Caernarfon (Gwynedd) weather

Headline:

Cooler and cloudier today with a chance of showers.

Today:

Today will be a cooler day for most with patchy rain gradually dying away this morning, but staying largely cloudy this afternoon. Some southern areas may hold onto sunnier and warmer conditions until around midday. Breezy in the west. Maximum temperature 16 °C.

Tonight:

Any showers fizzling away this evening with most of Wales becoming dry overnight. Staying cloudy for many but clear periods are likely in the west. Somewhat colder than last night. Minimum temperature 3 °C.

Monday:

Rather cloudy for many first thing, but sunny spells developing and becoming increasingly fine and bright through the afternoon. Feeling pleasantly warm in the spring sunshine with light winds. Maximum temperature 15 °C.

Outlook for Tuesday to Thursday:

Patchy light rain and drizzle on Tuesday. Dry thereafter with cloudy periods and sunny spells. Temperatures above average and feeling pleasantly warm in the sunshine, albeit with some chilly nights.

The final week of March into the start of April looks to be characterised by a slowly evolving, but changeable weather pattern. Initially, a dry interlude is likely with spells of sunshine across many areas. With time, these drier conditions will become more favoured across the south. Further north and northwest, there is a greater chance of rain or showers at times, these accompanied by windier spells and a chance of gales for parts of the far northwest. There is a small chance that these wetter, more unsettled conditions could become more widespread for a time. Temperatures will probably pan out close to average overall, though chilly nights remain possible where clear skies coincide with light winds.

Confidence is lower than normal, but blocked or slow-moving weather patterns are most probable through the middle of April. This can lead to slow-moving areas of low and high pressure and, depending on their location, this can result in periods of either dry conditions or wetter episodes with rain or showers. Temperatures will vary, with some large day-to-day swings possible, but overall are likely to be near average.