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
As Fairfield welcomes May, the average high-temperature displays a subtle shift, adjusting from a pleasant 68.7°F (20.4°C) in April to a moderately hot 74.8°F (23.8°C). May nights present a stark temperature decrease to a frosty 49.8°F (9.9°C).Humidity
The average relative humidity in May is 62%.Rainfall
In May, in Fairfield, California, the rain falls for 4.6 days. Throughout May, 0.59" (15mm) of precipitation is accumulated. Throughout the year, there are 71.4 rainfall days, and 12.13" (308mm) of precipitation is accumulated.Daylight
In May, the average length of the day in Fairfield is 14h and 16min.On the first day of the month, sunrise is at 6:10 am and sunset at 7:59 pm. On the last day of May, in Fairfield, sunrise is at 5:46 am and sunset at 8:25 pm PDT.
Sunshine
In May, the average sunshine is 10.9h.UV index
The average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the average person.Note: An average maximum UV index of 5 in May leads to these recommendations:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Frequently asked questions
What is the temperature in May in Fairfield?
What is the average humidity in May in Fairfield?
How much does it rain in Fairfield in May?
What is the average length of the day in May in Fairfield?
When is the sunrise / sunset in May in Fairfield?
How long on average sun shines in May in Fairfield?
What is the UV index reading in May in Fairfield?
Average temperature in May
Fairfield, CA
- Average high temperature in May: 74.8°F
The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is December (54.9°F).
- Average low temperature in May: 49.8°F
The month with the highest average low temperature is September (57.6°F).
The coldest month (with the lowest average low temperature) is January (41.5°F).
Average pressure in May
Fairfield, 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
Fairfield, CA
- Average wind speed in May: 7mph
The windiest months (with the highest average wind speed) are May, June and July (7mph).
The calmest months (with the lowest average wind speed) are January and November (4.5mph).
Average humidity in May
Fairfield, CA
- Average humidity in May: 62%
The month with the highest relative humidity is March (75%).
The month with the lowest relative humidity is September (52%).
Average rainfall in May
Fairfield, CA
- Average rainfall in May: 0.59"
The wettest month (with the highest rainfall) is February (2.4").
The driest month (with the least rainfall) is August (0").
Average rainfall days in May
Fairfield, CA
- Average rainfall days in May: 4.6 days
The month with the highest number of rainy days is March (12.9 days).
The month with the least rainy days is August (0.7 days).
Average daylight in May /
Average sunshine in May
Fairfield, CA
- Average daylight in May: 14h and 2min
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 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 42min).
Average sunshine days in May
Fairfield, CA
- Average sunshine days in May: 25.6 days
The month with the most sunshine days is August (30.2 days).
The month with the least sunshine days is March (17 days).
Average UV index in May
Fairfield, 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
Fairfield, CA
- Average cloud cover in May: 21
The months with the most cloud cover are March and December (Cloud cover 37).
The month with the least cloud cover is July (Cloud cover 5).
Average visibility in May
Fairfield, 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).
Fairfield, California, USA
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