Grimsby Temperature by Month
The average annual maximum temperature in Grimsby, Lincolnshire, United Kingdom is 15°C (59°F), with daytime highs ranging from 8°C (46°F) in February to 22°C (72°F) in July. This page covers monthly averages, day-night differences, and how Grimsby compares to cities worldwide.
Grimsby Monthly Temperatures
The weather in Grimsby experiences significant differences between warm and cold seasons, with big shifts in temperature. At night, minimum temperatures range from 13°C (55°F) in July to 2°C (36°F) in February.
The chart below illustrates the average maximum day and minimum night temperatures in Grimsby by month:
The coldest point of the day usually falls between 4 AM and 6 AM, with temperatures peaking around 3 PM. July, the city's warmest month, gets 196 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Grimsby vs the United Kingdom
The map below shows the annual temperature across the United Kingdom. You can also select individual months if you want to compare a specific time of year.
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Grimsby vs World: Temperature Compared
Grimsby's average annual maximum temperature is 15°C (59°F). To put that in context, here's how it compares to a few well-known destinations:
Rome, Italy averages 20°C (68°F) annually, with reliably warm summers and comfortable winters.
Glasgow, Scotland averages 13°C (55°F) a year — mild but often grey, with cold winters and rarely hot summers.
Shanghai, China averages 21°C (70°F) a year, with warm summers, mild winters, and a noticeable spring and autumn.
Adelaide, Australia averages 21°C (70°F) a year, with warm summers, mild winters, and relatively low rainfall year-round.
Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.
The readings come from a range of sources — land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.
For cities and regions with significant elevation, altitude is one of the biggest factors shaping local temperatures. As a rule of thumb, temperatures fall by around 6°C for every 1,000 metres gained — so a city at 2,000 metres will typically be around 12°C cooler than a city at sea level in the same region. Higher ground also tends to see more dramatic day-to-night temperature swings, since thinner air loses heat faster after sunset.
For more on Grimsby's weather — including monthly rainfall, sunshine hours, and humidity — visit our Grimsby climate page.
