The Costa Blanca, located on Spain’s eastern Mediterranean coast, is one of the most popular holiday destinations in Europe, renowned for its stunning beaches, picturesque towns, and sunny climate. It stretches across Alicante and parts of Valencia and Murcia, offering visitors a pleasant Mediterranean climate with hot summers and mild winters. Whether you’re planning a summer getaway, a winter retreat, or simply curious about the region’s climate, understanding the average temperatures throughout the year, including the sea temperatures, is essential.
In this article, we’ll break down the average temperatures of the Costa Blanca by month, including the sea temperatures, to give you a clearer picture of what to expect during your visit.
January – A Mild Winter
January is one of the coldest months of the year on the Costa Blanca, but compared to much of Europe, it remains relatively mild. With average temperatures ranging from 10°C (50°F) at night to 17°C (63°F) during the day, the weather is quite comfortable for outdoor activities, though a bit chilly for swimming.
The sea temperature in January hovers around 15°C (59°F), which is too cold for most people to enjoy a long swim but is perfect for braving the chill for a brief dip or simply enjoying the beach atmosphere.
The region experiences minimal rainfall in January, with occasional showers. However, long stretches of sunshine are common, making it a great time to explore the coastal towns and enjoy nature walks. While it’s not beach weather, the mild winter is perfect for sightseeing, hiking in the mountains, or exploring the charming towns like Altea, Javea, or Denia.
February – Cool and Breezy
In February, temperatures remain similar to January but with slightly more variation. Daytime highs average around 17°C (63°F), while nighttime temperatures dip to around 9°C (48°F). Although the region remains relatively cool, the days are longer, and the likelihood of rain is low, making it a wonderful time to visit for those who enjoy mild weather without the summer crowds.
The sea temperature in February stays around 15°C (59°F), still too cold for most people to swim comfortably, though it can be a good time for brisk walks along the coast.
While it’s still too cold for beach swimming, it’s an ideal time for visitors to enjoy activities like hiking or visiting the historical sites of Alicante or Elche, which has one of Europe’s oldest palm groves. February is also the time for Carnival celebrations in many towns, so those interested in culture and festivals will find plenty to enjoy.
March – Spring Begins
By March, spring begins to make its presence felt on the Costa Blanca. Daytime temperatures rise to around 19°C (66°F), and nighttime temperatures are more comfortable at about 10°C (50°F). This month is a lovely time to visit as the weather is pleasant without being overly hot. You’ll experience more sunshine, though occasional rainfall is still possible.
The sea temperature begins to warm up slightly in March, averaging 16°C (61°F). While still on the cooler side, it’s more comfortable for those looking to brave the sea for a short swim, especially if you’re used to cooler waters.
March is an excellent month for outdoor activities like cycling, hiking, and visiting the towns and beaches. This is also the start of the Las Fallas festival in Valencia, which attracts many tourists to the region. The Costa Blanca is a great base for those who want to experience the vibrant celebrations, but prefer to stay away from the larger crowds in the city.
April – Warming Up
April marks the start of warmer spring days. Average temperatures during the day reach about 21°C (70°F), and nights remain cool at around 12°C (54°F). Rainfall is minimal, and sunshine predominates, although you may still experience a few passing showers.
The sea temperature in April rises to about 17°C (63°F), which is still cool for some, but many may find it refreshing enough for a swim, particularly on warmer days.
April is a great time to enjoy the outdoors. Whether you’re spending time on the beach, exploring nature reserves, or visiting historical monuments, the pleasant temperatures make it an ideal time for most activities. Semana Santa (Holy Week) is a significant celebration in many Costa Blanca towns, especially in Orihuela and Alicante, where religious processions and festivals take place.
May – The Start of Beach Season
May is the official start of the high season on the Costa Blanca, with the weather becoming much warmer. Daytime temperatures average around 24°C (75°F), and nights are comfortably cool at 15°C (59°F). The sun shines almost every day, and the likelihood of rainfall is low.
The sea temperature in May rises to around 19°C (66°F), making it more inviting for swimming, especially for those who prefer slightly cooler waters. It’s an excellent time for a dip in the Mediterranean or to engage in water sports such as paddleboarding, jet-skiing, or sailing.
May is an excellent month for those who love the beach, as the water temperatures are starting to rise, and the summer crowds have yet to arrive. It’s a great time for swimming, enjoying water sports, and relaxing on the stunning beaches of Benidorm, Torrevieja, or Calpe.
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♬ Runaround Sue – Dion
The warmer weather also makes it a perfect time for outdoor exploration, such as hiking in the Sierra Helada Natural Park or visiting the ancient castle of Santa Barbara in Alicante.
June – Summer Begins
By June, the summer heat begins to settle in. Daytime temperatures average around 28°C (82°F), with highs reaching up to 30°C (86°F) or more, while the nights are warm at around 18°C (64°F). The weather is dry, and rain is a rare occurrence.
