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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Climate and monthly weather forecast
Weather in January
January, the same as December, in Portmellon, United Kingdom, is another chilly winter month, with an average temperature varying between 6.9°C (44.4°F) and 9.3°C (48.7°F). With the advent of January, Portmellon's high-temperatures adjust to a frosty 9.3°C (48.7°F), closely aligning with the preceding month. Weather in January »
Weather in February
The last month of the winter, February, is another chilly month in Portmellon, United Kingdom, with an average temperature fluctuating between 6.7°C (44.1°F) and 8.8°C (47.8°F). The month of February sees the lowest average temperatures, reaching 8.8°C (47.8°F) at the peak and 6.7°C (44.1°F) at the low. Weather in February »
Weather in March
March, the first month of the spring in Portmellon, is a cool month, with an average temperature varying between 10°C (50°F) and 6.9°C (44.4°F). March observes an average high-temperature of a fresh 10°C (50°F), marking an insignificant difference from February's 8.8°C (47.8°F). Weather in March »
Weather in April
April, like March, in Portmellon, United Kingdom, is a cool spring month, with an average temperature varying between 8.1°C (46.6°F) and 11.3°C (52.3°F). As March turns into April, the average high-temperatures rest at a still fresh 11.3°C (52.3°F), showing a minor variation from the prior month. Weather in April »
Weather in May
The last month of the spring, May, is a mild month in Portmellon, United Kingdom, with an average temperature ranging between min 10.2°C (50.4°F) and max 13.4°C (56.1°F). May's onset brings an average high-temperature of a moderate 13.4°C (56.1°F), showing a minute difference from April's 11.3°C (52.3°F). Weather in May »
Weather in June
The first month of the summer, June, is also a moderate month in Portmellon, United Kingdom, with an average temperature ranging between max 15.8°C (60.4°F) and min 12.6°C (54.7°F). Portmellon's average high-temperature marks a still mild 15.8°C (60.4°F) with the advent of June, closely mirroring that of the preceding month. Weather in June »
Weather in July
July is an enjoyable summer month in Portmellon, United Kingdom, with an average temperature fluctuating between 17.7°C (63.9°F) and 14.6°C (58.3°F). With the arrival of July, Portmellon's average high-temperature registers at a comfortable 17.7°C (63.9°F), indicating a subtle variation from the previous month. Weather in July »
Weather in August
August, the last month of the summer in Portmellon, is another comfortable month, with temperature in the range of an average high of 17.8°C (64°F) and an average low of 14.9°C (58.8°F). In Portmellon, the month of August is known for its highest average temperatures, reaching a high of 17.8°C (64°F) and a low of 14.9°C (58.8°F). Weather in August »
Weather in September
September, the first month of the autumn in Portmellon, is still a comfortable month, with an average temperature varying between 13.9°C (57°F) and 16.5°C (61.7°F). At the onset of September, Portmellon records an average high-temperature of a still enjoyable 16.5°C (61.7°F), showing little deviation from the preceding month. Weather in September »
Weather in October
October, the same as September, in Portmellon, United Kingdom, is a moderate autumn month, with an average temperature varying between 12.3°C (54.1°F) and 14.6°C (58.3°F). With the onset of October, the average high-temperature registers at a still refreshing 14.6°C (58.3°F), subtly different from September's 16.5°C (61.7°F). Weather in October »
Weather in November
The last month of the autumn, November, is also a fresh month in Portmellon, United Kingdom, with temperature in the range of an average high of 11.8°C (53.2°F) and an average low of 10.1°C (50.2°F). The arrival of November brings an average high-temperature of a cool 11.8°C (53.2°F), subtly diverging from October's 14.6°C (58.3°F). Weather in November »
Weather in December
December, the first month of the winter in Portmellon, is still a cool month, with an average temperature fluctuating between 10.5°C (50.9°F) and 8.3°C (46.9°F). Portmellon observes an average high-temperature of a still fresh 10.5°C (50.9°F) in December, barely different from 11.8°C (53.2°F) in November. 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
How much does it rain in Portmellon?
