Gretna Weather in May

With daytime temperatures of 16°C (61°F) and nighttime lows of 7°C (45°F), May in Gretna brings moderate temperatures during the day. Do keep in mind that quite a bit of rainfall is typical. Around 76 mm (3 in) falls on average.

Rainfall in Gretna in May

You can expect rain on around 16 days based on historical patterns, with 76 mm (3 in) average for the month. Rain falls on many days this month, but usually in relatively small amounts. A light waterproof is more useful than a heavy umbrella.

Temperature in Gretna in May

Expect highs of 16°C (61°F) in Gretna in May, with nights dropping to around 7°C (45°F). A light jacket or extra layer can be useful, especially outside the warmest hours of the day. With overnight lows of 7°C (45°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.

Sunshine in Gretna in May

The month experiences a moderate amount of sunlight, with 161 hours of sunshine. This provides a nice balance between sunshine and clouds.

For Gretna itself, July and August generally stand out with the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.