Weather in Costa Brava in July

How July compares

July is the 2nd warmest month of the year in Costa Brava. Within Spain it is 43rd of 87 (Spain in July). Against London's average high of 21.8°C in July, Costa Brava is 6.7°C warmer by day and 6.1°C warmer at night.

Daytime and night-time in July

The typical July day in Costa Brava peaks at 28.5°C, but that is an average: the warmest 10% of days reach 31.8°C or more. About 87% of days top 25°C and 1 in 3 pass 30°C. Nights average 19.6°C; one night in ten drops to 16.8°C or lower, so pack a layer for evenings. Between 1991 and 2020 the hottest July day here reached 37.3°C (2009-07-23) and the coldest night 12.9°C (1997-07-05).

Rain in July

Some rain (4-8 rainy days): about 6 days with 1 mm or more, 38 mm in total. Year to year it varies a lot - the wettest July was 2014 with 115 mm, the driest 1991 with 3 mm. Humidity averages 69%.

Sea temperature in July

The sea averages 23.4°C - warm enough to swim (22°c+). Depending on the year it ranges from 22.1°C to 24.8°C. For the warmest sea here, come in August (24.8°C).

Sunshine and daylight

Around 9.7 hours of sunshine a day (estimated from cloud cover), 14.7 hours of daylight: the sun rises about 06:27 and sets about 21:22 local time in mid-July. Average cloud cover is 34%.

Is July a good time to visit Costa Brava?

Yes - it is one of the better months: hot days, manageable rain and long sunny days. The best months for Costa Brava on our scoring are July, June, August; months averaging 25°C or more: Jun, Jul, Aug.

Expect proper heat, not just pleasantly warm days

July suits travellers who want to spend time by the water and can keep more active plans away from the hottest part of the day. Temperatures reach 30°C on 34% of days, so stronger heat is a realistic part of a stay rather than a remote possibility. The warmest 10% of days reach at least 31.8°C. Loose, breathable clothing, drinking water and access to shade will make daytime plans more comfortable. If you prefer walking around without feeling hot, favour mornings and leave room for a slower midday break. Accommodation with cooling is a sensible priority if warm bedrooms disturb your sleep.

Plenty of sunshine, but keep plans flexible

With about 9.7 hours of sunshine within 14.7 hours of daylight, July gives you plenty of scope for outdoor plans without needing to fill the hottest hours. That is useful if you prefer an early start, a shaded pause and more time outside later. Rain is still part of the picture, with about 6 rainy days during the month, so do not plan on an entirely dry stay. Keep something indoors in reserve and pack a light waterproof rather than letting rain dominate your luggage choices. The overall balance favours time outdoors, but a flexible itinerary is more sensible than relying on sunshine every day.

Swimming weather, with a layer for the evening

The sea is a strong reason to choose July: its average temperature is comfortably within the swimming range, rather than the bracing category. The year-to-year range of 22°C to 25°C means it can feel fresher in some summers, but swimming remains a reasonable expectation. Pack swimwear and sun protection, alongside light clothes for the day. Evenings are warm on average, though the coldest 10% of nights fall to 16.8°C or below. A light jumper or cardigan is therefore useful if you plan to stay outside late. July works well if your priority is swimming and warmth rather than consistently cool conditions for active days.