Half-moon Bay Weather in May

May in Half-moon Bay brings moderate temperatures, with daytime highs of 13°C (55°F) and nights around 8°C (46°F). Quite a bit of rainfall is expected, around 114 mm (4.5 in), so pack an umbrella.

Rainfall in Half-moon Bay in May

You can expect rain on roughly 26 days based on historical data, averaging 114 mm (4.5 in) for the month. This month brings frequent, heavy showers. Both the number of wet days and the rainfall totals are on the high side.

Temperature in Half-moon Bay in May

May in Half-moon Bay brings moderate temperatures, with highs of 13°C (55°F) and nights around 8°C (46°F). Even when the weather is stable, mornings and evenings can still feel distinctly cool. With lows around 8°C (46°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.

Sunshine in Half-moon Bay in May

With limited sunshine this month, there are about 88 hours of sun. It's ideal for those who prefer a cooler, cloudier climate.

May in Half-moon Bay has its charm. However, if you're seeking pleasant, dry and sunny weather, our weather planner can help you explore other destinations in the world.