Grimsby weather by month & the best time to visit
🇬🇧 United Kingdom · city break · oceanic / maritime climate
The best time to visit Grimsby is July — its sunniest month (Sunshine Score 73/100), with August and June close behind. Grimsby averages about 1,443 hours of sunshine a year. Daytime highs around 21°C / 70°F and roughly 73 mm of rain in July.
Jump to: month-by-month table · nearby alternatives · embed this data
- Sun hours / year
- 1,443
- Sunniest month
- July
- Peak score
- 73/100
- Rain / year
- 743 mm
- Snow / year
- ≈10 cm
- Midday UV at peak
- 4 (moderate)
- Population
- 1.5M
- Elevation
- 25 m

When is the best time to visit Grimsby?
For sunshine, the best time to visit Grimsby is July, then August and June. The dullest month is January (0/100, 59 mm of rain). The full month-by-month picture is in the table below.
How sunny is Grimsby?
Grimsby isn't a sunny place by world standards: about 1,443 hours of sunshine a year. 73 Sunshine Score points separate July (73) from January (0), so the month you pick matters. It ranks #18 of 48 destinations in United Kingdom for annual sunshine, above the national median of 1,345 hours. The year's 743 mm of rain spreads fairly evenly across the months, with no pronounced dry season.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV |
|---|---|---|---|---|---|
| January | 0 | 6° / 43°F | 1° / 34°F | 59 mm | 0 |
| February | 0 | 7° / 45°F | 1° / 34°F | 51 mm | 1 |
| March | 13 | 10° / 50°F | 2° / 36°F | 50 mm | 2 |
| April | 33 | 13° / 55°F | 4° / 39°F | 47 mm | 3 |
| May | 51 | 16° / 61°F | 7° / 45°F | 57 mm | 4 |
| June | 67 | 19° / 66°F | 10° / 50°F | 75 mm | 4 |
| July | 73 | 21° / 70°F | 12° / 54°F | 73 mm | 4 |
| August | 73 | 21° / 70°F | 12° / 54°F | 75 mm | 4 |
| September | 64 | 18° / 64°F | 9° / 48°F | 52 mm | 3 |
| October | 37 | 14° / 57°F | 7° / 45°F | 72 mm | 1 |
| November | 12 | 10° / 50°F | 4° / 39°F | 68 mm | 0 |
| December | 0 | 6° / 43°F | 2° / 36°F | 64 mm | 0 |
See Grimsby on the interactive sunshine globe →
Nearby places for sunshine
- Leeds United Kingdom · 92 km · best in Jul · 1,444 h sun/yr
- Nottingham United Kingdom · 105 km · best in Jul · 1,563 h sun/yr
- Manchester United Kingdom · 130 km · best in Jul · 1,454 h sun/yr
- Norwich United Kingdom · 148 km · best in Jun · 1,586 h sun/yr
- Birmingham United Kingdom · 156 km · best in Jul · 1,561 h sun/yr
- Liverpool United Kingdom · 168 km · best in Jul · 1,453 h sun/yr
Nearest destinations
- Middlesbrough United Kingdom · 125 km · 1,365 h sun/yr · best in Jul
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