Costa del Sol Weather in January

Mild rather than warm. January is the coolest month of the year for the air here, with afternoons averaging about 16°C and nights about 10°C. On a calm, sunny day that is shirtsleeve weather at lunchtime on a sheltered terrace, and a balcony that catches the low sun stays pleasant for hours. Step into the shade, or wait until the sun has gone, and you will want a proper jacket: this month the gap between sun and shade matters more than the number on the forecast.

Málaga is a little milder. Its airport averages 17.4°C on January afternoons against 16.3°C at Gibraltar, the nearest official station to Sabinillas, so this end of the coast runs about a degree cooler in midwinter and gets more rain. An average January here brings about 105 mm, spread over around 8 days of 1 mm or more. It tends to come in bursts, with bright, washed-clean days in between, rather than as weeks of drizzle.

Sunshine averages about 5 hours a day. Snow at sea level is virtually unheard of; winter only feels like winter in the hills inland and in towns at altitude such as Ronda, which is several degrees colder than the coast.

Briefly, if you like cold water. Satellite measurements of the sea off Sabinillas (NASA JPL MUR, 2003–2025) put the January average at 15.4°C. The chilliest January in the record, 2009, averaged 14.0°C and the mildest, 2010, 16.1°C, so it varies little from one year to the next. That is cold for a leisurely swim but fine for a quick plunge if you are used to cold water.

January has the coldest air of the year but not the coldest sea. Water holds its heat far longer than air, so the Mediterranean goes on cooling for several more weeks and reaches its lowest point in February, at about 14.8°C, before it starts to recover in March. The cooler summer sea that sets this end of the coast apart from Málaga is a June-to-October effect: in January the water off Sabinillas is no colder than off Málaga, and on average a fraction warmer.

Winter brings more swell. Modelled wave data for the sea just offshore (2022–2025) has about 32% of January days below half a metre and roughly one in three, 33%, with waves of a metre or more. Pick the sunny middle of a calm day, keep the dip short, have warm clothes waiting on the sand, and do not go in alone when a swell is running.

Spain's Christmas lasts until 6 January, so the first days of the year still feel festive. New Year's Day, Friday 1 January 2027, is a public holiday and some attractions close, the Caminito del Rey among them. Málaga keeps its Christmas lights and markets going until Reyes. Sunday 3 January is on Andalucía's list of permitted shopping Sundays, so the larger stores may trade.

On the evening of Tuesday 5 January the Three Kings parade through every town. Wednesday 6 January, Día de Reyes, is a national holiday: shops, supermarkets and banks close, and most restaurants either shut or serve one long family lunch, so do your shopping on the 5th. Normal life resumes on Thursday 7 January, when the January sales, the rebajas, traditionally begin and the decorations come down. From then on the coast settles into its quietest weeks of the year.

The light keeps a different timetable from home. Spain keeps Central European time, an hour ahead of the UK, which pushes winter sunrise late: the latest sunrises of the year fall in the first half of the month, at around half past eight, later than in London. The evenings make up for it. On 1 January the sun sets at 18:16 in Sabinillas against 16:02 in London; by the 31st it is 18:45 against 16:47, and daylight has grown to 10.4 hours from 9.7.

Think layers rather than the winter coat you wear at home. A T-shirt or shirt under a jumper covers the middle of the day, and a warm, windproof jacket covers the evenings, when the temperature drops towards 10°C and the terraces lose the sun. Pack a hooded waterproof and shoes that cope with wet pavements for the rainy days. The low sun is bright, so bring sunglasses and a little sun cream: plenty of January visitors go home with a tan line. Tiled floors are cool underfoot, so slippers or thick socks help indoors; the apartment's air conditioning doubles as heating. For Ronda or the mountains, add a hat and gloves.

On paper December and January are close: December averages about 17°C by day with a sea of 16.1°C, against 16°C and 15.4°C in January. The difference is the calendar. December has the lights, the markets, the early-December long weekend and the most rain of the year, about 123 mm; January, once Reyes is over, is quieter and a little drier. February turns slightly milder by day, at about 17°C, with more sunshine (6 hours a day against 5) and later sunsets, but its sea is the coldest of the year. Choose January for the Reyes week or the emptiest coast, and February if longer, brighter days matter more.