Weather on Costa Blanca — When to Visit?
Month-by-month guide: temperatures, sea water, what to pack and when to find the best deals
Costa Blanca is one of the sunniest places in Europe — over 300 sunny days a year, mild winters and hot summers make the region attractive to visitors all year round. But when is the best time to visit Costa Blanca? The answer depends on whether you are looking for beach time, sightseeing or a quiet stay at low prices. In this guide you will find exact air and sea temperatures month by month, learn what gota fria is and what to pack for every season.
Why is the weather on Costa Blanca exceptional?
• 300+ sunny days — one of the best climates in Europe
• Mild winters — 15-18°C in January, no frost or snow
• Long swimming season — from May to October
• Minimal rainfall — rain mainly in autumn (gota fria)
• WHO-recognised climate — as one of the healthiest in the world
• 2,800+ hours of sunshine — almost double that of the UK
What is the weather like on Costa Blanca in January and February?
Winter on Costa Blanca feels like early spring in northern Europe — daytime temperatures of 14-18°C, night-time 5-8°C. Rain is sporadic (3-4 days per month). This is the ideal time for those escaping cold northern winters. Accommodation prices are the lowest of the year — up to 40-50% cheaper than in summer. Beaches are empty and local restaurants are peaceful. Residents of Gran Alacant stroll in t-shirts while it snows back home.
Ideal for: digital nomads, retirees, couples seeking tranquillity, remote workers
What is the weather like on Costa Blanca in March and April?
Spring is a magical time on Costa Blanca. Almond trees bloom from late January, and in March orange and lemon trees follow. Temperatures are ideal for sightseeing — not too hot, not too cold. Easter (Semana Santa) is a busy tourist period with fascinating religious processions in Alicante and surrounding towns. The sea is still too cool for swimming, but the weather is perfect for sunbathing.
Ideal for: sightseeing, hiking, Easter celebrations, photographers, spring breaks
What is the weather like on Costa Blanca in May and June?
This is the best time to visit Costa Blanca! Temperatures are pleasantly warm, the sea becomes ideal for swimming (especially from mid-May), and the beaches are not yet overcrowded. Prices are lower than in peak season. Rain virtually never falls — you can count on cloudless skies almost every day. Days are long (sunset after 9 pm in June), giving plenty of time for beach days and evening promenade walks.
Ideal for: beaches, swimming, families with children, active holidays, couples
What is the weather like on Costa Blanca in July and August?
Peak season — hot, crowded and expensive. Temperatures regularly exceed 32°C, and during heat waves can reach 38-40°C. The sea feels like a pool at 25-26°C. This is school holiday time, so beaches are full and accommodation prices are at their highest. There is virtually no rain. The key is to avoid the sun between 12:00 and 17:00 (siesta!), use high UV protection and stay well hydrated. Evenings are warm (22-25°C) and perfect for dining al fresco.
Ideal for: heat lovers, families during school holidays, nightlife
What is the weather like on Costa Blanca in September and October?
September is Costa Blanca's hidden gem — the sea is at its warmest all year (25°C in September!), tourists leave and prices drop. The only risk is gota fria — sudden downpours that can occur from mid-September to the end of October. Between rainy episodes the weather is sunny and warm. October offers 22-24°C air and sea still above 22°C — you can still swim!
Ideal for: couples, digital nomads, budget travellers, autumn swims
What is the weather like on Costa Blanca in November and December?
The transition from autumn to early winter — temperatures drop to 14-18°C but remain significantly higher than in northern Europe. November may bring the last gota fria episodes. December is dry and sunny — a Christmas in a t-shirt! Accommodation and flight prices are at their lowest, and Christmas markets and illuminations create a magical atmosphere. It is also the season for fresh oranges and mandarins straight from the tree.
Ideal for: escaping northern winters, retirees, remote work, festive getaways
What is the sea temperature on Costa Blanca and when can you swim?
| Month | Air | Sea | Sun/day | Swimming? |
|---|---|---|---|---|
| January | 16°C | 14°C | 6h | Cold |
| February | 16°C | 13°C | 6h | Cold |
| March | 18°C | 14°C | 7h | For the brave |
| April | 20°C | 16°C | 8h | Cool |
| May | 24°C | 20°C | 10h | Pleasant |
| June | 28°C | 23°C | 11h | Perfect |
| July | 31°C | 25°C | 12h | Perfect |
| August | 32°C | 26°C | 11h | Perfect |
| September | 28°C | 25°C | 9h | Perfect |
| October | 24°C | 22°C | 7h | Pleasant |
| November | 19°C | 18°C | 6h | Cool |
| December | 16°C | 16°C | 5h | Cold |
The swimming season on Costa Blanca runs from May to October — significantly longer than in most of Europe where the sea is warm only in July and August. The warmest water is in September (25°C), not August — that is why many locals consider September the best month for the Costa Blanca beaches.
