Nelson weather in May
May in Nelson: cool, soaked, with clean air — fine if you can take 12 rainy days.
#9 of 12 months in Nelson · #691 of 897 destinations to visit in May · comfort 72/100 (tier B)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Nelson in May
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Nelson climate normals — May
| Daytime high | 16°C / 60°F | 🙂 cool |
|---|---|---|
| Nighttime low | 9°C / 49°F | |
| Rainfall | 173 mm / 6.8 in | ⛈ soaked |
| Rainy days | 12 days | |
| Humidity | 88% | 💦 very humid |
| Dew point | 11°C / 51°F | |
| Sunshine | 7.1 h/day | |
| Daylight | 9.8 h | |
| Wind | 15 km/h / 9 mph | |
| Air quality (US AQI) | 17 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Nelson in May — FAQ
- Is May a good time to visit Nelson?
- May in Nelson: cool, soaked, with clean air — fine if you can take 12 rainy days. It ranks #9 of 12 months for Nelson on SeasonMap's comfort score (72/100).
- What is the weather like in Nelson in May?
- In May, Nelson averages a daily high of 15.5°C and a low of 9.2°C, with about 173.2 mm of rain over roughly 11.8 rainy days.
- What is the air quality in Nelson in May?
- Nelson has a mean US Air Quality Index of about 17 in May.