Maine (Bangor)
May
Weather in Maine for May 2026
Your guide to Maine weather in May - trends and predictions
In general, the average temperature in Maine at the beginning of May is 14.7 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 19.1 °F by the end of May.
The climate of Maine in May is notably wet, with an average of 12 rainy days, and a total of 200.7 mm of precipitation.
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Temperatures
Rain 🌧️
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19
Dry days
12
Rainy days
0
Snow days
16°/7°
Temperatures
15 km/h
Avg max wind
76 %
Avg humidity
Maine Weather May
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What’s the Weather Like in Maine This May?
Discover the average temperatures and weather trends across Maine’s cities this May.
Temperatures trend during May in Maine
See the weather trend as well as the moving average line
May weather in Maine day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| May 1 |  Cloudy | 15° /2° | 0 mm | 4 | |
| May 2 |  Moderate or heavy rain shower | 10° /6° | 4.2 mm | 3 | |
| May 3 | Moderate rain at times | 17° /6° | 8.1 mm | 4 | |
| May 4 | Moderate rain at times | 14° /9° | 5.3 mm | 3 | |
| May 5 |  Overcast | 18° /7° | 0 mm | 4 | |
| May 6 |  Heavy rain at times | 12° /8° | 3.7 mm | 3 | |
| May 7 | Overcast | 17° /8° | 4.5 mm | 4 | |
| May 8 |  Patchy rain possible | 17° /8° | 0.3 mm | 4 | |
| May 9 | Overcast | 13° /6° | 0.5 mm | 3 | |
| May 10 | Moderate or heavy rain shower | 9° /6° | 23.4 mm | 2 | |
| May 11 | Overcast | 15° /7° | 0 mm | 4 | |
| May 12 | Overcast | 16° /5° | 0 mm | 4 | |
| May 13 |  Sunny | 20° /7° | 0 mm | 6 | |
| May 14 | Sunny | 23° /8° | 0 mm | 6 | |
| May 15 | Overcast | 22° /11° | 0 mm | 5 | |
| May 16 | Patchy rain possible | 22° /12° | 0.3 mm | 5 | |
| May 17 | Moderate or heavy rain shower | 14° /9° | 3.9 mm | 3 | |
| May 18 | Moderate or heavy rain shower | 17° /9° | 12.3 mm | 4 | |
| May 19 | Heavy rain at times | 12° /7° | 7.8 mm | 3 | |
| May 20 | Overcast | 11° /6° | 0.3 mm | 3 | |
| May 21 | Patchy rain possible | 11° /6° | 0.1 mm | 3 | |
| May 22 | Patchy rain possible | 10° /6° | 0.5 mm | 3 | |
| May 23 | Moderate or heavy rain shower | 6° /4° | 26.4 mm | 2 | |
| May 24 | Heavy rain at times | 9° /5° | 4.6 mm | 2 | |
| May 25 | Overcast | 11° /5° | 0 mm | 3 | |
| May 26 | Overcast | 19° /8° | 0 mm | 4 | |
| May 27 | Sunny | 25° /10° | 0 mm | 7 | |
| May 28 |  Mist | 27° /8° | 0 mm | 6 | |
| May 29 | Overcast | 19° /12° | 0 mm | 4 | |
| May 30 | Fog | 20° /10° | 0 mm | 5 | |
| May 31 |  Heavy rain | 13° /11° | 94.5 mm | 3 | |
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Important Notice
Our weather forecast for Maine 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 Maine forecast closer to your planned date for the most up-to-date weather information.
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Maine in May - FAQ
What are the expected maximum and minimum temperatures in Maine during May?
Enjoy moderate daytime temperatures of up to 16° and cooler nights around 7°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Maine during May?
Significant rainfall exceeding 200.7 mm is expected in Maine during May, occurring over more than 12 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Maine during May?
The average wind speed in Maine during May is 15 km/h, suggesting breezy to windy conditions, depending on your activities.
May rainfall patterns in Maine
Explore the daily rainfall trends and prepare for Maines May weather 💧
Typically, Maine has 12 rainy days in May with a total of 200.7 mm of rainfall.
UV exposure in Maine during May
Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
Counties in Maine
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