What is gota fria and is it dangerous?
Gota fria (literally “cold drop”) is an intense weather phenomenon typical of the western Mediterranean. Here is what you need to know:
When does it occur?
- • Mainly September-October
- • Sometimes November
- • Lasts from a few hours to 2-3 days
- • Between episodes — sunshine!
How to prepare?
- • Monitor the AEMET forecast
- • Do not park in dry riverbeds (ramblas)
- • Have a backup plan for rainy days
- • Do not enter the water during an alert
Gota fria should not put you off visiting in autumn. Episodes are short-lived, and between them the weather is often better than a British summer. Prices are low, beaches empty, and the sea still warm.
What to pack for Costa Blanca depending on the season?
| Season | Clothing | Accessories | Notes |
|---|---|---|---|
| Winter (Dec-Feb) | Light jacket, jumpers, long trousers, 1 warmer fleece | Sunglasses, SPF 30 sunscreen | Evenings are cool (8-10°C) |
| Spring (Mar-May) | T-shirts, light trousers, thin jumper for evenings | Sunglasses, SPF 30-50, comfortable hiking shoes | Swimwear from May |
| Summer (Jun-Aug) | T-shirts, shorts, dresses, flip-flops, sandals | SPF 50 sunscreen, hat, water bottle, beach umbrella | Light layer for air-conditioned spaces |
| Autumn (Sep-Nov) | T-shirts, light trousers, waterproof jacket | Swimwear (Sep-Oct), sunglasses, umbrella | Rain jacket for gota fria! |
When is the best time to go to Costa Blanca?
Beach holidays
Best: May-June, September
OK: July-August (hot, crowded)
Possible: October (sea 22°C)
Sightseeing
Best: March-May, October-November
OK: January-February (lowest prices)
Difficult: July-August (too hot)
Start with the Gran Alacant guide
Digital nomads
Best: January-April, October-December
OK: September (warm, cheap)
Expensive: July-August
Low prices, peace, good WiFi, great work climate
Practical weather tips
• Sunscreen all year: The sun on Costa Blanca is strong even in winter — SPF 30 minimum
• Siesta is not a myth: In summer avoid activity 1 pm-5 pm, the hottest hours
• AEMET: Check the forecast at aemet.es — the most accurate for Spain
• Air conditioning: Essential in summer — our Gran Alacant apartment has it!
• Levante wind: A warm westerly wind can raise temperatures by 5-8°C
• Autumn rain: Do not park in dry riverbeds (ramblas) in autumn
• Hydration: In summer drink a minimum of 2-3 litres of water per day
Discover Costa Blanca in every season
Whatever the time of year, Costa Blanca has something to offer. In summer, relax on the best beaches in the region, in spring discover the wild Carabassi Beach without the crowds. All year round, Gran Alacant is an excellent base for exploring the Alicante region.
Rafał Prońko
Właściciel Brisa Alacant
Właściciel apartamentu wakacyjnego Brisa Alacant od 2023 roku, regularnie odwiedzam Costa Blanca i znam region z własnych doświadczeń. Wszystkie miejsca opisane na blogu odwiedziłem osobiście — zdjęcia i porady pochodzą z moich własnych wizyt. Pomagam gościom odkrywać najlepsze atrakcje regionu Alicante.
Frequently Asked Questions
What is the average temperature on Costa Blanca throughout the year?
The average annual temperature on the Costa Blanca is around 18 to 20 degrees Celsius, making this region one of the warmest in all of Europe. During the winter months from December to February, daytime temperatures hover between 15 and 18 degrees Celsius, while night temperatures rarely drop below 5 degrees and frost and snow virtually never occur. Spring brings a gradual warm-up from 18 degrees in March to 25 degrees in May, accompanied by beautiful blooming vegetation. Summer is hot with July and August averaging 30 to 32 degrees in the shade, though thermometers can reach 38 to 40 degrees during heat waves. Autumn is mild and pleasant, with temperatures ranging from 26 degrees in September to 18 degrees in November. The region enjoys over 300 sunny days a year and minimal rainfall, making the Costa Blanca an excellent travel destination throughout the year. For comparison, the average annual temperature in London is just 11 degrees Celsius, more than 8 degrees lower than on the Costa Blanca.
