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Seaham Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Seaham.
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Climate overview of Seaham
The climate in Seaham, Durham, United Kingdom, is marked by large temperature swings across the seasons, ranging from 20°C (68°F) in July to 8°C (46°F) in January.
The city receives around 770 mm (30 in) of rainfall per year. It experiences pleasant summers and cold winters. August is the wettest month and March the driest. Sunshine peaks in May, when the city sees around 6.4 hours of sunshine per day.
Seaham Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Seaham - and find the best time to visit.
Monthly Temperature in Seaham
In Seaham, temperatures differ significantly between summer and winter months. On average, daytime temperatures range from a pleasant 20°C (68°F) in July to a chilly 8°C (46°F) in January.
Nighttime temperatures range from 13°C (55°F) in July to 3°C (37°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Seaham
On average, Seaham receives a reasonable amount of rainfall, with an annual precipitation of 770 mm (30 in). The wettest period in Seaham occurs in August, which receives around 74 mm (2.9 in) of precipitation. During the driest month, March, Seaham experiences moderate rainfall, totaling 51 mm (2 in). The consistent precipitation levels throughout the year contribute to a relatively stable climate. For more details, please visit our Seaham Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Seaham
In Seaham, summer days are longer and more sunny, with daily sunshine hours peaking at 6.4 hours in May. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 1.8 hours per average day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Data from: Sunderland, the United Kingdom (8 KM, 5 Miles).
Daily hours of sunshine
Data from: Sunderland, the United Kingdom (8 KM, 5 Miles).
Best Time to Visit Seaham
For comfortable weather, consider visiting Seaham in July and August. Conditions are usually least favourable in January, February, March and December.
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
Jan
cold
Feb
cold
Mar
cold
Apr
mixed
May
good
Jun
very good
Jul
excellent
Aug
excellent
Sep
very good
Oct
good
Nov
mixed
Dec
cold
- Best overall: July and August
- Warmest weather: July and August
- Most sunshine: May and July
- Seasonal pattern: Pleasant summers and cold winters
Frequently asked questions about the climate in Seaham
What is the best time to visit Seaham?
July and August typically offer the most optimal weather in Seaham. In contrast, January, February, March and December tend to have less optimal conditions. Seaham has pleasant summers and cold winters.
What temperatures can I expect in Seaham?
Daytime highs range from 8°C (46°F) in January to 20°C (68°F) in July. Nighttime lows range from 3°C (37°F) to 13°C (55°F). Temperatures vary considerably through the year.
How much rain does Seaham get?
Annual rainfall is around 770 mm (30 in). August is the wettest month with 74 mm (2.9 in), while March is the driest with 51 mm (2 in).
How sunny is Seaham?
Seaham receives around 1,528 hours of sunshine per year. May is the sunniest month with 192 hours, while December is the cloudiest with just 53 hours.
Seaham 3-Day Forecast
Seaham on the map
Seaham is highlighted - select any city to see its climate.
Popular in October
Where to go in October - average daytime high across popular destinations.
London
16°C (61°F) Bath15°C (59°F) Torquay16°C (61°F) Manchester14°C (57°F) York15°C (59°F) Blackpool
15°C (59°F) Edinburgh13°C (55°F) Glasgow14°C (57°F) Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
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