Year-round weather and climate in Grimsby, United Kingdom
Average temperatures in Grimsby run from an average low of 2°C36°F in January up to an average high of 21°C70°F in August. January is the driest month at 9 rainy days; July the wettest at 17 rainy days. Here is the annual climate data, so you know what you are packing for.
Good to know
- Population
- 86K
- Currency
- GBP
- Language
- English
- Time zone
- London
Best time to visit
For the warmest temperatures and best chance of outdoor activities, plan your trip around June, July, and August.
Rain character
Moderate Showers: Rainfall is standard and manageable. A compact travel umbrella or light rain jacket will easily get you through any wet days.
Day-to-night swing
Evening Chill: Temperatures drop by a noticeable <span class="val-c">8°C</span><span class="val-f">14°F</span> when the sun goes down. A light sweater or jacket is usually all you need for evening plans.
Seasonality Profile
Oceanic: Notoriously mild. Cool summers, damp winters, and a persistent chance of rain year-round.
Evening vibe
Cozy Indoor Culture: Evenings are generally crisp, damp, or sweltering. Nightlife centers around indoor venues.
Sightseeing stamina
All-Day Strolling: Weather is generally forgiving for long walking days. Comfortable sneakers are your most important packing item.
Average temperatures, sunshine, and rainfall
Average monthly weather in Grimsby, based on recent historical data. Essential insights on temperature swings, expected rainfall, and daily sunshine.
Bars span the average daily low to high. Jan is typically driest at 9 rainy days (57mm); Jul the wettest at 17 rainy days (107mm).
| Month | Average high | Average low | Daily sunshine | Rainy days | Total rainfall |
|---|---|---|---|---|---|
| Jan | 7°C / 45°F | 2°C / 36°F | 4h | 9 | 57mm |
| Feb | 9°C / 49°F | 4°C / 39°F | 5h | 11 | 49mm |
| Mar | 11°C / 51°F | 4°C / 40°F | 7h | 14 | 57mm |
| Apr | 12°C / 54°F | 6°C / 42°F | 10h | 13 | 69mm |
| May | 15°C / 60°F | 9°C / 48°F | 11h | 11 | 48mm |
| Jun | 19°C / 67°F | 12°C / 53°F | 13h | 12 | 47mm |
| Jul | 21°C / 69°F | 13°C / 56°F | 11h | 17 | 107mm |
| Aug | 21°C / 70°F | 13°C / 56°F | 10h | 13 | 46mm |
| Sep | 19°C / 66°F | 12°C / 53°F | 9h | 14 | 78mm |
| Oct | 15°C / 59°F | 9°C / 49°F | 6h | 13 | 93mm |
| Nov | 10°C / 51°F | 5°C / 42°F | 4h | 13 | 89mm |
| Dec | 9°C / 49°F | 5°C / 42°F | 3h | 14 | 85mm |
Weather data by Open-Meteo.com (opens in a new tab)
Frequently Asked Questions
When is the sunniest time of year to visit Grimsby?
June is the sunniest month in Grimsby, averaging 13 hours of sunshine a day. Pack a pair of sunglasses for clear days.
What clothes should I pack for Grimsby?
Your packing list depends entirely on when you travel. Temperatures in Grimsby swing from an average low of 2°C36°F in January up to 21°C70°F in August. The Packola app builds a tailored packing list for you based on the live weather forecast for your exact travel dates.
Do I need to pack an umbrella for Grimsby?
Grimsby gets rain on about 154 days a year, with July being the wettest. If you're traveling then, pack an umbrella and a light rain jacket.
Pack smarter.
Averages get you close, but the week you travel is what matters. Get the live forecast, a smart packing list, and discover the best local spots and activities in Grimsby with Packola.
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