Throughout the year, in Portmellon, there are 204.6 rainfall days, and 648mm (25.51") of precipitation is accumulated.
When does it snow in Portmellon?
January and February are months with snowfall in Portmellon, United Kingdom.
How many days does it snow in Portmellon?
Throughout the year, in Portmellon, there are 1.5 snowfall days, and 7mm (0.28") of snow is accumulated.
What is the month with the least sunshine in Portmellon?
With an average of 3.9h of sunshine, January has the least sunshine of the year in Portmellon.
When is the lowest UV index in Portmellon?
With an average maximum UV index of 2, January is the month with the lowest UV index in Portmellon, United Kingdom.
What time of the year is the coldest in Portmellon?
Portmellon experiences its average lowest temperatures in February, reaching a peak of 8.8°C (47.8°F) and a minimum of 6.7°C (44.1°F).
What is the least humid month in Portmellon?
February, November and December, with an average relative humidity of 80%, are the least humid months in Portmellon.
When does it snow the most in Portmellon?
The month with the most snowfall is February, when snow falls for 0.7 days and typically aggregates up to 5mm (0.2") of snow.
When it does not snow in Portmellon?
In Portmellon, snow does not fall in March through December.
What is the driest month in Portmellon?
The month with the least rainfall is May, when the rain falls for 13.3 days and typically collects 30mm (1.18") of precipitation.
What is the most humid month in Portmellon?
The most humid month is June, with an average relative humidity of 85%.
When are the longest days in Portmellon?
With an average of 16h and 18min of daylight, June has the longest days of the year.
What month has the most sunshine in Portmellon?
July has the most sunshine of the year, with an average of 8.4h of sunshine.
What is the warmest month in Portmellon?
The temperatures in Portmellon, United Kingdom, reach their highest averages in August, with highs of 17.8°C (64°F) and lows of 14.9°C (58.8°F).
When is the highest UV index in Portmellon?
August is the month with the highest UV index, with an average maximum UV index of 5.
When is Daylight Saving Time (DST) in Portmellon?
On Sunday, 27. October 2024, at 2:00 am, Daylight Saving Time ends, 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.
What is the wettest month in Portmellon?
November is the month with the most rainfall. Rain falls for 21.2 days and accumulates 90mm (3.54") of precipitation.
What is the month with the shortest days in Portmellon?
The month with the shortest days in Portmellon is December, with an average of 8h and 6min of daylight.
Average temperature
Portmellon, United Kingdom
The warmest month (with the highest average high temperature) is August (17.8°C).
The month with the lowest average high temperature is February (8.8°C).
The month with the highest average low temperature is August (14.9°C).
The coldest month (with the lowest average low temperature) is February (6.7°C).
Average pressure
Portmellon, United Kingdom
- Average pressure in January:
1014.7mbar - Average pressure in February:
1014.1mbar - Average pressure in March:
1015.7mbar - Average pressure in April:
1015.4mbar - Average pressure in May:
1017.3mbar - Average pressure in June:
1016.6mbar
- Average pressure in July:
1016.2mbar - Average pressure in August:
1015.7mbar - Average pressure in September:
1017.4mbar - Average pressure in October:
1014.7mbar - Average pressure in November:
1010.4mbar - Average pressure in December:
1015mbar
The month with the highest atmospheric pressure is September (1017.4mbar).
The month with the lowest atmospheric pressure is November (1010.4mbar).
Average wind speed
Portmellon, United Kingdom
- Average wind speed in January:
29.3km/h - Average wind speed in February:
29.3km/h - Average wind speed in March:
25.5km/h - Average wind speed in April:
21.5km/h - Average wind speed in May:
20km/h - Average wind speed in June:
19.7km/h
- Average wind speed in July:
19.2km/h - Average wind speed in August:
20.7km/h - Average wind speed in September:
22.4km/h - Average wind speed in October:
24.3km/h - Average wind speed in November:
29km/h - Average wind speed in December:
30.4km/h
The windiest month (with the highest average wind speed) is December (30.4km/h).
