Hailsham weather

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

• Hailsham weather averages
• Hailsham weather by month
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Hailsham weather averages

Check the Hailsham 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 Hailsham, East Sussex, England.

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Hailsham weather by month

Check the weather for Hailsham, East Sussex, 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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Hailsham weather in January

The average maximum daytime temperature in Hailsham in January 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 Hailsham during January.

• 7
  7°C max day temperature
• 2
  2 hours of sunshine per day
• 17
  17 days with some rainfall
• 3
  3°C min night temperature
• 83
  83 mm of monthly rainfall

On average 83 mm (3.3 inches) of rain normally falls in Hailsham during January with rain falling on 17 days of the month.

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Hailsham weather in February

The average maximum daytime temperature in Hailsham in February 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 3 hours of sunshine a day in Hailsham during February.

• 7
  7°C max day temperature
• 3
  3 hours of sunshine per day
• 14
  14 days with some rainfall
• 3
  3°C min night temperature
• 52
  52 mm of monthly rainfall

On average 52 mm (2 inches) of rain normally falls in Hailsham during February with rain falling on 14 days of the month.

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Hailsham weather in March

The average maximum daytime temperature in Hailsham in March 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 4 hours of sunshine a day in Hailsham during March.

• 9
  9°C max day temperature
• 4
  4 hours of sunshine per day
• 14
  14 days with some rainfall
• 4
  4°C min night temperature
• 57
  57 mm of monthly rainfall

On average 57 mm (2.2 inches) of rain normally falls in Hailsham during March with rain falling on 14 days of the month.

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Hailsham weather in April

The average maximum daytime temperature in Hailsham in April is a cool 12°C (54°F), while the average minimum night-time temperature is a cold 5°C (41°F). You can expect on average 5 hours of sunshine a day in Hailsham during April.

• 12
  12°C max day temperature
• 5
  5 hours of sunshine per day
• 12
  12 days with some rainfall
• 5
  5°C min night temperature
• 47
  47 mm of monthly rainfall

On average 47 mm (1.9 inches) of rain normally falls in Hailsham during April with rain falling on 12 days of the month.

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Hailsham weather in May

The average maximum daytime temperature in Hailsham in May is a comfortable 15°C (59°F), while the average minimum night-time temperature is a cool 9°C (48°F). You can expect on average 7 hours of sunshine a day in Hailsham during May.

• 15
  15°C max day temperature
• 7
  7 hours of sunshine per day
• 12
  12 days with some rainfall
• 9
  9°C min night temperature
• 47
  47 mm of monthly rainfall

On average 47 mm (1.9 inches) of rain normally falls in Hailsham during May with rain falling on 12 days of the month.

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Hailsham weather in June

The average maximum daytime temperature in Hailsham in June is a comfortable 18°C (64°F), while the average minimum night-time temperature is a cool 11°C (52°F). You can expect on average 7 hours of sunshine a day in Hailsham during June.

• 18
  18°C max day temperature
• 7
  7 hours of sunshine per day
• 11
  11 days with some rainfall
• 11
  11°C min night temperature
• 56
  56 mm of monthly rainfall

On average 56 mm (2.2 inches) of rain normally falls in Hailsham during June with rain falling on 11 days of the month.

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Hailsham weather in July

The average maximum daytime temperature in Hailsham in July is a comfortable 20°C (68°F), while the average minimum night-time temperature is a comfortable 14°C (57°F). You can expect on average 7 hours of sunshine a day in Hailsham during July.

• 20
  20°C max day temperature
• 7
  7 hours of sunshine per day
• 10
  10 days with some rainfall
• 14
  14°C min night temperature
• 41
  41 mm of monthly rainfall

On average 41 mm (1.6 inches) of rain normally falls in Hailsham during July with rain falling on 10 days of the month.

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Hailsham weather in August

The average maximum daytime temperature in Hailsham in August is a comfortable 21°C (70°F), while the average minimum night-time temperature is a comfortable 14°C (57°F). You can expect on average 7 hours of sunshine a day in Hailsham during August.

• 21
  21°C max day temperature
• 7
  7 hours of sunshine per day
• 10
  10 days with some rainfall
• 14
  14°C min night temperature
• 49
  49 mm of monthly rainfall

On average 49 mm (1.9 inches) of rain normally falls in Hailsham during August with rain falling on 10 days of the month.

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Hailsham weather in September

The average maximum daytime temperature in Hailsham in September is a comfortable 18°C (64°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 Hailsham during September.

• 18
  18°C max day temperature
• 5
  5 hours of sunshine per day
• 12
  12 days with some rainfall
• 12
  12°C min night temperature
• 76
  76 mm of monthly rainfall

On average 76 mm (3 inches) of rain normally falls in Hailsham during September with rain falling on 12 days of the month.

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Hailsham weather in October

The average maximum daytime temperature in Hailsham in October is a comfortable 15°C (59°F), while the average minimum night-time temperature is a cool 9°C (48°F). You can expect on average 4 hours of sunshine a day in Hailsham during October.

• 15
  15°C max day temperature
• 4
  4 hours of sunshine per day
• 14
  14 days with some rainfall
• 9
  9°C min night temperature
• 97
  97 mm of monthly rainfall

On average 97 mm (3.8 inches) of rain normally falls in Hailsham during October with rain falling on 14 days of the month.

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Hailsham weather in November

The average maximum daytime temperature in Hailsham in November is a cool 11°C (52°F), while the average minimum night-time temperature is a cold 6°C (43°F). You can expect on average 2 hours of sunshine a day in Hailsham during November.

• 11
  11°C max day temperature
• 2
  2 hours of sunshine per day
• 15
  15 days with some rainfall
• 6
  6°C min night temperature
• 91
  91 mm of monthly rainfall

On average 91 mm (3.6 inches) of rain normally falls in Hailsham during November with rain falling on 15 days of the month.

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Hailsham weather in December

The average maximum daytime temperature in Hailsham in December 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 Hailsham during December.

• 9
  9°C max day temperature
• 2
  2 hours of sunshine per day
• 16
  16 days with some rainfall
• 4
  4°C min night temperature
• 86
  86 mm of monthly rainfall

On average 86 mm (3.4 inches) of rain normally falls in Hailsham during December with rain falling on 16 days of the month.

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