day.
May weather comparison
| Vallejo | New York | |
|---|---|---|
| Average temperature | 23°C | 22°C |
| Max. temperature | 26°C | 28°C |
| Min. temperature | 8°C | -5°C |
| Total precipitation | 10 mm | 105 mm |
| Rainy days | 3 days | 14 days |
Start of May
The month of May starts in Vallejo with warm temps, averaging around 23°C during the day and nights around 10°C.
Mid May
By mid-May, daytime temps stay steady at around 23°C, with nights around 11°C. Not much precipitation expected during this period. It’s mostly dry and sunny.
End of May
By the end of May, the average daytime temperature in Vallejo is around 25°C, while nighttime temps are about 12°C. No precipitation expected at the end of the month; it’ll be mostly sunny.
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UV index
The UV index is a maximum of 9 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Check out the climate of Vallejo for all months and discover the best travel time
Temperature charts
These charts show the average temperatures in May in Vallejo, California. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in May in Vallejo
Temperature in May in Vallejo over the years
Precipitation charts
These charts show the average amount of precipitation in May in Vallejo, California. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in May in Vallejo
Total precipitation in May in Vallejo over the years
Daily UV index in May in Vallejo
This chart shows the average daily UV index in May in Vallejo, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Weather experiences in May in Vallejo
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Average weather in Vallejo by month
Click on a month below to see detailed weather info for Vallejo. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.