Best Time to Visit St. Catharines: Month-by-Month Guide

Best months for St. Catharines: August, September, July, June.

  • Best months for St. Catharines: August, September, July, June.
  • Peak season is July, August, June. Expect higher prices and more visitors (estimated from the climate, not from visitor counts).
  • Shoulder season: September. Good weather without the busiest period.
  • Wettest months: October, December, January.
  • The least pleasant month is January (score 3.5).

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

When is the best time to visit St. Catharines?

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

When is the rainy season in St. Catharines?

The wettest months are October, December, January.