Valley Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Valley.
Climate overview of Valley
The climate in Valley, Gwynedd, United Kingdom, sees a moderate range of temperatures across the year, from 19°C (66°F) in July down to 10°C (50°F) in February.
Rainfall is high, totalling around 1055 mm (42 in) per year. November is the wettest month and May the driest.
Valley Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Valley — and find the best time to visit.
Monthly Temperature in Valley
The climate in Valley experiences moderate temperature changes, with mild shifts between seasons. Average maximum daytime temperatures range from a pleasant 19°C (66°F) in July, the warmest time of the year, to a chilly 10°C (50°F) during cooler months like February.
At night, you can expect temperatures ranging from 14°C (57°F) in July to around 5°C (41°F) during February.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Valley
Valley experiences significant rainfall throughout the year, averaging 1055 mm (42 in) of precipitation annually. While rainfall varies throughout the year, each season offers its own charm. November brings wetter days averaging 121 mm (4.8 in) of precipitation, spread over 20 rainy days.
In contrast, the driest month May experiences a drier climate, with about 67 mm (2.6 in) of rainfall spread across 15 rainy days. For more details, please visit our Valley 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 Valley
Frequently asked questions about the climate in Valley
What is the best time to visit Valley?
July, August and September typically offer the most optimal weather in Valley. In contrast, January, February, November and December tend to have less optimal conditions.
What temperatures can I expect in Valley?
Daytime highs range from 10°C (50°F) in February to 19°C (66°F) in July. Nighttime lows range from 5°C (41°F) to 14°C (57°F).
How much rain does Valley get?
Annual rainfall is around 1055 mm (42 in). November is the wettest month with 121 mm (4.8 in), while May is the driest with 67 mm (2.6 in).
Valley 3-Day Forecast
Valley 3-Day Forecast
Valley on the map
Valley is highlighted — select any city to see its climate.
Popular this month
Where to go in July — average daytime high across popular destinations.
London
23°C (73°F) Bath22°C (72°F) York22°C (72°F) Manchester
21°C (70°F) Edinburgh
19°C (66°F) Glasgow19°C (66°F) Torquay20°C (68°F) Blackpool19°C (66°F) 
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