Letterston weather
The Letterston weather guide shows monthly weather averages (including daytime and night-time temperatures, rainfall and hours of sunshine) for holidays in Letterston, Pembrokeshire, Wales in 2026/2027.
Letterston weather averages
Check the Letterston weather averages for each month of the year including maximum daytime and minimum night-time temperatures, monthly rainfall, number of days with rain and average daily hours of sunshine for Letterston, Pembrokeshire, Wales.
Letterston weather by month
Check the weather for Letterston, Pembrokeshire, Wales for a particular month by selecting from the list below. This gives the best indication of what to expect from the weather months in advance.
Letterston weather in January
The average maximum daytime temperature in Letterston in January is a cool 8°C (46°F), while the average minimum night-time temperature is a cold 3°C (37°F). You can expect on average 2 hours of sunshine a day in Letterston during January.
- 8°C max day temperature
8 - 2 hours of sunshine per day
2 - 20 days with some rainfall
20 - 3°C min night temperature
3 - 123 mm of monthly rainfall
123
On average 123 mm (4.8 inches) of rain normally falls in Letterston during January with rain falling on 20 days of the month.
Letterston weather in February
The average maximum daytime temperature in Letterston in February is a cool 8°C (46°F), while the average minimum night-time temperature is a cold 3°C (37°F). You can expect on average 3 hours of sunshine a day in Letterston during February.
- 8°C max day temperature8
- 3 hours of sunshine per day
3 - 16 days with some rainfall
16 - 3°C min night temperature3
- 86 mm of monthly rainfall
86
On average 86 mm (3.4 inches) of rain normally falls in Letterston during February with rain falling on 16 days of the month.
Letterston weather in March
The average maximum daytime temperature in Letterston in March is a cool 9°C (48°F), while the average minimum night-time temperature is a cold 4°C (39°F). You can expect on average 4 hours of sunshine a day in Letterston during March.
- 9°C max day temperature9
- 4 hours of sunshine per day
4 - 17 days with some rainfall17
- 4°C min night temperature
4 - 91 mm of monthly rainfall91
On average 91 mm (3.6 inches) of rain normally falls in Letterston during March with rain falling on 17 days of the month.
Letterston weather in April
The average maximum daytime temperature in Letterston in April is a cool 11°C (52°F), while the average minimum night-time temperature is a cold 5°C (41°F). You can expect on average 6 hours of sunshine a day in Letterston during April.
- 11°C max day temperature11
- 6 hours of sunshine per day
6 - 13 days with some rainfall
13 - 5°C min night temperature5
- 68 mm of monthly rainfall
68
On average 68 mm (2.7 inches) of rain normally falls in Letterston during April with rain falling on 13 days of the month.
Letterston weather in May
The average maximum daytime temperature in Letterston in May is a comfortable 15°C (59°F), while the average minimum night-time temperature is a cool 8°C (46°F). You can expect on average 7 hours of sunshine a day in Letterston during May.
- 15°C max day temperature
15 - 7 hours of sunshine per day
7 - 13 days with some rainfall13
- 8°C min night temperature8
- 60 mm of monthly rainfall
60
On average 60 mm (2.4 inches) of rain normally falls in Letterston during May with rain falling on 13 days of the month.
Letterston weather in June
The average maximum daytime temperature in Letterston in June is a comfortable 17°C (63°F), while the average minimum night-time temperature is a cool 10°C (50°F). You can expect on average 7 hours of sunshine a day in Letterston during June.
- 17°C max day temperature17
- 7 hours of sunshine per day7
- 13 days with some rainfall13
- 10°C min night temperature10
- 74 mm of monthly rainfall74
On average 74 mm (2.9 inches) of rain normally falls in Letterston during June with rain falling on 13 days of the month.
Letterston weather in July
The average maximum daytime temperature in Letterston in July is a comfortable 19°C (66°F), while the average minimum night-time temperature is a cool 12°C (54°F). You can expect on average 7 hours of sunshine a day in Letterston during July.
- 19°C max day temperature
19 - 7 hours of sunshine per day7
- 12 days with some rainfall
12 - 12°C min night temperature
12 - 66 mm of monthly rainfall66
On average 66 mm (2.6 inches) of rain normally falls in Letterston during July with rain falling on 12 days of the month.
Letterston weather in August
The average maximum daytime temperature in Letterston in August is a comfortable 19°C (66°F), while the average minimum night-time temperature is a cool 12°C (54°F). You can expect on average 6 hours of sunshine a day in Letterston during August.
- 19°C max day temperature19
- 6 hours of sunshine per day6
- 14 days with some rainfall14
- 12°C min night temperature12
- 97 mm of monthly rainfall97
On average 97 mm (3.8 inches) of rain normally falls in Letterston during August with rain falling on 14 days of the month.
Letterston weather in September
The average maximum daytime temperature in Letterston in September is a comfortable 17°C (63°F), while the average minimum night-time temperature is a cool 11°C (52°F). You can expect on average 5 hours of sunshine a day in Letterston during September.
- 17°C max day temperature17
- 5 hours of sunshine per day
5 - 15 days with some rainfall15
- 11°C min night temperature11
- 103 mm of monthly rainfall
103
On average 103 mm (4.1 inches) of rain normally falls in Letterston during September with rain falling on 15 days of the month.
Letterston weather in October
The average maximum daytime temperature in Letterston in October is a comfortable 14°C (57°F), while the average minimum night-time temperature is a cool 8°C (46°F). You can expect on average 3 hours of sunshine a day in Letterston during October.
- 14°C max day temperature14
- 3 hours of sunshine per day3
- 18 days with some rainfall18
- 8°C min night temperature8
- 129 mm of monthly rainfall129
On average 129 mm (5.1 inches) of rain normally falls in Letterston during October with rain falling on 18 days of the month.
Letterston weather in November
The average maximum daytime temperature in Letterston in November is a cool 10°C (50°F), while the average minimum night-time temperature is a cold 6°C (43°F). You can expect on average 2 hours of sunshine a day in Letterston during November.
- 10°C max day temperature10
- 2 hours of sunshine per day2
- 19 days with some rainfall19
- 6°C min night temperature6
- 133 mm of monthly rainfall133
On average 133 mm (5.2 inches) of rain normally falls in Letterston during November with rain falling on 19 days of the month.
Letterston weather in December
The average maximum daytime temperature in Letterston in December is a cool 9°C (48°F), while the average minimum night-time temperature is a cold 4°C (39°F). You can expect on average 2 hours of sunshine a day in Letterston during December.
- 9°C max day temperature9
- 2 hours of sunshine per day2
- 20 days with some rainfall20
- 4°C min night temperature4
- 138 mm of monthly rainfall138
On average 138 mm (5.4 inches) of rain normally falls in Letterston during December with rain falling on 20 days of the month.