There are three distinctive weather zones in Andalucia.
THE COASTAL ZONE - MÁLAGA, CÁDIZ, HUELVA, ALMERÍA
The Andalusian coast, Costa del Sol and Marbella experiences hot summers where it is possible to sunbathe almost every day from June until September with little or no rain. Daily highs reach 35° C and nights as low as 15° C but definitely always short sleeve weather. From hot summers to mild winters where one might experience a mixture of beautiful clear, sunny winter days as well as overcast but warm days. The evenings are noticeably cooler but the nightly low rarely reaches below 10° C while during the day highs remain around 20° C.
Hot Summers
Sunbathing almost every day from June to September. Virtually no rain. Daily highs about 35C and nightly lows 15C. Shirt sleeve weather all the time evenings included.
Mild Winters
Mixture of beautiful clear, sunny winter days with overcast but warm days. Evenings noticeably cooler. First rains are late September or early October, can be heavy rarely last more than a day or two. Daily highs about 20C and nightly lows rarely much below 10C. Pullover in the day, jacket in the evening.
INLAND LOWLAND ZONE - SEVILLE, CÓRDOBA, JAÉN
Very Hot Summers
Hot sun almost every day from June to September. Virtually no rain. July and August almost too hot. Daily highs up to 40C and nightly lows 18C. Shirt sleeve weather all the time evenings included.
Mild Winters
Mixture of beautiful clear, sunny winter days with overcast but warm days. Evenings noticeably cooler. First rains are late September or early October, can be heavy rarely last more than a day or two. Daily highs about 20C and nightly lows rarely below 10C. Pullover in the day, jacket in the evening.
INLAND HIGHLAND ZONE - GRANADA, JAÉN, SIERRA NEVADA
Warm Summers
Sunny almost every day from June to September. Virtually no rain. July and August still hot. Burning power of the sun is deceptive in highlands. Daily highs up to 30C and nightly lows 8C. Shirt sleeve weather in the days perhaps a pullover in the evenings.
Cool Winters
Mixture of beautiful clear, sunny winter days with overcast but cool days. Evenings noticeably much colder after the sun sets. First rains are late September or early October, can be heavy rarely last more than a day or two. Daily highs about 20C and nightly lows down to freezing. Pullover or jacket in the day, warm coat in the evening. Room heating required.
| Malaga | Cadiz | Sevilla | Granada | Almeria | |
|---|---|---|---|---|---|
| Clear days | 111 | 142 | 127 | 121 | 105 |
| Cloudy days | 205 | 182 | 194 | 183 | 220 |
| Covered days | 49 | 41 | 43 | 61 | 40 |
| Hours sunshine per year |
2912 | 2969 | 2917 | 2915 | 2992 |
| Perceptible rain days | 60 | 69 | 66 | 76 | 41 |
| Stormy days | 13 | 13 | 9 | 11 | 7 |
| Misty days | 101 | 28 | 19 | 21 | 9 |
| Frosty days | 0 | 0 | 3 | 48 | 0 |
| Tropical nights | 60 | 89 | 52 | 3 | 83 |
Source: Guía Resumida del Clima en España (1981-2010), AEMET. (link)
Figures per year, rounded to nearest whole number.
Perceptible rain is greater than 0.1 mm
Tropical night is min temp greater than 20 C
Costa del Sol has 320 days of sun a year?
"Costa del Sol has 320 days of sun a year" or "Costa del Sol has more than 320 days of sun a year" or "Costa del Sol has 320 days plus of sun a year" is quoted everywhere from Tourist Board website to real estate websites and many blogs. It is true?
Actually it is not true. The best source is the last AEMET (Spanish met office) detailed 30 year report. The summary is in the table above. Malaga had on average 111 days of full sun (dawn to dusk), 205 days with clouds (or if you prefer; partial sun) and 49 covered (overcast) days. So one could say that, on average 'Costa del Sol has 316 days a year with sunshine' or 'Costa del Sol has 111 days of sun a year'. Malaga has 2.912 hours a year, an average of almost exactly 8 hours a day. One could also say on average 'On the Costa del Sol, the sun shines two thirds of the day'. All of which make for a very agreeable climate.
The Costa del Sol is actually sunnier and warmer in the east at Nerja than in the west in Estepona. This is due to the influence of the Strait of Gibraltar. Malaga in the centre has 2.912 hours of sunshine a year and Almeria further east has 2.992.