The sea temperature in June is approximately 22°C (72°F), which is perfect for swimming and enjoying the Mediterranean Sea. It’s warm enough for water activities, but not yet too hot to be uncomfortable. The beaches are busy, and the atmosphere is vibrant, especially in towns like Benidorm, where you can take part in various beach activities.
This is the beginning of the peak tourist season, and it’s perfect for those who love hot weather, sunbathing, and outdoor activities. Beaches and resorts start filling up, and the Costa Blanca offers an array of water sports like windsurfing, jet-skiing, and scuba diving. Nightlife also picks up, especially in touristy spots like Benidorm, where the streets are alive with music and entertainment.
July – Hot Summer Days
July is one of the hottest months on the Costa Blanca, with average daytime temperatures soaring to around 32°C (90°F). In some areas, it can even exceed 35°C (95°F) during heatwaves. Nights remain warm at about 22°C (72°F), making for pleasant evenings.
The sea temperature in July is typically around 25°C (77°F), making it an ideal time for swimming, relaxing by the sea, or enjoying water sports like sailing and snorkeling.
This is the height of the summer, and visitors flock to the coast for beach vacations. With the sun shining relentlessly, it’s ideal for sunbathing, swimming, and enjoying the vibrant beach culture. However, for those who prefer to avoid the intense heat, early mornings and late evenings are the best times to explore the area.
August – Peak Summer Heat
August is the hottest month on the Costa Blanca, with daytime highs often reaching 34°C (93°F) or higher, and nighttime lows around 24°C (75°F). The heat can be quite intense, and the region experiences little to no rainfall.
The sea temperature in August is at its warmest, around 26°C (79°F), providing ideal conditions for long swims, relaxing on the beach, or participating in water sports.
During this month, the beaches are crowded, and coastal towns are bustling with tourists. If you’re not a fan of high heat, it’s best to plan your activities around early mornings or after sunset. However, if you enjoy the summer heat, this is the best time to fully experience the lively atmosphere of the region, with beach parties, festivals, and outdoor events taking place.
September – A Slight Cool Down
September sees a slight cooling trend, with daytime temperatures averaging around 30°C (86°F), and nights cooling to about 20°C (68°F). The humidity levels may still be high, but it’s a great time to visit for those who want to enjoy beach activities without the intense summer crowds.
The sea temperature in September remains warm, around 25°C (77°F), which is perfect for swimming and enjoying water activities.
Many of the local beach clubs host end-of-summer parties, and the region also sees various cultural events, including concerts and food festivals.
October – Fall Comfort
October brings a refreshing change in weather, with daytime temperatures averaging around 24°C (75°F), and nights cooling to around 15°C (59°F). It’s a wonderful time to visit if you prefer mild weather without the heat of summer. Rainfall increases slightly in October, but it’s still a great time to explore the outdoors and enjoy the beaches.
The sea temperature in October is about 22°C (72°F), which remains pleasant enough for swimming, making it an ideal time for water sports without the summer crowds.
This is the time when the Costa Blanca’s towns begin to slow down from the summer crowds, and the region becomes a great place for more relaxed, cultural experiences. It’s also the perfect time for hiking and exploring inland areas like Guadalest or the Marina Alta.
November – A Pleasant Fall
In November, the temperature begins to drop further, with daytime highs averaging around 19°C (66°F) and nighttime lows around 11°C (52°F). The weather remains relatively dry, with fewer rainy days than in other parts of Spain.
The sea temperature in November drops to around 18°C (64°F). While it’s still possible to swim, the cooler temperatures might not appeal to everyone, though it’s great for those looking for a more peaceful, off-season beach experience.
November is one of the best times to visit for those who want to avoid the summer crowds and enjoy comfortable temperatures. It’s still warm enough for beach walks and outdoor activities, and the crisp air is perfect for hiking or exploring the charming towns and historic sites of the region.
December – Mild Winter
In December, the Costa Blanca enjoys mild winter weather, with daytime temperatures averaging around 15°C (59°F), and nights dropping to 8°C (46°F). This makes it a popular destination for winter sunseekers looking to escape the colder climates of northern Europe.
The sea temperature in December hovers around 16°C (61°F), which is too cold for long swims but still possible for a brief dip, especially for those accustomed to cooler water.
With fewer tourists, December is an ideal time to visit for a more peaceful experience. The holiday season brings festive events, Christmas markets, and holiday lights to towns like Alicante and Benidorm.
Conclusion
The Costa Blanca offers a delightful climate year-round, with each month bringing its own unique weather patterns. Whether you’re visiting in the summer for the beaches and vibrant nightlife or in the winter for the mild weather and cultural experiences, there’s no wrong time to visit. With this monthly breakdown, including sea temperatures, you can plan your visit to align with your preferences and enjoy the best that this beautiful region has to offer.