The calmest month (with the lowest average wind speed) is July (19.2km/h).
Average humidity
Portmellon, United Kingdom
The month with the highest relative humidity is June (85%).
The months with the lowest relative humidity are February, November and December (80%).
Average rainfall
Portmellon, United Kingdom
The wettest month (with the highest rainfall) is November (90mm).
The driest month (with the least rainfall) is May (30mm).
Average rainfall days
Portmellon, United Kingdom
- Average rainfall days in January:
20.9 days - Average rainfall days in February:
16.2 days - Average rainfall days in March:
15.8 days - Average rainfall days in April:
14.3 days - Average rainfall days in May:
13.3 days - Average rainfall days in June:
14.3 days
- Average rainfall days in July:
16.4 days - Average rainfall days in August:
17.8 days - Average rainfall days in September:
14.9 days - Average rainfall days in October:
18.4 days - Average rainfall days in November:
21.2 days - Average rainfall days in December:
21.1 days
The month with the highest number of rainy days is November (21.2 days).
The month with the least rainy days is May (13.3 days).
Average snowfall
Portmellon, United Kingdom
The month with the highest snowfall is February (5mm).
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days
Portmellon, United Kingdom
- Average snowfall days in January:
0.3 days - Average snowfall days in February:
0.7 days - Average snowfall days in March:
0.2 days - Average snowfall days in April:
0 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 days - Average snowfall days in December:
0.3 days
The month with the highest number of snowfall days is February (0.7 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight / Average sunshine
Portmellon, United Kingdom
- Average daylight in January:
8h and 4min - Average daylight in February:
10h and 1min - Average daylight in March:
11h and 5min - Average daylight in April:
13h and 5min - Average daylight in May:
15h and 3min - Average daylight in June:
16h and 2min
- Average daylight in July:
15h and 5min - Average daylight in August:
14h and 2min - Average daylight in September:
12h and 4min - Average daylight in October:
10h and 4min - Average daylight in November:
9h and 0min - Average daylight in December:
8h and 1min
The month with the longest days is June (Average daylight: 16h and 18min).
The month with the shortest days is December (Average daylight: 8h and 6min).
- Average sunshine in January:
3h and 5min - Average sunshine in February:
4h and 2min - Average sunshine in March:
6h and 1min - Average sunshine in April:
8h and 2min - Average sunshine in May:
8h and 2min - Average sunshine in June:
8h and 1min
- Average sunshine in July:
8h and 2min - Average sunshine in August:
7h and 5min - Average sunshine in September:
7h and 4min - Average sunshine in October:
4h and 5min - Average sunshine in November:
4h and 0min - Average sunshine in December:
4h and 0min
The month with the most sunshine is July (Average sunshine: 8h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days
Portmellon, United Kingdom
- Average sunshine days in January:
7.4 days - Average sunshine days in February:
7.9 days - Average sunshine days in March:
12.3 days - Average sunshine days in April:
12 days - Average sunshine days in May:
14.1 days - Average sunshine days in June:
13 days
- Average sunshine days in July:
11.8 days - Average sunshine days in August:
9.7 days - Average sunshine days in September:
10.9 days - Average sunshine days in October:
8.8 days - Average sunshine days in November:
5.3 days - Average sunshine days in December:
6.1 days
The month with the most sunshine days is May (14.1 days).
The month with the least sunshine days is November (5.3 days).
Average UV index
Portmellon, United Kingdom
The month with the highest UV index is August (UV index 5).
The month with the lowest UV index is January (UV index 2).
Average cloud cover
Portmellon, United Kingdom
The month with the most cloud cover is December (Cloud cover 62).
The month with the least cloud cover is April (Cloud cover 43).
Average visibility
Portmellon, United Kingdom
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is January (9km).
