Caernarfon Weather in August

In Caernarfon, August brings pleasant daytime temperatures around 19°C (66°F), with nights cooling to 13°C (55°F). Expect quite a bit of rainfall this month.

Rainfall in Caernarfon in August

Typically around 16 days of rainfall are expected, averaging 106 mm (4.2 in) for the month. Wet weather is a regular and significant part of this month. Frequent days of rain combined with high totals means proper waterproofs are worth packing.

Temperature in Caernarfon in August

In August, Caernarfon sees pleasant temperatures, with highs of 19°C (66°F). Nights drop to around 13°C (55°F). August is a notable month of the summer season. This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. At 13°C (55°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping. On average, it sees the highest temps of the year.

Sunshine in Caernarfon in August

The area enjoys a balanced 145 hours of sunlight, ensuring it's neither too overcast nor too sunny.

If your ideal day consists of dry skies and pleasant temperatures, July typically offers the best circumstances for Caernarfon.