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.
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 |
Nearest destinations
Grimsby: questions and answers
What kind of destination is Grimsby?
Grimsby is a city break in United Kingdom with a oceanic / maritime climate.
How many hours of sunshine does Grimsby get a year?
Grimsby gets about 1,443 hours of sunshine a year, at its best around July.
When is the best time to visit Grimsby?
The sunniest time to visit Grimsby is July, when the Sunshine Score peaks at 73/100 (with August and June close behind). Expect daytime highs around 21°C / 70°F.
What is the least sunny month in Grimsby?
January is the least sunny month in Grimsby, scoring 0/100 with about 59 mm of rain.
How strong is the sun in Grimsby?
The typical midday UV index in Grimsby peaks around 4 (moderate) in May, easing to about 0 (low) in January. Month-by-month midday UV values are in the UV column of the table on this page.
Put the Grimsby sunshine badge on your site
A compact badge showing Grimsby's sunshine at a glance — free to embed under CC BY 4.0. Paste this wherever you'd like it to appear:
Live preview — this is exactly what your readers see: