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Castlemartin Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Castlemartin.
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Climate overview of Castlemartin
Temperatures in Castlemartin, Dyfed, United Kingdom, shift moderately through the seasons. The warmest month is August at 19°C (66°F), and the coolest is February at 10°C (50°F).
With around 1145 mm (45 in) of annual rainfall, Castlemartin has a notably wet climate. The wettest month is November.
Castlemartin Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Castlemartin - and find the best time to visit.
Monthly Temperature in Castlemartin
The climate in Castlemartin experiences moderate temperature changes, with mild shifts between seasons. Average daytime temperatures reach a pleasant 19°C (66°F) in August. In February, the coolest month of the year, temperatures drop to a chilly 10°C (50°F).
At night, temperatures range from around 15°C (59°F) in August to 6°C (43°F) in February.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Castlemartin
Castlemartin has a notably wet climate with abundant precipitation, recording 1145 mm (45 in) of rainfall per year. Castlemartin experiences moderate seasonal variation in rainfall, with monthly averages ranging from 140 mm (5.5 in) in November, the wettest month, and 66 mm (2.6 in) in May, the driest month. For more details, please visit our Castlemartin Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Best Time to Visit Castlemartin
The most comfortable overall weather for exploring Castlemartin is usually found in July, August and September. Conditions are generally least comfortable in January, February, November and December.
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
Jan
wet
Feb
cold
Mar
mixed
Apr
mixed
May
good
Jun
good
Jul
very good
Aug
very good
Sep
very good
Oct
mixed
Nov
wet
Dec
wet
- Best overall: July, August and September
- Warmest weather: July, August and September
- Fewest rainy days: April, June and July
Frequently asked questions about the climate in Castlemartin
What is the best time to visit Castlemartin?
July, August and September typically offer the most optimal weather in Castlemartin. In contrast, January, February, November and December tend to have less optimal conditions.
What temperatures can I expect in Castlemartin?
Daytime highs range from 10°C (50°F) in February to 19°C (66°F) in August. Nighttime lows range from 6°C (43°F) to 15°C (59°F).
How much rain does Castlemartin get?
Annual rainfall is around 1145 mm (45 in). November is the wettest month with 140 mm (5.5 in), while May is the driest with 66 mm (2.6 in).
Castlemartin 3-Day Forecast
Castlemartin on the map
Castlemartin is highlighted - select any city to see its climate.
Popular in October
Where to go in October - average daytime high across popular destinations.
London
16°C (61°F) Bath15°C (59°F) Torquay16°C (61°F) Manchester14°C (57°F) York15°C (59°F) Blackpool
15°C (59°F) Edinburgh13°C (55°F) Glasgow14°C (57°F) Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
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