Caernarfon Rain Forecast
Gwynedd — Precipitation & Rainfall
Caernarfon Rain Outlook
In Caernarfon today, some showers likely, with brighter breaks between is the headline message for the day ahead.
Over the coming fortnight, rainfall in Caernarfon is likely to bring a recurring shower theme, with dry spells in between. Drier conditions at times will offer brief respite, but the broader wet theme looks set to persist.
Current & Today
Now
Today
Today’s Hourly Rain Chance
14-Day Precipitation
Rain Charts
Forecast context and reference links
This page focuses on practical interpretation for Caernarfon. When the guidance becomes mixed, it is usually a regime question first, rather than a single hourly detail.
- Wales Climate for regional patterns and seasonal tendencies.
- UK Climate Overview for a national baseline and how regions compare.
- Wales for location browsing and regional navigation.
How to interpret confidence
For how forecast reliability changes with lead time, see Forecast Confidence. For transparency on how WeatherEngland sources and updates data, see Methodology.
Background guides
- UK Weather Patterns
- UK Seasonal Weather
- UK Weather Hazards
- UK Weather Safety
- UK Jet Stream
- UK Microclimates
Glossary support
Start with the Weather Glossary. Useful terms for this page include Weather Front, Cold Front, Warm Front, Occluded Front, Relative Humidity, and Dew Point.
FAQ
Will it rain in Caernarfon today?
Rain risk in Caernarfon today is around 94%. Timing can vary locally, especially with showers and passing fronts.
What is the chance of rain in Caernarfon over the next 14 days?
The 14-day rain outlook for Caernarfon shows day-by-day rain chances and an overall wet/dry signal. Use the first few days for detail and the later period for broader risk.
What does ‘chance of rain’ mean for Caernarfon?
It’s the likelihood of measurable precipitation at some point — it does not mean it will rain continuously or everywhere in the area.
When is rain timing most reliable in Caernarfon?
Timing is usually most reliable in the next 24–72 hours. Beyond that, use the outlook to understand overall risk rather than exact hours.
Does the rain forecast for Caernarfon include showers and drizzle?
Yes — the precipitation outlook covers all measurable precipitation types. Light drizzle can be harder to pin down precisely than organised rain bands.