Hamilton weather in April
April in Hamilton: nice, rainy, with clean air — an excellent time to visit.
#3 of 12 months in Hamilton · #280 of 604 destinations to visit in April · comfort 80/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Hamilton climate normals — April
| Daytime high | 20°C / 69°F | 😎 nice |
|---|---|---|
| Nighttime low | 19°C / 65°F | |
| Feels like (high) | 19°C / 66°F | |
| Rainfall | 80 mm / 3.1 in | 🌧 rainy |
| Rainy days | 11 days | |
| Humidity | 76% | 💦 very humid |
| Dew point | 15°C / 59°F | |
| Sunshine | 10.5 h/day | |
| Daylight | 13 h | |
| Wind | 34 km/h / 21 mph | |
| Air quality (US AQI) | 49 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is Hamilton?
Loading map…
Hamilton in April — FAQ
- Is April a good time to visit Hamilton?
- April in Hamilton: nice, rainy, with clean air — an excellent time to visit. It ranks #3 of 12 months for Hamilton on SeasonMap's comfort score (80/100).
- What is the weather like in Hamilton in April?
- In April, Hamilton averages a daily high of 20.3°C and a low of 18.5°C, with about 80 mm of rain over roughly 11.4 rainy days.
- What is the air quality in Hamilton in April?
- Hamilton has a mean US Air Quality Index of about 49 in April.