Climate and monthly weather forecastPortishead, United Kingdom
Climate and monthly weather forecast
Weather in January
January, like December, is a frosty winter month in Portishead, United Kingdom, with an average temperature fluctuating between 2.8°C (37°F) and 7.2°C (45°F). January is Portishead's coldest month, registering average high temperatures of 7.2°C (45°F) and lows of 2.8°C (37°F). Weather in January »Weather in February
February, the last month of the winter in Portishead, is another chilly month, with an average temperature fluctuating between 7.6°C (45.7°F) and 2.9°C (37.2°F). Portishead's February reports an average high-temperature of a still chilly 7.6°C (45.7°F), exhibiting a minor difference from January. Weather in February »Weather in March
March, the first month of the spring in Portishead, is still a chilly month, with an average temperature ranging between min 3.3°C (37.9°F) and max 9.8°C (49.6°F). The average high-temperature during March is a still chilly 9.8°C (49.6°F), almost matching the conditions of the preceding month. Weather in March »Weather in April
April in Portishead, United Kingdom, is a cool spring month, with an average temperature ranging between min 5°C (41°F) and max 12.7°C (54.9°F). Portishead indicates an average high-temperature of a cool 12.7°C (54.9°F) in April, showing minor variation from March's 9.8°C (49.6°F). Weather in April »Weather in May
May, the last month of the spring in Portishead, is a refreshing month, with an average temperature fluctuating between 7.5°C (45.5°F) and 15.3°C (59.5°F). The shift into May finds Portishead, United Kingdom, at an average high-temperature of a refreshing 15.3°C (59.5°F), closely comparable to April's conditions. Weather in May »Weather in June
June, the first month of the summer in Portishead, is an enjoyable month, with temperature in the range of an average low of 10.3°C (50.5°F) and an average high of 17.8°C (64°F). June's climate shows a minor adjustment in average high-temperatures to a still refreshing 17.8°C (64°F) from May's 15.3°C (59.5°F). Weather in June »Weather in July
July, like June, in Portishead, United Kingdom, is another enjoyable summer month, with temperature in the range of an average high of 19.7°C (67.5°F) and an average low of 12.6°C (54.7°F). In Portishead, July records the highest average temperatures, peaking at 19.7°C (67.5°F) and reaching a low of 12.6°C (54.7°F). Weather in July »Weather in August
August, the last month of the summer in Portishead, is also an enjoyable month, with temperature in the range of an average high of 19.4°C (66.9°F) and an average low of 12.7°C (54.9°F). Portishead's August reports an average high-temperature of a still comfortable 19.4°C (66.9°F), exhibiting a minor difference from July. Weather in August »Weather in September
September, the first month of the autumn in Portishead, is still a comfortable month, with an average temperature fluctuating between 10.5°C (50.9°F) and 17.6°C (63.7°F). As Portishead transitions from August to September, the average high-temperatures adjust to a still refreshing 17.6°C (63.7°F), nearly the same as the previous 19.4°C (66.9°F). Weather in September »Weather in October
October, like September, is another mild autumn month in Portishead, United Kingdom, with an average temperature ranging between min 9°C (48.2°F) and max 14.3°C (57.7°F). Portishead's weather in October involves a mild decrease in the average high-temperature, moving down slightly from September's comfortable 17.6°C (63.7°F) to a mild 14.3°C (57.7°F). Weather in October »Weather in November
November, the last month of the autumn in Portishead, is another cool month, with an average temperature ranging between max 10.1°C (50.2°F) and min 5.9°C (42.6°F). The start of November comes with a small reduction in the average high-temperature, subtly receding from a mild 14.3°C (57.7°F) in October to a fresh 10.1°C (50.2°F). Weather in November »Weather in December
The first month of the winter, December, is still a chilly month in Portishead, United Kingdom, with an average temperature fluctuating between 8.2°C (46.8°F) and 4.4°C (39.9°F). The arrival of December marks a slight shift to an average high-temperature of a chilly 8.2°C (46.8°F) from November's 10.1°C (50.2°F). Weather in December »Updated: Feb 8, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Temperature records in Portishead, United Kingdom, mark January as the coldest month, with highs averaging 7.2°C (45°F) and lows at 2.8°C (37°F).
Throughout the year, in Portishead, United Kingdom, there are 176.1 rainfall days, and 410mm (16.14") of precipitation is accumulated.
January through April, November and December are months with snowfall in Portishead.
Throughout the year, in Portishead, there are 7 snowfall days, and 45mm (1.77") of snow is accumulated.
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
The month with the most snowfall in Portishead is February, when snow falls for 2.3 days and typically aggregates up to 18mm (0.71") of snow.
The months with the lowest humidity in Portishead are April, May and July, with an average relative humidity of 82%.
The months with the least rainfall in Portishead are April and September Rain falls for 13.2 days and accumulates 24mm (0.94") of rain.
In Portishead, United Kingdom, snow does not fall in May through October.
The months with the highest UV index are May through September, with an average maximum UV index of 4.
With an average of 16h and 36min of daylight, June has the longest days of the year.
Portishead's July weather reaches an average high of 19.7°C (67.5°F) and an average low of 12.6°C (54.7°F), making it the warmest month.
July has the most sunshine of the year in Portishead, United Kingdom, with an average of 8.2h of sunshine.
On Sunday, 27. October 2024, at 2:00 am, Daylight Saving Time ends in Portishead, United Kingdom, and the time zone changes from BST to GMT. The next Daylight Saving Time starts on Sunday, 30. March 2025, at 1:00 am, and the time zone reverts from GMT to BST.
The months with the highest humidity are November and December, with an average relative humidity of 88%.
