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Llanfflewyn, Gwynedd

16 Day Weather Forecast

Overview

The pattern appears changeable, with neither high nor low pressure fully in control. A balance of wet and dry days looks likely.

On some days temperatures will be high enough to make the weather feel reasonably pleasant. Wednesday 26 August should see the best of any milder weather, with highs of 19°C. Even overnight lows remain mild, with Friday 21 August seeing the lowest at 13°C.

A blustery spell is expected around Friday 28 August, bringing gusts of 43mph. Rainfall totals could be significant, with around 53mm over the period. The wettest day looks to be Friday 28 August, with around 17mm possible.

These forecasts use interpolation to improve accuracy for your specific location, and are powered by either ECMWF or GFS model data depending on your selection. As with all weather forecasts, confidence decreases rapidly beyond 5 days ahead — treat the later dates as a heads-up about possible conditions rather than a firm prediction.

If you have a moment, please let us know what you think.

Read more

Date Weather Temp Wind
Wed
19 Aug
Weather 16°C Wind direction 14mph
Thu
20 Aug
Weather 15°C Wind direction 13mph
Fri
21 Aug
Weather 15°C Wind direction 15mph
Sat
22 Aug
Weather 14°C Wind direction 14mph
Sun
23 Aug
Weather 14°C Wind direction 10mph
Mon
24 Aug
Weather 16°C Wind direction 3mph
Tue
25 Aug
Weather 17°C Wind direction 15mph
Wed
26 Aug
Weather 17°C Wind direction 13mph
Thu
27 Aug
Weather 14°C Wind direction 12mph
Fri
28 Aug
Weather 17°C Wind direction 16mph
Sat
29 Aug
Weather 15°C Wind direction 22mph
Sun
30 Aug
Weather 15°C Wind direction 21mph
Mon
31 Aug
Weather 16°C Wind direction 21mph
Tue
01 Sep
Weather 18°C Wind direction 31mph
Wed
02 Sep
Weather 18°C Wind direction 10mph
Hourly 30 day
Issued: 18/08 18:11 | Help

Graphs

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Max temp Min temp Surface Pressure Wind speed Wind gust
Rain total Freezing level Cloud cover Humidity

High impact weather

Assess the chance of frost, strong winds, heavy rain, and snow based on the data utilised in this forecast.

Will it forecasts

Data from different computer models is blended to increase accuracy.

Will it rain in Llanfflewyn, Gwynedd

Will it be hot in Llanfflewyn, Gwynedd

Will it snow in Llanfflewyn, Gwynedd

Will it be frosty in Llanfflewyn, Gwynedd

Will it thunder in Llanfflewyn, Gwynedd

MOGREPS-G forecast

Forecast charts using data from the UK Met Office MOGREPS-G ensemble model.

Information about MOGREPS-G.

GEFS forecast

Forecast charts using data from the NCEP GEFS ensemble model.

Sun & Moon Calendar for Llanfflewyn, Gwynedd

View complete sun & moon times, phases and celestial data for Llanfflewyn, Gwynedd