Runcorn
United Kingdom
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Runcorn, United Kingdom

In Runcorn, United Kingdom, the average seawater temperature in January is 7.7°C (45.9°F). Note: Swimming in 7.7°C (45.9°F) is considered life-threatening. Weather in January »

February and March, with an average sea temperature of 7.4°C (45.3°F), are months with the coldest seawater in Runcorn, United Kingdom. Note: Swimming in 7.4°C (45.3°F) is considered dangerous. Weather in February »

February and March, with an average sea temperature of 7.4°C (45.3°F), are months with the coldest seawater in Runcorn, United Kingdom. Note: 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. Weather in March »

In Runcorn, United Kingdom, the average seawater temperature in April is 8.9°C (48°F). Note: Swimming in 8.9°C (48°F) is considered life-threatening. Even a few minutes in 13°C (55.4°F) water is uncomfortable, and swimming below 10°C (50°F) may cause total loss of breathing control and cold shock, depending on a person's physique. Weather in April »

In May, the average sea temperature in Runcorn, United Kingdom, is 10.9°C (51.6°F). Note: Swimming in 10.9°C (51.6°F) is considered life-threatening. Even a few minutes in 13°C (55.4°F) water is uncomfortable, and swimming below 10°C (50°F) may cause total loss of breathing control and cold shock, depending on a person's physique. Weather in May »

In Runcorn, United Kingdom, the average seawater temperature in June is 13.4°C (56.1°F). Note: Swimming in 13.4°C (56.1°F) is considered life-threatening. Even a few minutes in 13°C (55.4°F) water is uncomfortable, and swimming below 10°C (50°F) may cause total loss of breathing control and cold shock, depending on a person's physique. Weather in June »

In Runcorn, United Kingdom, the average seawater temperature in July is 15.6°C (60.1°F). Note: For swimming, a surface water temperature of 15.6°C (60.1°F) is not enjoyable for the majority. Weather in July »

August is the month with the warmest seawater in Runcorn, United Kingdom, with an average sea temperature of 16.7°C (62.1°F). Note: For swimming, a surface water temperature of 16.7°C (62.1°F) is not enjoyable for the majority. Weather in August »

In Runcorn, United Kingdom, in September, the average water temperature is 16.2°C (61.2°F). Note: For swimming, a surface water temperature of 16.2°C (61.2°F) is not enjoyable for the majority. Weather in September »

In Runcorn, United Kingdom, in October, the average water temperature is 14.6°C (58.3°F). Note: 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. Weather in October »

In November, the average sea temperature in Runcorn, United Kingdom, is 12.4°C (54.3°F). Note: 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. Weather in November »

In Runcorn, United Kingdom, the average seawater temperature in December is 9.7°C (49.5°F). Note: 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. Weather in December »

What months are the sea coldest in Runcorn?

February and March, with an average sea temperature of 7.4°C (45.3°F), are months with the coldest seawater in Runcorn.

When are the longest days in Runcorn?

June has the longest days of the year in Runcorn, United Kingdom, with an average of 16.9h of daylight.

What month is the sea warmest in Runcorn?

August is the month with the warmest seawater, with an average sea temperature of 16.7°C (62.1°F).

What is the month with the shortest days in Runcorn?

December has the shortest days of the year in Runcorn, with an average of 7.6h of daylight.
Average sea temperature - Runcorn, United Kingdom

The best month for swimming (with the highest average sea temperature) is August (16.7°C).
Coldest months (with the lowest average sea temperature) are February and March (7.4°C).

Average daylight - Runcorn, United Kingdom

The month with the longest days is June (Average daylight: 16.9h).
The month with shortest days is December (Average daylight: 7.6h).