Thornbury weather

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

• Thornbury weather averages
• Thornbury weather by month
• Back to Gloucestershire
• Back to England

Thornbury weather averages

Check the Thornbury 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 Thornbury, Gloucestershire, England.

Back to top

Thornbury weather by month

Check the weather for Thornbury, Gloucestershire, 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

Back to top

Thornbury weather in January

The average maximum daytime temperature in Thornbury in January is a cold 7°C (45°F), while the average minimum night-time temperature is a cold 1°C (34°F). You can expect on average 2 hours of sunshine a day in Thornbury during January.

• 7
  7°C max day temperature
• 2
  2 hours of sunshine per day
• 19
  19 days with some rainfall
• 1
  1°C min night temperature
• 108
  108 mm of monthly rainfall

On average 108 mm (4.3 inches) of rain normally falls in Thornbury during January with rain falling on 19 days of the month.

Back to months

Thornbury weather in February

The average maximum daytime temperature in Thornbury in February is a cold 7°C (45°F), while the average minimum night-time temperature is a cold 1°C (34°F). You can expect on average 2 hours of sunshine a day in Thornbury during February.

• 7
  7°C max day temperature
• 2
  2 hours of sunshine per day
• 15
  15 days with some rainfall
• 1
  1°C min night temperature
• 85
  85 mm of monthly rainfall

On average 85 mm (3.3 inches) of rain normally falls in Thornbury during February with rain falling on 15 days of the month.

Back to months

Thornbury weather in March

The average maximum daytime temperature in Thornbury in March is a cool 10°C (50°F), while the average minimum night-time temperature is a cold 3°C (37°F). You can expect on average 4 hours of sunshine a day in Thornbury during March.

• 10
  10°C max day temperature
• 4
  4 hours of sunshine per day
• 17
  17 days with some rainfall
• 3
  3°C min night temperature
• 79
  79 mm of monthly rainfall

On average 79 mm (3.1 inches) of rain normally falls in Thornbury during March with rain falling on 17 days of the month.

Back to months

Thornbury weather in April

The average maximum daytime temperature in Thornbury in April is a cool 12°C (54°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 Thornbury during April.

• 12
  12°C max day temperature
• 5
  5 hours of sunshine per day
• 15
  15 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 Thornbury during April with rain falling on 15 days of the month.

Back to months

Thornbury weather in May

The average maximum daytime temperature in Thornbury in May is a comfortable 16°C (61°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 Thornbury during May.

• 16
  16°C max day temperature
• 6
  6 hours of sunshine per day
• 14
  14 days with some rainfall
• 7
  7°C min night temperature
• 63
  63 mm of monthly rainfall

On average 63 mm (2.5 inches) of rain normally falls in Thornbury during May with rain falling on 14 days of the month.

Back to months

Thornbury weather in June

The average maximum daytime temperature in Thornbury in June is a comfortable 19°C (66°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 Thornbury during June.

• 19
  19°C max day temperature
• 7
  7 hours of sunshine per day
• 13
  13 days with some rainfall
• 9
  9°C min night temperature
• 63
  63 mm of monthly rainfall

On average 63 mm (2.5 inches) of rain normally falls in Thornbury during June with rain falling on 13 days of the month.

Back to months

Thornbury weather in July

The average maximum daytime temperature in Thornbury in July is a comfortable 21°C (70°F), while the average minimum night-time temperature is a cool 12°C (54°F). You can expect on average 6 hours of sunshine a day in Thornbury during July.

• 21
  21°C max day temperature
• 6
  6 hours of sunshine per day
• 13
  13 days with some rainfall
• 12
  12°C min night temperature
• 54
  54 mm of monthly rainfall

On average 54 mm (2.1 inches) of rain normally falls in Thornbury during July with rain falling on 13 days of the month.

Back to months

Thornbury weather in August

The average maximum daytime temperature in Thornbury in August is a comfortable 21°C (70°F), while the average minimum night-time temperature is a cool 12°C (54°F). You can expect on average 6 hours of sunshine a day in Thornbury during August.

• 21
  21°C max day temperature
• 6
  6 hours of sunshine per day
• 14
  14 days with some rainfall
• 12
  12°C min night temperature
• 72
  72 mm of monthly rainfall

On average 72 mm (2.8 inches) of rain normally falls in Thornbury during August with rain falling on 14 days of the month.

Back to months

Thornbury weather in September

The average maximum daytime temperature in Thornbury in September is a comfortable 18°C (64°F), while the average minimum night-time temperature is a cool 9°C (48°F). You can expect on average 5 hours of sunshine a day in Thornbury during September.

• 18
  18°C max day temperature
• 5
  5 hours of sunshine per day
• 14
  14 days with some rainfall
• 9
  9°C min night temperature
• 81
  81 mm of monthly rainfall

On average 81 mm (3.2 inches) of rain normally falls in Thornbury during September with rain falling on 14 days of the month.

Back to months

Thornbury weather in October

The average maximum daytime temperature in Thornbury in October 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 3 hours of sunshine a day in Thornbury during October.

• 14
  14°C max day temperature
• 3
  3 hours of sunshine per day
• 17
  17 days with some rainfall
• 7
  7°C min night temperature
• 92
  92 mm of monthly rainfall

On average 92 mm (3.6 inches) of rain normally falls in Thornbury during October with rain falling on 17 days of the month.

Back to months

Thornbury weather in November

The average maximum daytime temperature in Thornbury in November is a cool 10°C (50°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 Thornbury during November.

• 10
  10°C max day temperature
• 2
  2 hours of sunshine per day
• 18
  18 days with some rainfall
• 4
  4°C min night temperature
• 91
  91 mm of monthly rainfall

On average 91 mm (3.6 inches) of rain normally falls in Thornbury during November with rain falling on 18 days of the month.

Back to months

Thornbury weather in December

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

• 7
  7°C max day temperature
• 2
  2 hours of sunshine per day
• 18
  18 days with some rainfall
• 2
  2°C min night temperature
• 106
  106 mm of monthly rainfall

On average 106 mm (4.2 inches) of rain normally falls in Thornbury during December with rain falling on 18 days of the month.

Back to months