For Tywyn :
No gale warning.
For the night from Saturday to Sunday WNW force 1 in the early part of the night becoming force 2. Gusts reaching 13 knots at the end of the night.
Smooth to slight sea. Low, short swell from WSW. Visibility reduced by mist becoming poor in the middle of the night then poor. Daytime of Sunday 25 may : The atmosphere will remain unstable.
Skies changeable to very cloudy. Light showers all day. In the evening, good clear periods but lots of cloud, too.
Light showers. W force 2 in the morning becoming force 3 in the middle of the day. Gusts reaching 18 knots in the evening. Smooth to slight sea. Low, short swell from WSW. Poor visibility becoming excellent in the middle of the day then good.