For Tywyn :
No gale warning.
The reliability of the situation is very good.
Dark, overcast skies with cloud and bad weather. Some drizzle increasing in the afternoon. In the evening, clear periods developing.
Chance of light rain. SW force 1 freshening NNW force 4 in the middle of the day then force 3. Gusts reaching 17 knots in the middle of the day. Slight sea. Low, fairly long swell from WSW. Visibility reduced by mist becoming reduced by mist in the middle of the day then good.