Caernarfon 14-Day Forecast
Gwynedd, Wales
Caernarfon Outlook (Next 14 Days)
Today in Caernarfon, some showers likely, with brighter breaks between will do much of the talking. a comfortable feel sits underneath. Winds stay fairly light, so any chill is more about cloud and dampness than exposure. Inland areas may be somewhat drier at times.
overall, Caernarfon stays under a changeable pattern, with alternating spells and comfortable temperatures overall. The charts show the clearest signal of how the pattern shifts, with the daily table adding the practical day-by-day context. As the wider pattern evolves, the detail can adjust between updates, even when the overall direction stays the same. Confidence is naturally strongest in the nearer days; later on, treat it as a guide to the prevailing theme rather than exact timing.
Daily Forecast
| Date | High | Low | Condition | Wind | Rain % | Humidity | Visibility | UV | Sunrise | Sunset |
|---|---|---|---|---|---|---|---|---|---|---|
| Thu, 4 Jun | 15°C | 11°C | Moderate rain | 37 km/h | 94% | 90% | 9 km | 4 | 04:54 AM | 09:36 PM |
| Fri, 5 Jun | 14°C | 8°C | Patchy rain nearby | 27 km/h | 73% | 77% | 10 km | 6 | 04:53 AM | 09:37 PM |
| Sat, 6 Jun | 15°C | 10°C | Patchy rain nearby | 28 km/h | 88% | 84% | 9 km | 3 | 04:52 AM | 09:38 PM |
| Sun, 7 Jun | 14°C | 11°C | Moderate rain | 40 km/h | 94% | 88% | 9 km | 5 | 04:52 AM | 09:39 PM |
| Mon, 8 Jun | 14°C | 9°C | Moderate rain | 37 km/h | 95% | 89% | 8 km | 3 | 04:51 AM | 09:40 PM |
| Tue, 9 Jun | 14°C | 8°C | Patchy rain nearby | 34 km/h | 74% | 86% | 8 km | 3 | 04:51 AM | 09:41 PM |
| Wed, 10 Jun | 15°C | 12°C | Patchy rain nearby | 39 km/h | 76% | 88% | 8 km | 3 | 04:50 AM | 09:42 PM |
| Thu, 11 Jun | 17°C | 11°C | Patchy rain nearby | 14 km/h | 73% | 77% | 9 km | 3 | 04:50 AM | 09:42 PM |
| Fri, 12 Jun | 21°C | 10°C | Patchy rain nearby | 8 km/h | 73% | 75% | 10 km | 4 | 04:50 AM | 09:43 PM |
| Sat, 13 Jun | 24°C | 15°C | Cloudy | 6 km/h | 10% | 76% | 10 km | 4 | 04:50 AM | 09:44 PM |
| Sun, 14 Jun | 22°C | 14°C | Partly Cloudy | 17 km/h | 6% | 83% | 10 km | 5 | 04:49 AM | 09:44 PM |
| Mon, 15 Jun | 20°C | 13°C | Sunny | 10 km/h | 5% | 81% | 9 km | 5 | 04:49 AM | 09:45 PM |
| Tue, 16 Jun | 20°C | 13°C | Sunny | 23 km/h | 4% | 79% | 10 km | 5 | 04:49 AM | 09:45 PM |
| Wed, 17 Jun | 17°C | 10°C | Partly Cloudy | 18 km/h | 7% | 82% | 8 km | 4 | 04:49 AM | 09:46 PM |
Temperature Trend
Rain Probability
Wind Speed
UV Index
Forecast context and reference links
When forecasts change between updates, it is commonly driven by small shifts in storm track or blocking position. The links below give stable context that helps you read those changes.
- 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 Jet Stream, Air Mass, Zonal Flow, Atmospheric Blocking, Weather Front, and Pressure Trend.
FAQ
What is the outlook for Caernarfon over the next 14 days?
The 14-day guidance for Caernarfon points to Patchy rain nearby featuring frequently, with day-to-day details changing as systems move through. Temperatures hold fairly steady overall. Typical range: highs up to 24°C, lows down to 8°C. Rain-risk signal: 95% at peak (9 higher-risk days). Wind: a windiest-day signal around 40 km/h. UV: peaks around 6 on brighter days. Use days 1–5 for practical planning; beyond that, treat it as guidance on the broader direction.
How reliable is the two-week outlook for Caernarfon?
In UK conditions, day-to-day details can shift as Atlantic systems wobble north or south. Treat the first few days as planning-grade, and the second week as guidance on the broader pattern.
Does the Caernarfon forecast include hourly weather today?
Yes. The page includes hourly detail for the immediate period and a daily breakdown for the wider outlook. Hourly precision drops off faster than daily trends, so keep an eye on updates.
Are temperatures rising or falling in Caernarfon over the next 14 days?
Across the next two weeks in Caernarfon, Temperatures hold fairly steady overall. The clearest signal is in the highs/lows chart: look for whether the lines drift up, down, or stay broadly level.
What does the ‘headline condition’ mean in the Caernarfon forecast?
It is the day’s most likely overall weather type (for example, rain, cloud or sunshine) based on the dominant signal. Short-lived changes can still occur, so use the daily table and charts to see wind peaks and rain-risk windows.