Madison weather in May
May in Madison: nice, rainy, with clean air — an excellent time to visit.
#3 of 12 months in Madison · #303 of 897 destinations to visit in May · comfort 86/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Madison in May
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Madison climate normals — May
| Daytime high | 20°C / 69°F | 😎 nice |
|---|---|---|
| Nighttime low | 10°C / 50°F | |
| Rainfall | 110 mm / 4.3 in | 🌧 rainy |
| Rainy days | 11 days | |
| Humidity | 66% | 💧 humid |
| Dew point | 9°C / 48°F | |
| Sunshine | 9.6 h/day | |
| Daylight | 14.7 h | |
| Wind | 19 km/h / 11 mph | |
| Air quality (US AQI) | 47 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Madison in May — FAQ
- Is May a good time to visit Madison?
- May in Madison: nice, rainy, with clean air — an excellent time to visit. It ranks #3 of 12 months for Madison on SeasonMap's comfort score (86/100).
- What is the weather like in Madison in May?
- In May, Madison averages a daily high of 20.4°C and a low of 9.8°C, with about 110.4 mm of rain over roughly 11.4 rainy days.
- What is the air quality in Madison in May?
- Madison has a mean US Air Quality Index of about 47 in May.