St. Catharines in July

7.6out of 10

Yes, a good time to go

Warm and comfortable: highs around 25°C. Frequent rain: about 11 rainy days.

25°CAvg high
20°CAvg low
11Rainy days (87 mm)
14:54 hDaylight
05:56Sunrise · 20:49 Sunset

Why this score

  • Warm and comfortable: highs around 25°C
  • Frequent rain: about 11 rainy days

What to wear and pack

  • T-shirts and light layers
  • Rain jacket or compact umbrella

How reliable is the forecast?

Rainfall in July is fairly consistent from year to year (2.9 days). Averages cover 30 years (1991–2020). Individual days can differ a lot.

Year at a glance

0° -5° J 0° -6° F 4° -2° M 10° 4° A 16° 10° M 22° 16° J 25° 20° J 25° 19° A 21° 16° S 15° 10° O 8° 4° N 3° -1° D Rainy days

Weather by month

MonthAvg highAvg lowRainfall Rainy daysHumiditySunshine Score
January 0°C-5°C76 mm 12– – 3.5
February 0°C-6°C60 mm 9– – 3.9
March 4°C-2°C73 mm 10– – 4.6
April 10°C4°C97 mm 11– – 5.5
May 16°C10°C84 mm 11– – 6.5
June 22°C16°C92 mm 11– – 7.5
July 25°C20°C87 mm 11– – 7.6
August 25°C19°C76 mm 10– – 7.8
September 21°C16°C84 mm 9– – 7.7
October 15°C10°C92 mm 12– – 6.2
November 8°C4°C82 mm 11– – 5.4
December 3°C-1°C78 mm 12– – 4.3

Frequently asked questions

How hot is St. Catharines in July?

Daytime highs average 25°C and nights about 20°C.

When is the best time to visit St. Catharines?

The best months are August, September, July, June.