May weather forecastOakville, CA
May
Weather in May
The last month of the spring, May, is a warm month in Oakville, California, with an average temperature varying between 48.2°F (9°C) and 73.6°F (23.1°C).Temperature
As April transitions into May, Oakville notices a gentle rise in the average high-temperature, transitioning from a pleasant 68°F (20°C) to a moderately hot 73.6°F (23.1°C). Oakville experiences a significant contrast between daily highs and an average nighttime temperature of 48.2°F (9°C) during May.Humidity
In Oakville, the average relative humidity in May is 65%.Rainfall
In May, the rain falls for 5.6 days. Throughout May, 0.83" (21mm) of precipitation is accumulated. Throughout the year, there are 77.8 rainfall days, and 16.02" (407mm) of precipitation is accumulated.Daylight
In Oakville, the average length of the day in May is 14h and 17min.On the first day of the month, sunrise is at 6:11 am and sunset at 8:01 pm. On the last day of May, sunrise is at 5:47 am and sunset at 8:27 pm PDT.
Sunshine
In Oakville, the average sunshine in May is 10.7h.UV index
The average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for average individuals.Note: In May, the maximum UV index of 5 transforms into these recommendations:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Enhance your sun protection with tightly woven, yet airy clothing.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Oakville, CA
- Average high temperature in May: 73.6°F
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is December (54.5°F).
- Average low temperature in May: 48.2°F
The month with the highest average low temperature is August (55.4°F).
The coldest month (with the lowest average low temperature) is December (40.1°F).
Average pressure in May
Oakville, CA
- Average pressure in May: 29.97"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are June and August (29.91"Hg).
Average wind speed in May
Oakville, CA
- Average wind speed in May: 6mph
The windiest month (with the highest average wind speed) is May (6mph).
The calmest month (with the lowest average wind speed) is November (4.3mph).
Average humidity in May
Oakville, CA
- Average humidity in May: 65%
The month with the highest relative humidity is March (76%).
The month with the lowest relative humidity is September (54%).
Average rainfall in May
Oakville, CA
- Average rainfall in May: 0.83"
The wettest month (with the highest rainfall) is February (3.43").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in May
Oakville, CA
- Average rainfall days in May: 5.6 days
The month with the highest number of rainy days is March (13.9 days).
The month with the least rainy days is August (0.9 days).
Average daylight in May /
Average sunshine in May
Oakville, CA
- Average daylight in May: 14h and 18min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in May: 10h and 42min
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 36min).
Average sunshine days in May
Oakville, CA
- Average sunshine days in May: 24.1 days
The month with the most sunshine days is July (29.4 days).
The month with the least sunshine days is March (15.8 days).
Average UV index in May
Oakville, 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
Oakville, CA
- Average cloud cover in May: 25
The month with the most cloud cover is March (Cloud cover 40).
The month with the least cloud cover is July (Cloud cover 6).
Average visibility in May
Oakville, 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).
