When to visit
Grimsby?

Discover the best time of year, based on historical climate, temperature, and precipitation.

Grimsby
Ontario · Canada

The best time to visit Grimsby is May, June, August, when the weather, flight prices, and crowds align. — predictable climate

Climate score
October
59

Mixed climate

🌥Mild

1%snow days
Rare snowfall
12%outdoor comfort
Limited outdoor comfort
12%perfect days
Rarely perfect
Warming— +1.4° vs. 15 years agoCooling down through the month
Temperature
10–16°C
Moderate temperature variation · Cold nights — bring layers
Feels like
8–14°C
Dry
Precipitation
84mm
Moderate rain · 12 days
Sunshine
7.3h
Mostly cloudy
Humidity (%)
75%
Dry
Annual Climate Analysis
Temperature, Rain & Feels Like
Rain
Actual Temp
Feels Like
-20°-10°0°10°20°30°40°JanFebMarAprMayJunJulAugSepOctNovDec
International eSIM

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Tourist Crowds
Monthly visitor flow
61
Shoulder season
050100JanFebMarAprMayJunJulAugSepOct61NovDec
Tours & tickets in Grimsby
Browse tours & tickets

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Flights to Grimsby

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Monthly Overview
Score101319348283788282592110
ClimatePolarPolarColdColdMildHumidHumidPleasantPleasantMildColdCold
Temperature-4–1°C-4–3°C0–7°C4–12°C10–18°C16–24°C19–27°C19–26°C16–22°C10–16°C4–10°C0–5°C
Feels like-9–-3°C-10–-3°C-5–3°C0–9°C7–17°C16–26°C21–29°C20–28°C15–22°C8–14°C0–6°C-5–0°C
Precipitation80mm
11 days
66mm
9 days
64mm
10 days
97mm
12 days
55mm
10 days
84mm
11 days
99mm
11 days
72mm
10 days
79mm
10 days
84mm
12 days
63mm
10 days
77mm
11 days
Sunshine3.1h
☀︎ 33%
5.7h
☀︎ 54%
6.8h
☀︎ 57%
8.5h
☀︎ 63%
11.0h
☀︎ 75%
12.6h
☀︎ 82%
12.5h
☀︎ 83%
11.6h
☀︎ 83%
10.0h
☀︎ 80%
7.3h
☀︎ 66%
5.8h
☀︎ 59%
2.9h
☀︎ 32%
WindW · 24 km/hW · 27 km/hW · 26 km/hW · 24 km/hNW · 20 km/hW · 21 km/hW · 19 km/hW · 19 km/hW · 20 km/hW · 23 km/hSW · 25 km/hSW · 26 km/h
Humidity (%)77%71%71%71%73%72%76%77%76%75%73%77%
Perfect days0%0%1%5%29%43%40%51%44%12%1%0%
Dry streak7d7d8d7d9d6d7d8d8d6d7d7d
Sunny streak4d6d8d10d15d20d22d19d15d8d5d4d
Extreme cold82%86%67%15%0%—————18%60%
Temperature+0.7°+2.8°+3.2°-0.0°-0.1°-0.1°+0.6°-0.1°0.0°+1.4°+1.0°+2.2°
RainfallStableStableStableStableStableStableStableStableStableStableStableStable
Ideal warm days0%0%0%0%7%16%33%29%11%1%0%0%
Outdoor comfort0%0%1%5%29%39%28%36%42%12%1%0%
Dry week odds8%8%8%8%15%7%7%8%12%4%8%5%
Heavy rain2%2%2%4%2%3%2%2%3%2%2%2%
Snow days49%49%27%13%1%————1%18%41%
Muggy days—————7%20%18%5%———
Day length9.4h10.5h12.0h13.4h14.7h15.3h15.0h13.9h12.5h11.0h9.7h9.0h
Tourist CrowdsLow seasonLow seasonLow seasonShoulder seasonShoulder seasonHigh seasonHigh seasonHigh seasonHigh seasonShoulder seasonShoulder seasonShoulder season

Frequently asked questions

What is the best time to visit Grimsby?

The best time to visit Grimsby is May, June, August, September, July, with temperatures between 10 °C and 27 °C. The best month is May. May is shoulder season.

What is the weather like in Grimsby?

Grimsby has a climate with an overall score of 4.8/10. Annual temperatures range from -4 °C to 27 °C.

What is the hottest month in Grimsby?

The hottest month in Grimsby is July, with average highs of 27 °C and lows of 19 °C.

What is the rainiest month in Grimsby?

The rainiest month in Grimsby is July, with an average of 99 mm of precipitation.

When is peak season in Grimsby?

Peak season in Grimsby is June, July, August, September. This is the most popular period, with the highest tourism levels and prices.

When is shoulder season in Grimsby?

Shoulder season in Grimsby falls in April, May, October, November, December. It offers a good balance of decent weather and lower prices compared to peak season.