When is the best time to visit Costa Blanca for a holiday?
The best time for a holiday on the Costa Blanca depends on your preferences and what you are looking for during your trip. For beach lovers and sea swimmers the ideal period is from May to October, when the water temperature exceeds 20 degrees Celsius. Peak season falls in July and August with water temperatures of 25 to 26 degrees, but this comes with crowded beaches and higher accommodation and flight prices. The best compromise is May to June or September to October when the water is warm but beaches are much less crowded, and accommodation prices are 30 to 40 percent lower. For sightseeing and active holidays, spring from March to May is ideal, when temperatures are comfortable and do not tire you during hikes, and blooming almond and orange trees create beautiful landscapes. Winter from December to February attracts those seeking an escape from northern European cold, with temperatures of 15 to 18 degrees perfect for walking, cycling and cultural activities at the lowest accommodation prices of the year.
What is gota fria and when does it occur on Costa Blanca?
Gota fria, meaning cold drop, is an intense meteorological phenomenon characteristic of the western Mediterranean coast, including the entire Costa Blanca region. It occurs most frequently from mid-September to the end of October, though it can also appear in November. It forms when cold air masses from the Atlantic meet warm and humid air above the Mediterranean Sea, which has been heated throughout the summer. The result is sudden torrential rain, thunderstorms and strong wind, which can last from several hours to two or three days. During a gota fria event, as much rain can fall in a single day as northern Europe receives in two months, sometimes up to 200 litres per square metre. This phenomenon is a natural part of the Costa Blanca climate and should not deter you from visiting in autumn. Between rainy episodes the weather is often sunny and warm. Simply check the forecast on the official AEMET website and have a backup plan for rainy days, such as a museum visit or a trip to a shopping centre.
When can you swim in the sea on Costa Blanca?
The swimming season on the Costa Blanca lasts significantly longer than in northern Europe, running from May to the end of October, and for those less sensitive to cold even from April to November. The Mediterranean Sea water temperature reaches its minimum in February and March, dropping to around 13 to 14 degrees Celsius. From April the water gradually warms, reaching about 16 to 17 degrees. In May the temperature rises to 20 degrees, which for many people is already sufficient for comfortable swimming. The warmest water comes in August and September at 25 to 26 degrees Celsius, comparable to a hotel pool. October still offers pleasant 22 to 24 degrees, and even in November the water holds at 18 to 19 degrees. It is worth noting that Costa Blanca beaches have gentle sandy entries into the water, and sea currents are much calmer than on the Atlantic coast, making bathing safe and comfortable for adults and families with small children alike. Compared to the North Sea or Baltic, the swimming season here is more than three times longer.
How many sunny days are there on Costa Blanca per year?
The Costa Blanca enjoys over 300 sunny days a year, averaging more than 2,800 hours of sunshine. For comparison, in the United Kingdom this figure is just 1,400 to 1,600 hours per year. Even in the winter months from December to February, the Costa Blanca offers 5 to 6 hours of sunshine per day, while in northern Europe during the same period the sun appears for just 1 to 2 hours. Summer brings 10 to 12 hours of daily sunshine, with sunsets in July and August not occurring until after nine thirty in the evening. Annual rainfall on the Costa Blanca amounts to just 250 to 350 millimetres, while in the UK it reaches 800 to 1,200 millimetres. Rain falls mainly in autumn during the gota fria period and sporadically in winter. From May to September rain is extremely rare. It is precisely these exceptional sunshine conditions that led the World Health Organisation to recognise the Costa Blanca climate as one of the healthiest in the world.
Źródła i odnośniki
- AEMET - Agencia Estatal de Meteorologia: Costa Blanca climate data(dostęp: 2026-04-21)
- Costa Blanca - Official tourism portal of the province of Alicante(dostęp: 2026-04-21)
- Turismo Comunitat Valenciana - Climate and weather of the Valencia region(dostęp: 2026-04-21)
- WHO - World Health Organisation: report on health-friendly climates(dostęp: 2026-04-21)
- Seatemperature.info - Mediterranean Sea water temperature data(dostęp: 2026-04-21)
Plan your stay on Costa Blanca at the perfect time!
Whether you choose sunny May, hot August or peaceful January — our apartment in Gran Alacant is ready for your visit. Air conditioning for summer, heating for winter, 5 minutes to Carabassi Beach and 300+ days of sunshine a year. Check availability for your dates!
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