Cairnryan
United Kingdom
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Cairnryan, United Kingdom

In January, the average sea temperature in Cairnryan, United Kingdom, is 8.7°C (47.7°F). Note: Swimming in 8.7°C (47.7°F) is considered dangerous. Unprotected immersion in temperatures below 10°C (50°F) causes quickly maximum intensity cold shock with hyperventilation. Weather in January »
In February, the average sea temperature in Cairnryan, United Kingdom, is 7.9°C (46.2°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 February »

With an average sea temperature of 7.8°C (46°F), March is the month with the coldest seawater in Cairnryan, United Kingdom. Note: Swimming in 7.8°C (46°F) is considered life-threatening. Weather in March »

In April, the average sea temperature in Cairnryan, United Kingdom, is 8.6°C (47.5°F). Note: Swimming in 8.6°C (47.5°F) is considered dangerous. Unprotected immersion in temperatures below 10°C (50°F) causes quickly maximum intensity cold shock with hyperventilation. Weather in April »

In Cairnryan, United Kingdom, the average seawater temperature in May is 9.9°C (49.8°F). Note: Swimming in 9.9°C (49.8°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 June, the average sea temperature in Cairnryan, United Kingdom, is 11.8°C (53.2°F). Note: Swimming in 11.8°C (53.2°F) is considered dangerous. Unprotected immersion in temperatures below 10°C (50°F) causes quickly maximum intensity cold shock with hyperventilation. Weather in June »

In Cairnryan, United Kingdom, the average seawater temperature in July is 13.8°C (56.8°F). Note: Swimming in 13.8°C (56.8°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 July »

August and September, with an average sea temperature of 14.3°C (57.7°F), are months with the warmest seawater in Cairnryan, United Kingdom. Note: Swimming in 14.3°C (57.7°F) is considered life-threatening. Weather in August »

August and September, with an average sea temperature of 14.3°C (57.7°F), are months with the warmest seawater in Cairnryan, United Kingdom. Note: Swimming in 14.3°C (57.7°F) is considered life-threatening. Weather in September »

In October, the average sea temperature in Cairnryan, United Kingdom, is 13.7°C (56.7°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 Cairnryan, United Kingdom, the average seawater temperature in November is 12.4°C (54.3°F). Note: Swimming in 12.4°C (54.3°F) is considered life-threatening. Weather in November »

In December, the average sea temperature in Cairnryan, United Kingdom, is 10.7°C (51.3°F). Note: Swimming in 10.7°C (51.3°F) is considered life-threatening. Weather in December »

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

March is the month with the coldest seawater in Cairnryan, United Kingdom, with an average sea temperature of 7.8°C (46°F).

When are the longest days in Cairnryan?

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

What are the months with the warmest sea water in Cairnryan?

August and September, with an average sea temperature of 14.3°C (57.7°F), are months with the warmest seawater.

What is the month with the shortest days in Cairnryan?

December has the shortest days of the year, with an average of 7.3h of daylight.
Average sea temperature - Cairnryan, United Kingdom

Best months for swimming (with the highest average sea temperature) are August and September (14.3°C).
The coldest month (with the lowest average sea temperature) is March (7.8°C).

Average daylight - Cairnryan, United Kingdom

The month with the longest days is June (Average daylight: 17.3h).
The month with shortest days is December (Average daylight: 7.3h).