Wales Weather by Month — Temperature & Rainfall Guide

Wales is a region in the United Kingdom. Many people wonder what the weather conditions are in Wales over the year. What is the best time to visit Wales?

This page shows the average weather conditions by month in Wales over the year in: January, February, March, April, May, June, July, August, September, October, November, December.

In January the weather in Wales is generally poor. January is a winter month. In Cardiff you can expect cold maximum average daytime temperatures around 9°C (48°F) and nighttime temperatures around 4°C (39°F). On average, this month is the coldest month of the year in Wales.

Find more detailed climate information for Wales in January here.

In February the weather in Wales is generally poor. February is a winter month. In Cardiff you can expect cold maximum average daytime temperatures around 9°C (48°F) and nighttime temperatures around 4°C (39°F). On average, this month is the coldest month of the year in Wales.

Find more detailed climate information for Wales in February here.

In March the weather in Wales is generally unpleasant. In Cardiff you can expect cold maximum average daytime temperatures around 11°C (52°F) and nighttime temperatures around 5°C (41°F).

Find more detailed climate information for Wales in March here.

In April the weather in Wales is generally unpleasant. In Cardiff you can expect mild maximum average daytime temperatures around 13°C (55°F) and nighttime temperatures around 6°C (43°F).

Find more detailed climate information for Wales in April here.

In May the weather in Wales is generally tolerable. In Cardiff you can expect mild maximum average daytime temperatures around 16°C (61°F) and nighttime temperatures around 9°C (48°F).

Find more detailed climate information for Wales in May here.

In June the weather in Wales is generally pleasant. In Cardiff you can expect pleasant maximum average daytime temperatures around 18°C (64°F) and nighttime temperatures around 12°C (54°F).

Find more detailed climate information for Wales in June here.

In July the weather in Wales is generally perfect. July is a summer month. In Cardiff you can expect pleasant maximum average daytime temperatures around 20°C (68°F) and nighttime temperatures around 14°C (57°F).

Find more detailed climate information for Wales in July here.

In August the weather in Wales is generally perfect. August is a summer month. In Cardiff you can expect pleasant maximum average daytime temperatures around 20°C (68°F) and nighttime temperatures around 14°C (57°F). On average, this month is the warmest month of the year in Wales.

Find more detailed climate information for Wales in August here.

In September the weather in Wales is generally pleasant. September is a summer month. In Cardiff you can expect pleasant maximum average daytime temperatures around 18°C (64°F) and nighttime temperatures around 12°C (54°F).

Find more detailed climate information for Wales in September here.

In October the weather in Wales is generally unpleasant. In Cardiff you can expect mild maximum average daytime temperatures around 15°C (59°F) and nighttime temperatures around 10°C (50°F).

Find more detailed climate information for Wales in October here.

In November the weather in Wales is generally poor. In Cardiff you can expect mild maximum average daytime temperatures around 12°C (54°F) and nighttime temperatures around 7°C (45°F).

Find more detailed climate information for Wales in November here.

In December the weather in Wales is generally poor. December is a winter month. In Cardiff you can expect cold maximum average daytime temperatures around 10°C (50°F) and nighttime temperatures around 5°C (41°F).

Find more detailed climate information for Wales in December here.