Londonderry
United Kingdom
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Londonderry, United Kingdom

January, like December, is another chilly winter month in Londonderry, United Kingdom, with average temperature fluctuating between 2.2°C (36°F) and 8°C (46.4°F). January and December, with an average high-temperature of 8°C (46.4°F), are the coldest months. Weather in January »
February, the last month of the winter, in Londonderry, is another chilly month, with average temperature varying between 8.2°C (46.8°F) and 2.1°C (35.8°F). In Londonderry, the average high-temperature in February is essentially the same as in January - a still chilly 8.2°C (46.8°F). Weather in February »

March, the first month of the spring, in Londonderry, is a fresh month, with average temperature varying between 3.5°C (38.3°F) and 10.1°C (50.2°F). In March, the average high-temperature is almost the same as in February - a cool 10.1°C (50.2°F). Weather in March »

April, the same as March, is another fresh spring month in Londonderry, United Kingdom, with average temperature ranging between min 4.8°C (40.6°F) and max 12.1°C (53.8°F). In Londonderry, United Kingdom, the average high-temperature is relatively the same as in March - a still fresh 12.1°C (53.8°F). Weather in April »

The last month of the spring, May, is a mild month in Londonderry, United Kingdom, with average temperature fluctuating between 15°C (59°F) and 7°C (44.6°F). In Londonderry, United Kingdom, the average high-temperature in May is almost the same as in April - a mild 15°C (59°F). Weather in May »

June, the first month of the summer, in Londonderry, is an enjoyable month, with average temperature ranging between min 9.7°C (49.5°F) and max 17°C (62.6°F). In Londonderry, the average high-temperature is almost the same as in May - an enjoyable 17°C (62.6°F). Weather in June »

July, like June, in Londonderry, United Kingdom, is another enjoyable summer month, with average temperature ranging between max 18.9°C (66°F) and min 11.6°C (52.9°F). July is the warmest month, with an average high-temperature of 18.9°C (66°F) and an average low-temperature of 11.6°C (52.9°F). Weather in July »

The last month of the summer, August, is another comfortable month in Londonderry, United Kingdom, with average temperature varying between 11.4°C (52.5°F) and 18.5°C (65.3°F). In Londonderry, the average high-temperature in August is relatively the same as in July - a still enjoyable 18.5°C (65.3°F). Weather in August »

The first month of the autumn, September, is also an enjoyable month in Londonderry, United Kingdom, with temperature in the range of an average low of 9.8°C (49.6°F) and an average high of 16.7°C (62.1°F). In September, the average high-temperature is practically the same as in August - a still enjoyable 16.7°C (62.1°F). Weather in September »

October, like September, is a moderate autumn month in Londonderry, United Kingdom, with temperature in the range of an average high of 13.5°C (56.3°F) and an average low of 7.2°C (45°F). In Londonderry, the average high-temperature slightly decreases, from an enjoyable 16.7°C (62.1°F) in September, to a moderate 13.5°C (56.3°F). Weather in October »

November, the last month of the autumn, in Londonderry, is another cool month, with temperature in the range of an average high of 10.2°C (50.4°F) and an average low of 4.5°C (40.1°F). In Londonderry, the average high-temperature marginally drops, from a moderate 13.5°C (56.3°F) in October, to a fresh 10.2°C (50.4°F). Weather in November »

The first month of the winter, December, is also a frosty month in Londonderry, United Kingdom, with average temperature varying between 2.5°C (36.5°F) and 8°C (46.4°F). The coldest months are January and December, with an average high-temperature of 8°C (46.4°F). Weather in December »

What are the coldest months in Londonderry?

January and December, with an average high-temperature of 8°C (46.4°F), are the coldest months.

How many days does it rain in Londonderry?

In Londonderry, during the entire year, the rain falls for 170 days and collects up to 852.7mm (33.6") of precipitation.

What are the months with the lowest UV index in Londonderry?

January and December, with an average maximum UV index of 0, are months with the lowest UV index in Londonderry, United Kingdom.

What is the month with the coldest sea water in Londonderry?

With an average sea temperature of 8.7°C (47.7°F), March is the month with the coldest seawater in Londonderry. At temperatures below 10°C (50°F), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 13°C (55.4°F) is not comfortable.

What is the driest month in Londonderry?

May is the month with the least rainfall in Londonderry, United Kingdom. Rain falls for 12 days and accumulates 51.2mm (2") of precipitation.

What month has the most sunshine in Londonderry?

May has the most sunshine of the year in Londonderry, United Kingdom, with an average of 6.5h of sunshine.

When are the longest days in Londonderry?

With an average of 17.3h of daylight, June has the longest days of the year.

What are the months with the highest UV index in Londonderry?

June and July, with an average maximum UV index of 6, are months with the highest UV index in Londonderry.

What is the warmest month in Londonderry?

The warmest month is July, with an average high-temperature of 18.9°C (66°F) and an average low-temperature of 11.6°C (52.9°F).

What month is the sea warmest in Londonderry?

With an average sea temperature of 14.7°C (58.5°F), August is the month with the warmest seawater in Londonderry, United Kingdom. Swimming in 14.7°C (58.5°F) is considered dangerous. Unprotected immersion in temperatures below 10°C (50°F) causes quickly maximum intensity cold shock with hyperventilation.

What is the rainiest month in Londonderry?

October is the month with the most rainfall in Londonderry, United Kingdom. Rain falls for 16 days and accumulates 89mm (3.5") of precipitation.

What is the month with the shortest days in Londonderry?

The month with the shortest days in Londonderry is December, with an average of 7.3h of daylight.

What is the month with the least sunshine in Londonderry?

With an average of 1.2h of sunshine, December has the least sunshine of the year in Londonderry.
Average temperature - Londonderry, United Kingdom
Average rainfall - Londonderry, United Kingdom

The wettest month (with the highest rainfall) is October (89mm).
The driest month (with the lowest rainfall) is May (51.2mm).

Average rainfall days - Londonderry, United Kingdom
Average sea temperature - Londonderry, United Kingdom

The best month for swimming (with the highest average sea temperature) is August (14.7°C).
The coldest month (with the lowest average sea temperature) is March (8.7°C).

Average daylight / Average sunshine - Londonderry, United Kingdom