Climate and monthly weather forecastPortesham, United Kingdom
Climate and monthly weather forecast
Weather in January
January, like December, is another chilly winter month in Portesham, United Kingdom, with temperature in the range of an average low of 6.3°C (43.3°F) and an average high of 8.6°C (47.5°F). January's presence marks an average high-temperature of a still chilly 8.6°C (47.5°F), subtly varied from December's 9.9°C (49.8°F). Weather in January »Weather in February
The last month of the winter, February, is also a frosty month in Portesham, United Kingdom, with an average temperature fluctuating between 5.8°C (42.4°F) and 8.3°C (46.9°F). With its high average temperature of 8.3°C (46.9°F) and a low of 5.8°C (42.4°F), February is regarded as the coldest month. Weather in February »Weather in March
March, the first month of the spring in Portesham, is still a chilly month, with an average temperature varying between 9.3°C (48.7°F) and 6.4°C (43.5°F). As Portesham welcomes March, the average high-temperature records at a still chilly 9.3°C (48.7°F), marking an insignificant deviation from the prior month. Weather in March »Weather in April
April is a fresh spring month in Portesham, United Kingdom, with temperature in the range of an average low of 7.8°C (46°F) and an average high of 11.3°C (52.3°F). The shift into April reveals an average high-temperature of a cool 11.3°C (52.3°F), closely mirroring March's climate. Weather in April »Weather in May
The last month of the spring, May, is a mild month in Portesham, United Kingdom, with an average temperature ranging between max 13.3°C (55.9°F) and min 10.1°C (50.2°F). As April turns into May, the average high-temperatures rest at a refreshing 13.3°C (55.9°F), showing a minor variation from the prior month. Weather in May »Weather in June
The first month of the summer, June, is an enjoyable month in Portesham, United Kingdom, with an average temperature fluctuating between 12.6°C (54.7°F) and 16°C (60.8°F). In June, Portesham experiences a barely noticeable shift in meteorological conditions, with average high-temperatures moving from 13.3°C (55.9°F) in May to a still refreshing 16°C (60.8°F). Weather in June »Weather in July
July, like June, in Portesham, United Kingdom, is another enjoyable summer month, with temperature in the range of an average high of 17.8°C (64°F) and an average low of 14.8°C (58.6°F). The transition into July marks the average high-temperature at a still enjoyable 17.8°C (64°F), differing minimally from June's 16°C (60.8°F). Weather in July »Weather in August
The last month of the summer, August, is another refreshing month in Portesham, United Kingdom, with an average temperature fluctuating between 18.2°C (64.8°F) and 15.3°C (59.5°F). The warmest period is August, when temperatures fluctuate between an average high of 18.2°C (64.8°F) and a low of 15.3°C (59.5°F). Weather in August »Weather in September
September, the first month of the autumn in Portesham, is still a comfortable month, with temperature in the range of an average low of 14°C (57.2°F) and an average high of 16.8°C (62.2°F). September brings an average high-temperature of a still comfortable 16.8°C (62.2°F), showing a slight difference from August's 18.2°C (64.8°F). Weather in September »Weather in October
October, like September, is a moderate autumn month in Portesham, United Kingdom, with an average temperature ranging between min 12.3°C (54.1°F) and max 15°C (59°F). October's climate shows a minor adjustment in average high-temperatures to a moderate 15°C (59°F) from September's 16.8°C (62.2°F). Weather in October »Weather in November
November, the last month of the autumn in Portesham, is also a fresh month, with an average temperature fluctuating between 9.5°C (49.1°F) and 11.9°C (53.4°F). Portesham's progression into November involves a minor drop in the average high-temperature, slightly receding from a refreshing 15°C (59°F) in October to a fresh 11.9°C (53.4°F). Weather in November »Weather in December
The first month of the winter, December, is still a chilly month in Portesham, United Kingdom, with an average temperature varying between 9.9°C (49.8°F) and 7.6°C (45.7°F). Portesham records an average high-temperature of a frosty 9.9°C (49.8°F) as December arrives, nearly mirroring the previous month's climate. Weather in December »Updated: Feb 7, 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
In Portesham, during the entire year, the rain falls for 167.3 days and collects up to 471mm (18.54") of precipitation.
January, February and November are months with snowfall in Portesham.
Throughout the year, there are 2.7 snowfall days, and 4mm (0.16") of snow is accumulated.
The months with the least sunshine in Portesham are January, February and November, with an average of 4.1h of sunshine.
The months with the lowest UV index are January and February, with an average maximum UV index of 2.
In Portesham, the lowest temperatures are generally noted in February, averaging a high of 8.3°C (46.9°F) and a low of 5.8°C (42.4°F).
The months with the lowest humidity in Portesham, United Kingdom, are February through April, September through December, with an average relative humidity of 81%.
February is the month with the most snowfall in Portesham. Snow falls for 1.2 days and accumulates 2mm (0.08") of snow.
March through October and December are months without snowfall in Portesham, United Kingdom.
May is the month with the least rainfall. Rain falls for 12.7 days and accumulates 27mm (1.06") of precipitation.
June and July, with an average relative humidity of 83%, are most humid months in Portesham.
June has the longest days of the year in Portesham, with an average of 16h and 24min of daylight.
July has the most sunshine of the year, with an average of 9.4h of sunshine.
July and August, with an average maximum UV index of 5, are months with the highest UV index.
The warmest time of the year is August, with temperatures averaging a high of 18.2°C (64.8°F) and a low of 15.3°C (59.5°F).
On Sunday, 27. October 2024, at 2:00 am, Daylight Saving Time ends in Portesham, 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.
