St Asaph weather
Ruthin, Denbighshire
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Right now in St Asaph: 9°C, clear sky. Today: high 11°C, low 6°C, 14% chance of rain, wind NE 5 mph.
Today, hour by hour
Rain radar
View full radarThe week ahead
View 10-day forecastPollen
UV index
Air quality
Sunrise and sunset
Air quality in detail
Daily Air Quality Index: 1 to 3 low, 4 to 6 moderate, 7 to 9 high, 10 very high.
Weather in St Asaph
St Asaph stands where the rivers Elwy and Clwyd meet, at the northern end of the Vale of Clwyd. The city is sheltered by hills on both sides, but the River Elwy has flooded in the past, so it’s worth checking Natural Resources Wales flood warnings after long spells of heavy rain.
St Asaph climate
| Month | Average high | Average low | Rainfall | Rain days |
|---|---|---|---|---|
| January | 7°C | 3°C | 74 mm | 14 |
| February | 7°C | 3°C | 66 mm | 13 |
| March | 9°C | 4°C | 66 mm | 14 |
| April | 12°C | 5°C | 66 mm | 13 |
| May | 15°C | 8°C | 66 mm | 13 |
| June | 17°C | 11°C | 83 mm | 14 |
| July | 19°C | 13°C | 78 mm | 14 |
| August | 18°C | 13°C | 75 mm | 14 |
| September | 16°C | 11°C | 72 mm | 13 |
| October | 13°C | 9°C | 79 mm | 14 |
| November | 10°C | 6°C | 83 mm | 15 |
| December | 8°C | 4°C | 87 mm | 15 |
Averages for 1991 to 2020 from Open-Meteo’s modelled historical data, which covers the area around St Asaph rather than one weather station. A rain day has at least 1 mm of rain, as the Met Office counts it.
Questions about the weather in St Asaph
Will it rain in St Asaph today?
Probably not. The chance of rain stays at 1% or lower for the rest of today.
What’s the weather like in St Asaph this weekend?
Saturday: Light drizzle, high 8°C, low 6°C, 20% chance of rain. Sunday: Light drizzle, high 9°C, low 2°C, 16% chance of rain.
When is sunset in St Asaph today?
Sunset is at 16:38 today, and sunrise tomorrow is at 07:17.
Are there any weather warnings for St Asaph?
No Met Office weather warnings cover Denbighshire at the moment.
How wet is St Asaph in November?
On average about 83 mm of rain falls in November, spread over 15 days. Temperatures typically range from 6°C at night to 10°C by day.
Where can I check flood warnings for the rivers Elwy and Clwyd?
Natural Resources Wales issues flood alerts and warnings for the rivers Elwy and Clwyd and the rest of Wales. Check their flood warnings page, or call Floodline on 0345 988 1188. The Today page on this site also shows any NRW flood alerts near St Asaph.
The answers about today, the weekend and warnings update every hour.