November has the least sunshine of the year in Portishead, United Kingdom, with an average of 3.9h of sunshine.
December is the month with the most rainfall in Portishead, United Kingdom. Rain falls for 14.3 days and accumulates 45mm (1.77") of precipitation.
The month with the shortest days in Portishead, United Kingdom, is December, with an average of 7h and 54min of daylight.
Average temperature
Portishead, United Kingdom
The warmest month (with the highest average high temperature) is July (19.7°C).
The month with the lowest average high temperature is January (7.2°C).
The month with the highest average low temperature is August (12.7°C).
The coldest month (with the lowest average low temperature) is January (2.8°C).
Average pressure
Portishead, United Kingdom
- Average pressure in January:
1014.2mbar - Average pressure in February:
1013.6mbar - Average pressure in March:
1015.4mbar - Average pressure in April:
1015.4mbar - Average pressure in May:
1016.8mbar - Average pressure in June:
1016mbar
- Average pressure in July:
1015.3mbar - Average pressure in August:
1014.8mbar - Average pressure in September:
1016.8mbar - Average pressure in October:
1014.7mbar - Average pressure in November:
1010.1mbar - Average pressure in December:
1014.2mbar
The months with the highest atmospheric pressure are May and September (1016.8mbar).
The month with the lowest atmospheric pressure is November (1010.1mbar).
Average wind speed
Portishead, United Kingdom
- Average wind speed in January:
18.6km/h - Average wind speed in February:
19.5km/h - Average wind speed in March:
17.5km/h - Average wind speed in April:
14.4km/h - Average wind speed in May:
14.2km/h - Average wind speed in June:
13.7km/h
- Average wind speed in July:
13.6km/h - Average wind speed in August:
14.2km/h - Average wind speed in September:
14.3km/h - Average wind speed in October:
16.1km/h - Average wind speed in November:
17.8km/h - Average wind speed in December:
18.9km/h
The windiest month (with the highest average wind speed) is February (19.5km/h).
The calmest month (with the lowest average wind speed) is July (13.6km/h).
Average humidity
Portishead, United Kingdom
The months with the highest relative humidity are November and December (88%).
The months with the lowest relative humidity are April, May and July (82%).
Average rainfall
Portishead, United Kingdom
The wettest month (with the highest rainfall) is December (45mm).
The driest months (with the least rainfall) are April and September (24mm).
Average rainfall days
Portishead, United Kingdom
- Average rainfall days in January:
14.1 days - Average rainfall days in February:
12.3 days - Average rainfall days in March:
13.7 days - Average rainfall days in April:
13.2 days - Average rainfall days in May:
14.5 days - Average rainfall days in June:
15.3 days
- Average rainfall days in July:
17.3 days - Average rainfall days in August:
17.5 days - Average rainfall days in September:
12.9 days - Average rainfall days in October:
14.2 days - Average rainfall days in November:
16.8 days - Average rainfall days in December:
14.3 days
The month with the highest number of rainy days is August (17.5 days).
The month with the least rainy days is February (12.3 days).
Average snowfall
Portishead, United Kingdom
The month with the highest snowfall is February (18mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days
Portishead, United Kingdom
- Average snowfall days in January:
2.4 days - Average snowfall days in February:
2.3 days - Average snowfall days in March:
0.8 days - Average snowfall days in April:
0.3 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0.4 days - Average snowfall days in December:
0.8 days
The month with the highest number of snowfall days is January (2.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Portishead, United Kingdom
- Average daylight in January:
8h and 30min - Average daylight in February:
10h and 0min - Average daylight in March:
11h and 54min - Average daylight in April:
13h and 54min - Average daylight in May:
15h and 36min - Average daylight in June:
16h and 36min
- Average daylight in July:
16h and 6min - Average daylight in August:
14h and 36min - Average daylight in September:
12h and 36min - Average daylight in October:
10h and 42min - Average daylight in November:
8h and 54min - Average daylight in December:
7h and 54min
The month with the longest days is June (Average daylight: 16h and 36min).
The month with the shortest days is December (Average daylight: 7h and 54min).
- Average sunshine in January:
4h and 6min - Average sunshine in February:
4h and 0min - Average sunshine in March:
5h and 48min - Average sunshine in April:
7h and 42min - Average sunshine in May:
7h and 54min - Average sunshine in June:
7h and 36min
- Average sunshine in July:
8h and 12min - Average sunshine in August:
7h and 30min - Average sunshine in September:
7h and 12min - Average sunshine in October:
4h and 30min - Average sunshine in November:
3h and 54min - Average sunshine in December:
4h and 6min
The month with the most sunshine is July (Average sunshine: 8h and 12min).
The month with the least sunshine is November (Average sunshine: 3h and 54min).
Average sunshine days
Portishead, United Kingdom
- Average sunshine days in January:
13.1 days - Average sunshine days in February:
12 days - Average sunshine days in March:
14.5 days - Average sunshine days in April:
13.3 days - Average sunshine days in May:
12.8 days - Average sunshine days in June:
10.8 days
- Average sunshine days in July:
9.9 days - Average sunshine days in August:
9.3 days - Average sunshine days in September:
13.4 days - Average sunshine days in October:
12.9 days - Average sunshine days in November:
10.5 days - Average sunshine days in December:
13.3 days
The month with the most sunshine days is March (14.5 days).
The month with the least sunshine days is August (9.3 days).
Average UV index
Portishead, United Kingdom
The months with the highest UV index are May, June, July, August and September (UV index 4).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover
Portishead, United Kingdom
The month with the most cloud cover is November (Cloud cover 61).
The months with the least cloud cover are April and May (Cloud cover 48).
Average visibility
Portishead, United Kingdom
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
