May weather forecast
Gibraltar, Gibraltar

May marks the start of the warmer season in Gibraltar with temperatures and sea temperatures both recording a noticeable increase. The rainfall significantly retrenches to just 25mm (0.98") spread over four days, marking the beginning of a drier phase for the region. Daylight extends to approximately 14.1 hours per day coupled with an upsurge in daily sunshine hours. This shift in climatic conditions permits additional time for outdoor pursuits and exploration. The UV index increases to eight, making protection from the sun essential during this period.

Temperature

With the transition into May, Gibraltar experiences a subtle uplift in average high-temperatures, adjusting from a pleasant 20°C (68°F) in April to a moderately hot 23°C (73.4°F). In Gibraltar, the average temperature during the nights of May drops to a mild 15°C (59°F).

Rainfall

In Gibraltar, in May, during 4 rainfall days, 25mm (0.98") of precipitation is typically accumulated. In Gibraltar, during the entire year, the rain falls for 63.5 days and collects up to 767mm (30.2") of precipitation.

Sea temperature

In May, the average sea temperature is 18.5°C (65.3°F).
Note: The enjoyment of swimming decreases for most when the surface water temperature is 18.5°C (65.3°F). Breathing control becomes increasingly challenging as temperatures descend below 21°C (69.8°F).

Daylight

The average length of the day in May is 14h and 5min.
On the first day of May, sunrise is at 07:27 and sunset at 21:09. On the last day of the month, sunrise is at 07:05 and sunset at 21:32 CEST.

Sunshine

In Gibraltar, the average sunshine in May is 10h.

UV index

In Gibraltar, Gibraltar, the average daily maximum UV index in May is 8. A UV Index reading of 8 to 10 represents a very high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In May, the average maximum UV index of 8 translates into the following recommendations:
Take extra precautions. Protection against sun damage is required. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.