The Costa Blanca is known as one of the sunniest regions in Europe. With more than 300 days of sunshine each year, mild winters and long, dry summers, it’s an ideal destination for beach lovers, winter residents and anyone who enjoys an outdoor lifestyle. Still, the weather varies significantly from month to month, valuable information when planning a holiday, renting a vacation home or considering a longer stay.
This guide gives you a clear, month-by-month overview of the climate throughout the year, including seasonal trends and practical insights.
Quick Monthly Weather Table
This table gives you an at-a-glance overview of Costa Blanca weather from January through December.
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January
|
12–17°C
|
14°C
|
low
|
high
|
cool but sunny
|
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February
|
13–18°C
|
14°C
|
low
|
high
|
calm, clear days
|
|
March
|
15–20°C
|
15°C
|
low–medium
|
high
|
early spring
|
|
April
|
17–22°C
|
16–17°C
|
medium
|
high
|
pleasant, occasionally unstable
|
|
May
|
20–25°C
|
18–20°C
|
low
|
very high
|
ideal weather
|
|
June
|
24–28°C
|
22–24°C
|
very low
|
very high
|
stable summer weather
|
|
July
|
26–32°C
|
25–27°C
|
very low
|
extremely high
|
warmest period
|
|
August
|
27–33°C
|
26–28°C
|
low
|
extremely high
|
hot, sometimes humid
|
|
September
|
24–29°C
|
25–27°C
|
medium
|
high
|
warm late-summer weather
|
|
October
|
20–26°C
|
22–24°C
|
medium–high
|
high
|
mild with chance of showers
|
|
November
|
16–21°C
|
18–19°C
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medium
|
high
|
mild autumn
|
|
December
|
13–18°C
|
15°C
|
low
|
high
|
sunny and mild
|
The Costa Blanca Climate in Short
The Costa Blanca has a classic Mediterranean climate. Summers are warm and dry, while winters remain mild and comfortable. Unlike many other Mediterranean areas, the Costa Blanca enjoys high levels of sunshine all year thanks to the surrounding mountains and the stable weather patterns over the Mediterranean Sea.
This makes the region ideal for:
- beach holidays from May to October
- winter stays with mild, sunny conditions
- active travellers such as cyclists and hikers
- anyone spending extended periods in Spain
In short: the weather is exceptionally stable and welcoming.
Winter: January to March – Mild Days and Plenty of Sun
Winter on the Costa Blanca is gentle and bright. Daytime temperatures range from 12 to 18 degrees, often accompanied by clear blue skies. Evenings cool down to around 6 to 8 degrees, but rain is rare. This is why so many winter residents choose the region: you can breakfast outdoors, walk along the coast and enjoy quiet beaches without the heat of summer.
The sea, at around 14 to 15 degrees, is too cold for comfortable swimming, but the air quality is pleasant and the sun appears almost daily. For anyone considering a longer stay or looking for a holiday home, this is an excellent season to experience the region the way locals do.
Spring: April to June – The Best Time of the Year
Spring brings the Costa Blanca to life. Temperatures rise to between 17 and 28 degrees depending on the month. April can still be a mix of sun and clouds, but from May onwards the weather is steadily warm, stable and sunny. June already feels like full summer, with sea temperatures climbing to around 24 degrees and evenings that are perfect for a relaxed walk along the promenade.
For many visitors, this is the ideal period:
- warm but not too hot
- less crowded than July and August
- perfect for beaches, cycling, hiking and day trips
- very family-friendly
Nature is at its most vibrant, and outdoor activities feel at their most enjoyable.
Summer: July to September – Hot, Sunny and Perfect for the Beach
Summer on the Costa Blanca is warm and dry. July and August are the hottest months, with temperatures between 26 and 33 degrees, sometimes higher inland. Humidity can rise, making it feel even warmer, but the sea often 25 to 28 degrees, is wonderfully refreshing.
This is the best season for:
- full beach days
- swimming, snorkelling and watersports
- long evenings outdoors
- families planning a classic seaside holiday
September is a favourite month thanks to warm temperatures and fewer crowds. Occasional Mediterranean showers can occur, but the weather usually clears quickly.
Autumn: October to December – Mild Temperatures and Quiet Beaches
Autumn is an unexpectedly lovely season on the Costa Blanca. October offers late-summer warmth with 20 to 26 degrees, and the sea at 22 to 24 degrees, is still perfect for swimming. November is milder, ranging from 16 to 21 degrees. This is when the landscape becomes greener and the scenery softer.
Rain is more common in October and November but still limited overall. December is mild, sunny and appealing for anyone who prefers to spend the holiday season without winter chill.
For travellers considering overwintering or renting a holiday home, these months offer ideal conditions for walking, golfing and a relaxed lifestyle.
Sea Temperatures and Seasonal Activities
- Winter: 14–16°C – too cool for swimming, perfect for coastal walks
- Spring: 17–24°C – swimming becomes comfortable from late May
- Summer: 25–28°C – ideal for snorkelling and watersports
- Autumn: 22–24°C – longer swimming season than in Northern Europe
The swimming season typically runs from May through late October.
What Is the Best Time to Visit?
- For beach holidays: June, July, August, September
- For families: May, June, September
- For active holidays (hiking, cycling): March, April, October, November
- For winter stays: December to March
- For peaceful travel: May, September, October
Each season on the Costa Blanca offers something different — always with generous sunshine and comfortable temperatures.
Weather & Living: Why It Matters
For anyone renting a holiday home or considering owning property on the Costa Blanca, understanding the climate is essential. The stable weather not only makes the region pleasant to live in but also highly attractive for seasonal rentals.
Casa Capitals advises both travellers and homeowners on the best locations, seasonal patterns and rental opportunities. Their insight into climate, neighbourhoods and local amenities helps you make decisions that match your lifestyle — whether you plan to winter here, stay for longer periods or buy a home that remains comfortable all year round.
Conclusion
The weather on the Costa Blanca is one of the main reasons the region is so beloved. From mild winters to warm summer days, and from the beauty of spring to the peacefulness of autumn, every season has its own charm. Temperatures, sunshine hours and sea conditions make the Costa Blanca suitable for beach lovers, active travellers and long-term winter visitors alike.
With a good understanding of the seasonal differences, you can choose the travel period that best suits your plans and preferences.
