City break

Hamilton, Ontario weather in July

Temperature, rain and sunshine in July: long-term averages from 30 years of weather data, not a forecast.

86

Holiday weather in July

Excellent

Best time to visit: June – September

What is the weather like in Hamilton, Ontario in July?

In July, Hamilton, Ontario is warm: daytime highs average 26 °C, and nights cool down to about 20 °C. The sun shines for around 9 hours a day. Rain is frequent, with about 10 rainy days and 79 mm in total. All in all, July is an excellent month for a holiday in Hamilton, Ontario.

July compared

How the weather changes from June to August. Tap a month to open it.

JuneJunJulyJulAugustAug
Score818684
Day22°26°25°
Night16°20°19°
Sun8 h9 h8 h
Rain days12109

More details for July

Daylight
15 h 6 min05:52 – 20:58
UV index
9 · very highclear sky, noon (estimate)All months
Muggy days
13 daysdew point 18 °C or moreAll months
Wind
16 km/haverage daily peakAll months
Cloud cover
49 %on averageAll months
Hot days
2 days30 °C or moreAll months
Snow days
0 days1 cm or more of fresh snowAll months
Time zone
UTC−4America/Toronto

How the score comes together

  • Temperatureweight 50 %100 %
  • Sunshineweight 20 %95 %
  • Few rainy daysweight 30 %55 %

Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.

What to pack in July

  • Sunscreen
  • Sunglasses & sun hat
  • Light, breathable clothes
  • Rain jacket or umbrella

Hamilton, Ontario in July: quick answers

Is Hamilton, Ontario hot in July?

Warm rather than hot: in July, daytime highs in Hamilton, Ontario average 26 °C and nights cool to about 20 °C. On about 2 days the thermometer climbs to 30 °C or more.

Does it rain much in Hamilton, Ontario in July?

Rain is frequent, with about 10 rainy days and 79 mm in total.

Hamilton, Ontario month by month

Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences