Anglesey Weather by Month — Temperature & Rainfall Guide

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

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

In January the weather in Anglesey is generally poor. January is a winter month. The average maximum daytime temperatures are low and range from 7°C (45°F) in Sowerby Bridge to 10°C (50°F) in Holyhead.

Find more detailed climate information for Anglesey in January here.

In February the weather in Anglesey is generally poor. February is a winter month. The average maximum daytime temperatures are low and range from 8°C (46°F) in Sowerby Bridge to 10°C (50°F) in Valley. On average, this month is the coldest month of the year in Anglesey.

Find more detailed climate information for Anglesey in February here.

In March the weather in Anglesey ranges from poor in Moelfre to unpleasant in Holyhead. March is a winter month. In Holyhead you can expect cold maximum average daytime temperatures around 11°C (52°F) and nighttime temperatures around 6°C (43°F).

Find more detailed climate information for Anglesey in March here.

In April the weather in Anglesey is generally unpleasant. The temperatures range from low in Brynkir with 12°C (54°F) to moderate in Cotswolds with 14°C (57°F).

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In May the weather in Anglesey is generally tolerable. The average maximum daytime temperatures are moderate and range from 14°C (57°F) in Amlwch to 17°C (63°F) in Cotswolds.

Find more detailed climate information for Anglesey in May here.

In June the weather in Anglesey ranges from tolerable in Holyhead to pleasant in Beaumaris. The temperatures range from moderate in Cemaes Bay with 16°C (61°F) to pleasant in Cotswolds with 20°C (68°F).

Find more detailed climate information for Anglesey in June here.

In July the weather in Anglesey ranges from pleasant in Holyhead to perfect in Beaumaris. July is a summer month. The temperatures range from pleasant in Brynkir with 18°C (64°F) to high in Cotswolds with 22°C (72°F).

Find more detailed climate information for Anglesey in July here.

In August the weather in Anglesey ranges from tolerable in Dwyran to perfect in Beaumaris. August is a summer month. The temperatures range from pleasant in Brynkir with 18°C (64°F) to high in Cotswolds with 22°C (72°F). On average, this month is the warmest month of the year in Anglesey.

Find more detailed climate information for Anglesey in August here.

In September the weather in Anglesey ranges from tolerable in Dwyran to pleasant in Holyhead. September is a summer month. The temperatures range from moderate in Brynkir with 17°C (63°F) to pleasant in Cotswolds with 19°C (66°F).

Find more detailed climate information for Anglesey in September here.

In October the weather in Anglesey is generally unpleasant. In Holyhead you can expect mild maximum average daytime temperatures around 15°C (59°F) and nighttime temperatures around 11°C (52°F).

Find more detailed climate information for Anglesey in October here.

In November the weather in Anglesey is generally poor. The temperatures range from low in Sowerby Bridge with 10°C (50°F) to moderate in Holyhead with 13°C (55°F).

Find more detailed climate information for Anglesey in November here.

In December the weather in Anglesey is generally poor. The average maximum daytime temperatures are low and range from 7°C (45°F) in Sowerby Bridge to 11°C (52°F) in Holyhead.

Find more detailed climate information for Anglesey in December here.