Costa del Sol weather month by month: what to pack and when to go
The Costa del Sol is not just sunny in the brochures. The weather station at Málaga airport records roughly 2,900 hours of sunshine a year in the long-term averages published by AEMET, Spain’s state weather agency, which puts the coast among the brightest corners of mainland Europe. Even in the depths of winter you can expect five or six hours of sun on an average day.
Sunny does not always mean warm, though, and the sea takes its time to catch up with the air. A week in January and a week in August are two completely different holidays, so it pays to know what each month actually feels like before you book your holiday home and start packing.
The climate in a nutshell
The coast has a classic Mediterranean pattern: long, dry, hot summers and short, mild winters with most of the year’s rain falling between October and April. The mountains that run behind the coast shelter it from the cold northern air that reaches inland Andalusia, which is why oranges ripen in Málaga while there is snow on the Sierra Nevada a couple of hours away.
The figures below come from AEMET’s normals for Málaga airport (1981–2010), with sea temperatures taken from long-term climate averages. The towns further west towards Marbella and Estepona follow much the same pattern, while the villages in the hills are usually a few degrees cooler, especially at night.
Good to know
- About 2,900 hours of sunshine a year at Málaga airport (AEMET long-term average)
- Hottest months: July and August, with average highs of around 31°C
- Coolest month: January, with average highs of about 17°C and nights around 7°C
- Wettest months: November and December, each averaging around 100 mm of rain
- The sea ranges from about 15°C in late winter to 22–23°C in August
Month by month at a glance
Averages hide the odd heatwave or wet week, but they are a reliable guide to what is normal. Temperatures are average daytime highs and night-time lows; rainy days are days with at least 1 mm of rain.
- January: highs around 17°C, lows 7°C, about six rainy days, six hours of sun a day, sea around 15°C.
- February: highs around 18°C, lows 8°C, five rainy days, sea around 15°C. Almond blossom in the hills.
- March: highs around 20°C, lows 10°C, four rainy days, seven hours of sun, sea still about 15°C.
- April: highs around 21°C, lows 11°C, four or five rainy days, sea around 16°C. Easter crowds if Semana Santa falls this month.
- May: highs around 24°C, lows 14°C, three rainy days, more than nine hours of sun, sea around 17°C.
- June: highs around 28°C, lows 18°C, rain is rare, eleven hours of sun, sea around 20°C.
- July: highs around 31°C, lows 21°C, practically no rain, sea around 22°C.
- August: highs around 31°C, lows 21°C, humid nights, sea at its warmest at about 23°C.
- September: highs around 28°C, lows 19°C, the odd storm, sea still around 22°C.
- October: highs around 24°C, lows 15°C, four or five rainy days, sea around 19°C.
- November: highs around 20°C, lows 11°C, five or six rainy days, often heavy downpours, sea around 17°C.
- December: highs around 18°C, lows 9°C, the wettest month on average, sea around 16°C.
Winter: December to February
Winter on the coast is mild by northern European standards and many Scandinavian and British visitors come precisely for it. On a calm, sunny day you can sit outside at lunchtime in a light jumper, and a walk along the promenade in shirt sleeves is perfectly normal. The catch is the evenings and the indoors. Nights drop to single figures, many Spanish homes are built to stay cool rather than warm, and tiled floors are cold underfoot. Check that your holiday home has heating or air conditioning with a heat function, and bring slippers.
Rain tends to arrive in short, heavy bursts rather than days of drizzle. A wet day is a good excuse for the museums in Málaga; the next morning is usually blue again.
Spring: March to May
For many people who know the coast, spring is the best season of all. The hills are green, the wild flowers are out, and the days lengthen quickly. By May you can expect more than nine hours of sunshine a day and highs in the mid-twenties, which is ideal for sightseeing in Granada or Ronda. The sea is the one thing that lags behind: at 15–17°C it is bracing, and most people settle for a paddle rather than a proper swim until June.
Summer: June to September
From June to September the coast is reliably hot, dry and bright. Average highs of around 31°C in July and August are only part of the story: humidity near the sea makes nights sticky, and when the terral blows, a hot, dry wind that comes down from inland, the thermometer in Málaga can shoot towards 40°C for a day or two. Plan beach time for the morning and late afternoon, and keep the middle of the day for a long lunch and a siesta behind closed shutters.
The sea is at its best in August and September at 22–23°C. September is a favourite with those who can travel outside school holidays: the water is still warm, the light is softer and the beaches are quieter once Spanish families head home.
Local tip
When the terral is forecast, the beach is often cooler than town, and the hills cooler still in the evening. Spanish weather apps and AEMET’s website flag heat warnings by colour, so check before planning a long walk.
Autumn: October and November
October still feels like summer on many days, with highs in the low to mid-twenties and a sea that is warmer than in June. It is also when the first proper rain usually returns, and November is one of the wettest months of the year. That rain often falls as intense storms, so if a warning is issued, avoid dry riverbeds and underpasses and follow local advice.
The best months for walking, beach days and golf
- Walking and hiking: March to May and October to early November. Summer is too hot for anything strenuous in the middle of the day, and some trails in the natural parks may close in high fire-risk periods. The Caminito del Rey is at its most comfortable in spring and autumn.
- Beach holidays: late June to September for warm water; May and October for sunbathing with fewer people.
- Golf: October to May is the main season, when temperatures are perfect for 18 holes. Summer rounds are best booked for early morning. See our golf guide.
- City breaks and sightseeing: almost any time outside July and August.
What to pack, season by season
The coast is relaxed about dress, but the season matters more than many first-time visitors expect.
- November to March: layers. T-shirts for the middle of the day, a warm jumper or fleece and a light waterproof jacket for evenings and rainy spells, plus something warm to wear indoors.
- April, May and October: summer clothes plus a light jacket or cardigan for the evening. Swimwear for the pool or the brave.
- June to September: light cotton or linen, a hat, high-factor sun cream and sunglasses. Bring something to cover shoulders for churches and a light layer for air-conditioned restaurants.
- All year: comfortable walking shoes for cobbled old towns and a reusable water bottle.
Staying longer: winter on the coast
Mild winters are the reason so many northern Europeans spend months rather than weeks here. If you are thinking about a longer winter stay, look at our long-term rentals, where monthly rates are usually far lower than holiday prices. Owners who want to reach these winter guests can list their home on Spainholiday and make the most of the off-season.
Top photo: Tyk, CC BY-SA 3.0, via Wikimedia Commons.
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Frequently asked questions
What is the warmest month on the Costa del Sol?
July and August are the warmest, with average highs of around 31°C at Málaga airport. August also has the warmest sea, at around 23°C.
Is it warm enough to swim in winter?
The sea is around 15–16°C from December to March, which most people find too cold for more than a quick dip. Heated pools make winter swimming much more realistic.
When does it rain most on the Costa del Sol?
Most rain falls between October and April, with November and December the wettest months on average. Summer is almost completely dry.
What is the best month for golf on the Costa del Sol?
October to May offers the most comfortable temperatures for golf. In summer, book early tee times to avoid the heat of the afternoon.
Do I need a jacket in winter on the Costa del Sol?
Yes. Days are often mild and sunny, but evenings drop to around 7–10°C and homes can feel cold, so bring a warm layer and a light waterproof.
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