Monthly weather forecast and climate
Portrush, United Kingdom

January, like December, is a frosty winter month in Portrush, United Kingdom, with temperature in the range of an average low of 4.3°C (39.7°F) and an average high of 7.1°C (44.8°F). January is the coldest month, with an average high-temperature of 7.1°C (44.8°F) and an average low-temperature of 4.3°C (39.7°F). Weather in January »

The last month of the winter, February, is also a frosty month in Portrush, United Kingdom, with average temperature ranging between min 4°C (39.2°F) and max 7.2°C (45°F). In February, the average high-temperature is practically the same as in January - a still chilly 7.2°C (45°F). Weather in February »

March, the first month of the spring, in Portrush, is also a frosty month, with average temperature varying between 8.6°C (47.5°F) and 4.4°C (39.9°F). In March, the average high-temperature is essentially the same as in February - a still chilly 8.6°C (47.5°F). Weather in March »

April in Portrush, United Kingdom, is a fresh spring month, with average temperature varying between 10.3°C (50.5°F) and 5.7°C (42.3°F). In April, the average high-temperature is essentially the same as in March - a cool 10.3°C (50.5°F). Weather in April »

The last month of the spring, May, is another cool month in Portrush, United Kingdom, with average temperature fluctuating between 7.7°C (45.9°F) and 12.5°C (54.5°F). In Portrush, the average high-temperature in May is essentially the same as in April - a still fresh 12.5°C (54.5°F). Weather in May »

June, the first month of the summer, in Portrush, is a moderate month, with average temperature ranging between min 10°C (50°F) and max 14.9°C (58.8°F). In June, the average high-temperature is almost the same as in May - a mild 14.9°C (58.8°F). Weather in June »

July is an enjoyable summer month in Portrush, United Kingdom, with temperature in the range of an average low of 11.7°C (53.1°F) and an average high of 16°C (60.8°F). With an average high-temperature of 16°C (60.8°F) and an average low-temperature of 11.7°C (53.1°F), July is the warmest month. Weather in July »

August, the last month of the summer, in Portrush, is also a moderate month, with average temperature fluctuating between 11.8°C (53.2°F) and 15.9°C (60.6°F). In August, the average high-temperature is essentially the same as in July - a mild 15.9°C (60.6°F). Weather in August »

The first month of the autumn, September, is still a mild month in Portrush, United Kingdom, with average temperature ranging between min 10.7°C (51.3°F) and max 14.7°C (58.5°F). In Portrush, the average high-temperature in September is almost the same as in August - a still moderate 14.7°C (58.5°F). Weather in September »

October, like September, in Portrush, United Kingdom, is a cool autumn month, with average temperature varying between 9°C (48.2°F) and 12.5°C (54.5°F). In Portrush, the average high-temperature is relatively the same as in September - a fresh 12.5°C (54.5°F). Weather in October »

The last month of the autumn, November, is also a frosty month in Portrush, United Kingdom, with temperature in the range of an average low of 6.4°C (43.5°F) and an average high of 9.3°C (48.7°F). In Portrush, the average high-temperature in November slightly decreases, from a cool 12.5°C (54.5°F) in October, to a frosty 9.3°C (48.7°F). Weather in November »

December, the first month of the winter, in Portrush, is also a frosty month, with temperature in the range of an average low of 4.7°C (40.5°F) and an average high of 7.5°C (45.5°F). In Portrush, United Kingdom, the average high-temperature is essentially the same as in November - a still frosty 7.5°C (45.5°F). Weather in December »

What is the coldest month in Portrush?

January is the coldest month, with an average high-temperature of 7.1°C (44.8°F) and an average low-temperature of 4.3°C (39.7°F).

How many days does it rain in Portrush?

Throughout the year, there are 238.3 rainfall days, and 632mm (24.88") of precipitation is accumulated.

When does it snow in Portrush?

Months with snowfall are January through April, November and December.

How much does it snow in Portrush?

Throughout the year, there are 8 snowfall days, and 47mm (1.85") of snow is accumulated.

What is the month with the least sunshine in Portrush?

January has the least sunshine of the year in Portrush, United Kingdom, with an average of 3.8h of sunshine.

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

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Portrush.

When does it snow the most in Portrush?

February is the month with the most snowfall. Snow falls for 2.5 days and accumulates 16mm (0.63") of snow.

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

With an average sea temperature of 8.3°C (46.9°F), March is the month with the coldest seawater.

What is the least humid month in Portrush?

The least humid month is April, with an average relative humidity of 81%.

What is the driest month in Portrush?

The month with the least rainfall is April when the rain falls for 16.8 days and typically collects 35mm (1.38") of precipitation.

When it does not snow in Portrush?

In Portrush snow does not fall in May through October.

What is the month with the highest UV index in Portrush?

Months with the highest UV index in Portrush are May, June, August and September, with an average maximum UV index of 4.

When are the longest days in Portrush?

The month with the longest days in Portrush, United Kingdom, is June, with an average of 17.3h of daylight.

What month has the most sunshine in Portrush?

June has the most sunshine of the year in Portrush, United Kingdom, with an average of 8h of sunshine.

What is the warmest month in Portrush?

With an average high-temperature of 16°C (60.8°F) and an average low-temperature of 11.7°C (53.1°F), July is the warmest month in Portrush, United Kingdom.

What are the most humid months in Portrush?

Months with the highest humidity are July and August, with an average relative humidity of 86%.

What is the rainiest month in Portrush?

Months with the most rainfall are July and August, with an average 74mm (2.91") of precipitation.

What month is the sea warmest in Portrush?

The month with the warmest seawater is August, with an average sea temperature of 14.3°C (57.7°F).

What is the month with the shortest days in Portrush?

The month with the shortest days is December, with an average of 7.2h of daylight.
Average humidity - Portrush, United Kingdom
Average rainfall - Portrush, United Kingdom
Average rainfall days - Portrush, United Kingdom

The month with the highest number of rainy days is August (24 days).
The month with the least rainy days is April (16.8 days).

Average snowfall - Portrush, United Kingdom
Average snowfall days - Portrush, United Kingdom

The month with the highest number of snowfall days is February (2.5 days).
Months with the least snowfall days are May, June, July, August, September and October (0 days).

Average sea temperature - Portrush, United Kingdom

The best month for swimming (with the highest average sea temperature) is August (14.3°C).
The coldest month (with the lowest average sea temperature) is March (8.3°C).

Average daylight / Average sunshine - Portrush, United Kingdom
Average UV index - Portrush, United Kingdom

Months with the highest UV index are May, June, August and September (UV index 4).
Months with the lowest UV index are January, February, November and December (UV index 2).