Fairfax (VA)
May
Weather in Fairfax, Virginia for May 2027
Your guide to Fairfax weather in May - trends and predictions
In general, the average temperature in Fairfax at the beginning of May is 21.8 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of 23 °C by the end of May.
Fairfax in May brings notable rainfall, with an average of 16 rainy days and a total precipitation of 265.3 mm.
Is May a good time to visit Fairfax? check out the best time to travel to Fairfax page.
✨ Is May a good time to visit Fairfax? – Ask the AI Weatherman
Temperatures
Rain 🌧️
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15
Dry days
16
Rainy days
0
Snow days
22°/13°
Temperatures
15 km/h
Avg max wind
73 %
Avg humidity
Fairfax Weather May
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Temperatures trend during May in Fairfax
See the weather trend as well as the moving average line
May weather in Fairfax day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| May 1 |  Light rain shower | 21° /12° | 0.6 mm | 6 | |
| May 2 |  Overcast | 22° /13° | 0 mm | 7 | |
| May 3 |  Sunny | 24° /13° | 0.5 mm | 7 | |
| May 4 |  Moderate rain | 20° /12° | 19.7 mm | 6 | |
| May 5 |  Light rain | 23° /14° | 9.6 mm | 7 | |
| May 6 | Light rain | 23° /16° | 6.4 mm | 5 | |
| May 7 | Patchy rain possible | 20° /14° | 1.8 mm | 4 | |
| May 8 |  Patchy light rain with thunder | 24° /13° | 0.4 mm | 7 | |
| May 9 |  Heavy rain | 21° /12° | 26.9 mm | 6 | |
| May 10 | Moderate rain | 20° /11° | 10.8 mm | 6 | |
| May 11 | Light drizzle | 18° /11° | 1.5 mm | 4 | |
| May 12 | Light rain | 17° /9° | 6.2 mm | 6 | |
| May 13 | Heavy rain | 22° /12° | 25.8 mm | 7 | |
| May 14 | Moderate rain | 19° /13° | 11 mm | 5 | |
| May 15 | Moderate rain | 22° /14° | 11.1 mm | 6 | |
| May 16 | Patchy rain possible | 26° /15° | 0.2 mm | 8 | |
| May 17 | Light rain | 27° /17° | 4.3 mm | 6 | |
| May 18 | Moderate rain | 25° /16° | 5.3 mm | 7 | |
| May 19 | Patchy rain possible | 25° /15° | 0.1 mm | 7 | |
| May 20 | Light rain | 24° /14° | 2.6 mm | 6 | |
| May 21 | Moderate rain | 22° /13° | 23.1 mm | 5 | |
| May 22 | Moderate rain | 22° /13° | 10.1 mm | 5 | |
| May 23 | Light rain | 18° /12° | 6.5 mm | 4 | |
| May 24 | Patchy rain possible | 23° /13° | 1.5 mm | 5 | |
| May 25 |  Thundery outbreaks possible | 23° /14° | 2.6 mm | 5 | |
| May 26 | Patchy light rain with thunder | 25° /16° | 4.6 mm | 5 | |
| May 27 |  Moderate rain at times | 24° /16° | 6.1 mm | 5 | |
| May 28 | Moderate rain | 21° /14° | 20.1 mm | 7 | |
| May 29 | Light rain | 23° /12° | 3.1 mm | 7 | |
| May 30 | Light rain | 22° /15° | 7.2 mm | 7 | |
| May 31 | Heavy rain | 22° /11° | 35.6 mm | 7 | |
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Important Notice
Our weather forecast for Fairfax 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 Fairfax forecast closer to your planned date for the most up-to-date weather information.
Change Month
Fairfax in May - FAQ
What are the expected maximum and minimum temperatures in Fairfax during May?
Enjoy moderate daytime temperatures of up to 22° and cooler nights around 13°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Fairfax during May?
Significant rainfall exceeding 265.3 mm is expected in Fairfax during May, occurring over more than 16 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Fairfax during May?
The average wind speed in Fairfax during May is 15 km/h, suggesting breezy to windy conditions, depending on your activities.
May rainfall patterns in Fairfax
Explore the daily rainfall trends and prepare for Fairfaxs May weather 💧
Typically, Fairfax has 16 rainy days in May with a total of 265.3 mm of rainfall.
UV exposure in Fairfax during May
Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
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