Carmarthen Weather in August

Carmarthen in August averages 20°C (68°F) during the day and 13°C (55°F) at night. This is part of the summer season, and quite a bit of rainfall is expected this month.

Rainfall in Carmarthen in August

You can expect rain on around 15 days based on historical patterns, with 106 mm (4.2 in) average for the month. Rain falls regularly this month and can be quite heavy when it does. Showers can be substantial, so waterproof gear is a good idea.

Temperature in Carmarthen in August

In August, Carmarthen gets pleasant temperatures, with highs of 20°C (68°F). Nights cool to around 13°C (55°F). August is in the summer season. A light jacket or extra layer can be useful, especially outside the warmest hours of the day. Nights drop to around 13°C (55°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable. On average, it has the peak temperatures of the year.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. July typically offers the best weather for Carmarthen.