Weather in Spain in August

August climate overview

Daytime highs across Spain in August run from 22.4°C (Puerto de la Cruz) to 35.2°C (Seville). In Seville about 100% of August days reach 25°C. Nights average 22.1°C; the coldest 10% of nights in Puerto de la Cruz fall to 19°C or below.

Rainfall in August

Expect around 2 rainy days (1 mm or more) in August, with Fuerteventura the driest (0 days) and San Sebastian the wettest (13 days). The wettest August at Seville between 1991 and 2020 was 2006 with 15 mm; the driest was 1991 with 0 mm.

Sea temperature

The sea averages 24.6°C around Spain in August - warmest at Playa de Palma (26.6°C). That is comfortable for swimming.

Sunshine and daylight

Around 10.3 hours of sunshine a day on average, out of 13.4 hours of daylight (sunshine estimated from cloud cover).

August against the rest of the year in Spain

August is the 1st warmest month of the twelve in Spain. It is 0.5°C warmer than July and 2.6°C cooler in September. The hottest month here is August (28°C) and the coolest January (16°C).

Which part of Spain in August?

• Most sunshine: Tenerife, 11.7 h a day.
• Driest: Fuerteventura, about 0 rainy days.
• Warmest sea: Playa de Palma, 27°C.
• Hottest: Seville, 35°C by day - intense for sightseeing.
• Coolest (better for walking and cities): Puerto de la Cruz, 22°C.

What to pack for Spain in August

Based on the averages: summer clothes for the day; swimwear - the sea is 25°C.

Similar weather elsewhere in August

Within 1.5°C of Spain's August daytime average: Cancun (30°C, sea 29°C), Florence (30°C), Hong Kong (30°C, sea 29°C), Guanacaste (30°C, sea 29°C), Kuala Lumpur (30°C). See the full ranking for August.

Inland Spain: plan around the midday heat

Seville is the hottest destination in the figures, with average highs of 35°C and nights at 22°C. That suits travellers who tolerate heat and are happy to keep the middle of the day quiet, rather than spend it walking outdoors. Madrid is less hot at 32°C, but still calls for shade, water and breaks indoors. Its 18°C nights offer more relief than Seville's, making evenings a better fit for longer outings. For either city, favour accommodation with cooling and put your most active plans early or late in the day. August is less suitable if you want comfortable temperatures for sustained daytime walking.

Choose your coast by sea warmth

For swimming, the clearest distinction is between the warmer seas around the Mediterranean destinations and the cooler water on the Costa de la Luz. Playa de Palma and Can Pastilla pair 31°C days with a 27°C sea, while Ibiza, Torrevieja, Benidorm and Altea have the same daytime average and 26°C water. These are good choices if warm water is your priority, though beach days still need shade and breaks from the sun. Cadiz and the Costa de la Luz also average 31°C by day, but their 23°C sea should feel more refreshing. Choose them if you prefer a cooler swim rather than the warmest water.

Expect warm evenings, or choose a milder base

Warm evenings are part of the August picture: Spain's average night temperature is 22°C, rising to 23°C in Ibiza, Playa de Palma and Can Pastilla. Pack light clothing for evenings as well as daytime, and check bedroom cooling if heat affects your sleep. For a milder daytime option, Puerto de la Cruz is the coolest destination listed at 22°C. That makes it a better match for travellers who find the hotter destinations uncomfortable, though the daytime figure alone does not tell you its sea temperature or night-time conditions. Pick your base around your heat tolerance, rather than treating Spain's country average as a forecast everywhere.