Your holiday weather, at a glance

Guernsey in May: where is it warmest?

In May, Saint Peter Port averages 13 °C by day.

All destinations in May, warmest first

Long-term averages for the month: daytime high, sea, sunshine and rainy days.

Place	Score	Air	Sea	Sun	Rain days
Saint Peter Port	59	13°	12°	8 h	8

Guernsey in May: where is it warmest?

The warmest places in May are Saint Peter Port (13 °C).

Guernsey in May: where is the sea warmest?

The sea is warmest at Saint Peter Port (12 °C).

Guernsey in May: where is the weather best?

The best holiday weather in May – warm, sunny and dry – is in Saint Peter Port.

Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences