Seaham weather

The Seaham weather guide shows monthly weather averages (including daytime and night-time temperatures, rainfall and hours of sunshine) for holidays in Seaham, County Durham, England in 2026/2027.

• Seaham weather averages
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Seaham weather averages

Check the Seaham weather averages for each month of the year including maximum daytime and minimum night-time temperatures, monthly rainfall, number of days with rain and average daily hours of sunshine for Seaham, County Durham, England.

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Seaham weather by month

Check the weather for Seaham, County Durham, England for a particular month by selecting from the list below. This gives the best indication of what to expect from the weather months in advance.

• January
• February
• March
• April
• May
• June
• July
• August
• September
• October
• November
• December

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Seaham weather in January

The average maximum daytime temperature in Seaham in January is a cold 7°C (45°F), while the average minimum night-time temperature is a cold 2°C (36°F). You can expect on average 2 hours of sunshine a day in Seaham during January.

• 7
  7°C max day temperature
• 2
  2 hours of sunshine per day
• 17
  17 days with some rainfall
• 2
  2°C min night temperature
• 46
  46 mm of monthly rainfall

On average 46 mm (1.8 inches) of rain normally falls in Seaham during January with rain falling on 17 days of the month.

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Seaham weather in February

The average maximum daytime temperature in Seaham in February is a cold 7°C (45°F), while the average minimum night-time temperature is a cold 2°C (36°F). You can expect on average 2 hours of sunshine a day in Seaham during February.

• 7
  7°C max day temperature
• 2
  2 hours of sunshine per day
• 14
  14 days with some rainfall
• 2
  2°C min night temperature
• 34
  34 mm of monthly rainfall

On average 34 mm (1.3 inches) of rain normally falls in Seaham during February with rain falling on 14 days of the month.

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Seaham weather in March

The average maximum daytime temperature in Seaham in March is a cool 9°C (48°F), while the average minimum night-time temperature is a cold 3°C (37°F). You can expect on average 3 hours of sunshine a day in Seaham during March.

• 9
  9°C max day temperature
• 3
  3 hours of sunshine per day
• 16
  16 days with some rainfall
• 3
  3°C min night temperature
• 45
  45 mm of monthly rainfall

On average 45 mm (1.8 inches) of rain normally falls in Seaham during March with rain falling on 16 days of the month.

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Seaham weather in April

The average maximum daytime temperature in Seaham in April is a cool 11°C (52°F), while the average minimum night-time temperature is a cold 4°C (39°F). You can expect on average 5 hours of sunshine a day in Seaham during April.

• 11
  11°C max day temperature
• 5
  5 hours of sunshine per day
• 14
  14 days with some rainfall
• 4
  4°C min night temperature
• 48
  48 mm of monthly rainfall

On average 48 mm (1.9 inches) of rain normally falls in Seaham during April with rain falling on 14 days of the month.

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Seaham weather in May

The average maximum daytime temperature in Seaham in May is a comfortable 14°C (57°F), while the average minimum night-time temperature is a cold 7°C (45°F). You can expect on average 6 hours of sunshine a day in Seaham during May.

• 14
  14°C max day temperature
• 6
  6 hours of sunshine per day
• 13
  13 days with some rainfall
• 7
  7°C min night temperature
• 49
  49 mm of monthly rainfall

On average 49 mm (1.9 inches) of rain normally falls in Seaham during May with rain falling on 13 days of the month.

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Seaham weather in June

The average maximum daytime temperature in Seaham in June is a comfortable 16°C (61°F), while the average minimum night-time temperature is a cool 9°C (48°F). You can expect on average 6 hours of sunshine a day in Seaham during June.

• 16
  16°C max day temperature
• 6
  6 hours of sunshine per day
• 13
  13 days with some rainfall
• 9
  9°C min night temperature
• 55
  55 mm of monthly rainfall

On average 55 mm (2.2 inches) of rain normally falls in Seaham during June with rain falling on 13 days of the month.

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Seaham weather in July

The average maximum daytime temperature in Seaham in July is a comfortable 19°C (66°F), while the average minimum night-time temperature is a cool 12°C (54°F). You can expect on average 5 hours of sunshine a day in Seaham during July.

• 19
  19°C max day temperature
• 5
  5 hours of sunshine per day
• 13
  13 days with some rainfall
• 12
  12°C min night temperature
• 45
  45 mm of monthly rainfall

On average 45 mm (1.8 inches) of rain normally falls in Seaham during July with rain falling on 13 days of the month.

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Seaham weather in August

The average maximum daytime temperature in Seaham in August is a comfortable 19°C (66°F), while the average minimum night-time temperature is a cool 12°C (54°F). You can expect on average 5 hours of sunshine a day in Seaham during August.

• 19
  19°C max day temperature
• 5
  5 hours of sunshine per day
• 14
  14 days with some rainfall
• 12
  12°C min night temperature
• 53
  53 mm of monthly rainfall

On average 53 mm (2.1 inches) of rain normally falls in Seaham during August with rain falling on 14 days of the month.

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Seaham weather in September

The average maximum daytime temperature in Seaham in September is a comfortable 17°C (63°F), while the average minimum night-time temperature is a cool 10°C (50°F). You can expect on average 4 hours of sunshine a day in Seaham during September.

• 17
  17°C max day temperature
• 4
  4 hours of sunshine per day
• 14
  14 days with some rainfall
• 10
  10°C min night temperature
• 50
  50 mm of monthly rainfall

On average 50 mm (2 inches) of rain normally falls in Seaham during September with rain falling on 14 days of the month.

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Seaham weather in October

The average maximum daytime temperature in Seaham in October is a cool 13°C (55°F), while the average minimum night-time temperature is a cold 7°C (45°F). You can expect on average 3 hours of sunshine a day in Seaham during October.

• 13
  13°C max day temperature
• 3
  3 hours of sunshine per day
• 16
  16 days with some rainfall
• 7
  7°C min night temperature
• 54
  54 mm of monthly rainfall

On average 54 mm (2.1 inches) of rain normally falls in Seaham during October with rain falling on 16 days of the month.

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Seaham weather in November

The average maximum daytime temperature in Seaham in November is a cool 9°C (48°F), while the average minimum night-time temperature is a cold 4°C (39°F). You can expect on average 2 hours of sunshine a day in Seaham during November.

• 9
  9°C max day temperature
• 2
  2 hours of sunshine per day
• 18
  18 days with some rainfall
• 4
  4°C min night temperature
• 63
  63 mm of monthly rainfall

On average 63 mm (2.5 inches) of rain normally falls in Seaham during November with rain falling on 18 days of the month.

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Seaham weather in December

The average maximum daytime temperature in Seaham in December is a cold 7°C (45°F), while the average minimum night-time temperature is a cold 3°C (37°F). You can expect on average 2 hours of sunshine a day in Seaham during December.

• 7
  7°C max day temperature
• 2
  2 hours of sunshine per day
• 18
  18 days with some rainfall
• 3
  3°C min night temperature
• 54
  54 mm of monthly rainfall

On average 54 mm (2.1 inches) of rain normally falls in Seaham during December with rain falling on 18 days of the month.

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