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North Wales Weather in September
September in North Wales averages 25°C (77°F) during the day and 13°C (55°F) at night. Quite a bit of rainfall is typical this month, with around 106 mm (4.2 in) on average. An umbrella is a good idea.
Rainfall in North Wales in September
Looking at the last 30 years, the data shows about 8 days with rain, averaging 106 mm (4.2 in) for the month. Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.
Temperature in North Wales in September
September in North Wales brings high temperatures, with highs of 25°C (77°F) and nights around 13°C (55°F). This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. With overnight lows of 13°C (55°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.
Sunshine in North Wales in September
Expect sunny days throughout the month, with an estimated 218 hours of sunshine. This makes it a pleasant time to visit North Wales.If you're a fan of comfortable temperatures and drier conditions, September is a great time to visit.
North Wales Temperature in September
Min Temperature
13°C (55°F)
Max Temperature
25°C (77°F)
Chance of Rain
27%
Precipitation
106 mm (4.2 in)
Rainy days
8 days
Humidity
72% *
Sunshine
218 hours *
Percentage Sunshine
59% *
* Data from: Philadelphia, the United States of America (30 KM, 18 Miles).
North Wales Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in North Wales - and find the best time to visit.
Best Places in the United States of America in September
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in September →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in North Wales in September
Warm but pleasant conditions in North Wales in September. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Expect heavy rainfall, so bring good rain protection and waterproof bags. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.
What To Do in North Wales in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming9/10 -
Cycling7/10 -
Walking7/10 -
Camping6/10 -
Outdoor sports7/10
North Wales 3-Day Forecast
More climate data for North Wales
Temperature Rainfall Sunshine Humidity
See the full North Wales climate overview or explore weather in the United States of America.
Popular in September
Where to go in September - average daytime high across popular destinations.
Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
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