November is the month with the most rainfall in Portesham, United Kingdom. Rain falls for 17 days and accumulates 58mm (2.28") of precipitation.
With an average of 8h and 6min of daylight, December has the shortest days of the year in Portesham, United Kingdom.
Average temperature
Portesham, United Kingdom
The warmest month (with the highest average high temperature) is August (18.2°C).
The month with the lowest average high temperature is February (8.3°C).
The month with the highest average low temperature is August (15.3°C).
The coldest month (with the lowest average low temperature) is February (5.8°C).
Average pressure
Portesham, United Kingdom
- Average pressure in January:
1015mbar - Average pressure in February:
1014.3mbar - Average pressure in March:
1015.7mbar - Average pressure in April:
1015.5mbar - Average pressure in May:
1017mbar - Average pressure in June:
1016.4mbar
- Average pressure in July:
1015.9mbar - Average pressure in August:
1015.5mbar - Average pressure in September:
1017.3mbar - Average pressure in October:
1015.2mbar - Average pressure in November:
1010.6mbar - Average pressure in December:
1015.1mbar
The month with the highest atmospheric pressure is September (1017.3mbar).
The month with the lowest atmospheric pressure is November (1010.6mbar).
Average wind speed
Portesham, United Kingdom
- Average wind speed in January:
28.5km/h - Average wind speed in February:
28.7km/h - Average wind speed in March:
24.9km/h - Average wind speed in April:
20.7km/h - Average wind speed in May:
20km/h - Average wind speed in June:
19.7km/h
- Average wind speed in July:
19.5km/h - Average wind speed in August:
21.1km/h - Average wind speed in September:
22.8km/h - Average wind speed in October:
25.9km/h - Average wind speed in November:
29.5km/h - Average wind speed in December:
30.1km/h
The windiest month (with the highest average wind speed) is December (30.1km/h).
The calmest month (with the lowest average wind speed) is July (19.5km/h).
Average humidity
Portesham, United Kingdom
The months with the highest relative humidity are June and July (83%).
The months with the lowest relative humidity are February, March, April, September, October, November and December (81%).
Average rainfall
Portesham, United Kingdom
The wettest month (with the highest rainfall) is November (58mm).
The driest month (with the least rainfall) is May (27mm).
Average rainfall days
Portesham, United Kingdom
- Average rainfall days in January:
16.3 days - Average rainfall days in February:
13.7 days - Average rainfall days in March:
13.5 days - Average rainfall days in April:
12.6 days - Average rainfall days in May:
12.7 days - Average rainfall days in June:
13.3 days
- Average rainfall days in July:
12.8 days - Average rainfall days in August:
13.9 days - Average rainfall days in September:
11.1 days - Average rainfall days in October:
15.4 days - Average rainfall days in November:
17 days - Average rainfall days in December:
15 days
The month with the highest number of rainy days is November (17 days).
The month with the least rainy days is September (11.1 days).
Average snowfall
Portesham, United Kingdom
The month with the highest snowfall is February (2mm).
The months with the least snowfall are March, April, May, June, July, August, September, October and December (0mm).
Average snowfall days
Portesham, United Kingdom
- Average snowfall days in January:
0.4 days - Average snowfall days in February:
1.2 days - Average snowfall days in March:
0.4 days - Average snowfall days in April:
0.2 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:
0.2 days - Average snowfall days in December:
0.3 days
The month with the highest number of snowfall days is February (1.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Portesham, United Kingdom
- Average daylight in January:
8h and 36min - Average daylight in February:
10h and 6min - Average daylight in March:
11h and 54min - Average daylight in April:
13h and 48min - Average daylight in May:
15h and 30min - Average daylight in June:
16h and 24min
- Average daylight in July:
16h and 0min - Average daylight in August:
14h and 30min - Average daylight in September:
12h and 36min - Average daylight in October:
10h and 42min - Average daylight in November:
9h and 0min - Average daylight in December:
8h and 6min
The month with the longest days is June (Average daylight: 16h and 24min).
The month with the shortest days is December (Average daylight: 8h and 6min).
- Average sunshine in January:
4h and 6min - Average sunshine in February:
4h and 6min - Average sunshine in March:
6h and 12min - Average sunshine in April:
8h and 36min - Average sunshine in May:
8h and 42min - Average sunshine in June:
8h and 48min
- Average sunshine in July:
9h and 24min - Average sunshine in August:
8h and 48min - Average sunshine in September:
8h and 6min - Average sunshine in October:
4h and 48min - Average sunshine in November:
4h and 6min - Average sunshine in December:
4h and 12min
The month with the most sunshine is July (Average sunshine: 9h and 24min).
The months with the least sunshine are January, February and November (Average sunshine: 4h and 6min).
Average sunshine days
Portesham, United Kingdom
- Average sunshine days in January:
11.3 days - Average sunshine days in February:
11.2 days - Average sunshine days in March:
14.1 days - Average sunshine days in April:
15.5 days - Average sunshine days in May:
15.5 days - Average sunshine days in June:
13.8 days
- Average sunshine days in July:
15.2 days - Average sunshine days in August:
13.8 days - Average sunshine days in September:
15.6 days - Average sunshine days in October:
13.5 days - Average sunshine days in November:
10.1 days - Average sunshine days in December:
11.8 days
The month with the most sunshine days is September (15.6 days).
The month with the least sunshine days is November (10.1 days).
Average UV index
Portesham, United Kingdom
The months with the highest UV index are July and August (UV index 5).
The months with the lowest UV index are January and February (UV index 2).
Average cloud cover
Portesham, United Kingdom
The month with the most cloud cover is December (Cloud cover 59).
The month with the least cloud cover is July (Cloud cover 40).
Average visibility
Portesham, United Kingdom
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
