Fairfield (CA)
May
Weather in Fairfield, California for May 2026
Your guide to Fairfield weather in May - trends and predictions
In general, the average temperature in Fairfield at the beginning of May is 21.6 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 26.9 °F by the end of May.
Precipitation in Fairfield during May is a rare event, with an average of fewer than 2 rainy days.
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Temperatures
Rain 🌧️
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30
Dry days
1
Rainy days
0
Snow days
25°/10°
Temperatures
20 km/h
Avg max wind
56 %
Avg humidity
Fairfield Weather May
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Temperatures trend during May in Fairfield
See the weather trend as well as the moving average line
May weather in Fairfield day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| May 1 |  Sunny | 23° /9° | 0 mm | 6 | |
| May 2 | Sunny | 20° /9° | 0 mm | 5 | |
| May 3 | Sunny | 21° /10° | 0 mm | 6 | |
| May 4 |  Moderate or heavy rain shower | 20° /7° | 13.1 mm | 5 | |
| May 5 |  Cloudy | 21° /8° | 0 mm | 6 | |
| May 6 | Sunny | 23° /9° | 0 mm | 6 | |
| May 7 | Sunny | 23° /8° | 0 mm | 6 | |
| May 8 | Sunny | 26° /10° | 0 mm | 7 | |
| May 9 | Sunny | 29° /13° | 0 mm | 7 | |
| May 10 | Sunny | 30° /10° | 0 mm | 7 | |
| May 11 | Sunny | 25° /10° | 0 mm | 6 | |
| May 12 | Sunny | 22° /10° | 3.8 mm | 6 | |
| May 13 | Sunny | 22° /9° | 0 mm | 6 | |
| May 14 | Sunny | 24° /8° | 0 mm | 6 | |
| May 15 |  Overcast | 25° /10° | 0 mm | 6 | |
| May 16 |  Partly cloudy | 26° /10° | 0 mm | 7 | |
| May 17 | Sunny | 25° /10° | 0 mm | 6 | |
| May 18 | Sunny | 24° /11° | 0 mm | 7 | |
| May 19 | Sunny | 27° /11° | 0 mm | 7 | |
| May 20 | Sunny | 28° /10° | 0 mm | 7 | |
| May 21 | Sunny | 29° /9° | 0 mm | 7 | |
| May 22 | Sunny | 26° /9° | 0 mm | 6 | |
| May 23 | Partly cloudy | 24° /8° | 0 mm | 6 | |
| May 24 | Sunny | 22° /10° | 0 mm | 6 | |
| May 25 |  Patchy rain possible | 20° /9° | 0.1 mm | 5 | |
| May 26 | Sunny | 25° /9° | 0 mm | 6 | |
| May 27 | Sunny | 26° /9° | 0 mm | 7 | |
| May 28 | Overcast | 25° /10° | 0 mm | 6 | |
| May 29 | Sunny | 30° /10° | 0 mm | 7 | |
| May 30 | Sunny | 34° /12° | 0 mm | 8 | |
| May 31 | Sunny | 28° /12° | 0 mm | 7 | |
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Important Notice
Our weather forecast for Fairfield in May is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Fairfield forecast closer to your planned date for the most up-to-date weather information.
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Fairfield in May - FAQ
What are the expected maximum and minimum temperatures in Fairfield during May?
Enjoy moderate daytime temperatures of up to 25° and cooler nights around 10°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Fairfield during May?
In May, Fairfield can expect light to moderate rainfall, totaling 26.5 mm across approximately 1 days. Occasional showers are possible, and planning ahead for them could be helpful.
What are the typical wind conditions in Fairfield during May?
The average wind speed in Fairfield during May is 20 km/h, suggesting breezy to windy conditions, depending on your activities.
May rainfall patterns in Fairfield
Explore the daily rainfall trends and prepare for Fairfields May weather 💧
UV exposure in Fairfield during May
Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
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Where is Fairfield?Get accurate weather forecasts for Fairfield, located at latitude 38.249 and longitude -122.04. Stay updated with localized weather information tailored for Fairfield.
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