Mallorca in August: weather, temperatures and rain days

1What the weather is like in Mallorca in August

In August summer in Mallorca reaches its peak: highest daytime values, warmest nights, warmest sea. Rain rarely falls. When it comes, it is often a heavy shower or a thunderstorm, because the monthly amount is spread over very few days.

On average over the years 2011 to 2025, the Palma de Mallorca CMT station reaches 30.9 °C by day and 23.6 °C at night in August. On 1.5 days at least 1 mm of rain falls, adding up to 21.0 mm in the month.

For comparison: in July the average high is 30.6 °C, in September it is 28.3 °C. For rainfall, August ranks number 10 of 12 months. The wettest is November with 87.3 mm, the driest is July with 2.7 mm.

Individual days deviate strongly from the average. The highest value for August in the years 2011 to 2025 was 39.1 °C on 13 August 2022, the lowest 17.1 °C on 27 August 2023.

The figures apply to Palma right on the coast. Inland and in the Serra de Tramuntana, the weather can turn out very different on the same day.

2Day by day: August in Palma in the calendar

The calendar shows for each day in August the average high and low for the years 2011 to 2025 and the share of years in which at least 1 mm of rain fell on that date. These are averages from past years and not a forecast. For the next few days, see the live forecast for Mallorca.

Averages of past years, not a forecast. Station: PALMA DE MALLORCA CMT. Data: NOAA GHCN-Daily.

3Sea temperature in Mallorca in August

Off the Bay of Palma the sea averages 26.9 °C in August. In July it is 25.7 °C, in September 25.9 °C. The sea does not get any warmer over the course of the year. Swimming is possible without restriction.

The value comes from the NOAA OISST satellite analysis for open water off the bay, averaged over 2011 to 2025. In shallow coves and right at the beach the water can be warmer or colder.

4What to pack for Mallorca in August

In August you need the same as in July: light clothing, hat, sunglasses, strong sun cream and swimwear. A water bottle belongs in every bag. For a possible thundery shower, a thin jacket in your luggage is enough.

5Which activities suit the weather in August

• Beach: Best swimming conditions of the year, plan for shade at midday.
• Boat trip: Very good, the water is at its warmest now.
• Hiking: Only early in the morning and short. The heat should not be underestimated.
• Caves: Pleasantly cool when it is hottest outside.
• City: Early or late in the day. At midday shady places and indoor spaces are the better choice.

The climate table for Mallorca and the overview of the best time to visit show how August fits into the whole year. Right next to it are July and September. The travel guide mallorcaplaner.com collects ideas for outings.