Key Takeaways
- ✓ May–June and September are the sweet spots — warm seas, fewer crowds, lower prices.
- ✓ 300+ days of sunshine per year — even winter averages 5–6 hours of sun daily.
- ✓ Peak season (Jul–Aug) means 35°C+, full beaches and top prices.
- ✓ Winter (Nov–Mar) is ideal for long stays, golf and hiking at 40–60% lower rates.
- ✓ Sea temperatures range from 14°C in February to 28°C in August.
Spring (March – May)
Spring is when the Costa Blanca shakes off its quiet winter rhythm and starts to feel like the Mediterranean paradise people imagine. March can still be unpredictable — daytime temperatures hover around 18–20°C with the occasional cool day and a chance of rain — but by April the coast is reliably sunny, warm and gorgeous. May is arguably the single best month on the entire coast: temperatures sit between 22°C and 26°C, the sea warms to a swimmable 19–21°C, and the landscape is green and fragrant with orange blossom, bougainvillea and wild herbs.
The beaches in spring are blissfully uncrowded. You can park at Playa de la Mata or Playa del Cura without circling for 30 minutes, lay your towel on the sand with metres of space in every direction, and swim without dodging inflatable flamingos. Restaurants are open but not frantic, and you can walk into most without a reservation. Rental prices in May are typically 30–40% lower than July and August, making it the best value-for-money month on the coast.
Spring is also the ideal season for active holidays. Hiking in the Sierra de Callosa, cycling through the orange groves between Guardamar and Rojales, and playing golf on the Orihuela Costa courses are all perfect in 22°C sunshine. The Via Verde greenway, which follows an old railway line from Torrevieja to Crevillente, is spectacular in April when the almond trees are still in flower.
What to pack: Light layers for March, T-shirts and a light jacket for April and May. You will need sunscreen from April onwards — the UV is deceptively strong even before the heat arrives.
Summer (June – August)
Summer is high season on the Costa Blanca and for good reason — the weather is guaranteed, the sea is bath-warm, and the coast comes alive with festivals, night markets and outdoor dining until midnight. June is the transition month: temperatures climb from 26°C to 30°C, the sea reaches a comfortable 22–24°C, and you get long summer evenings without the extreme heat or crowds that arrive in July.
July and August are hot — consistently 30–35°C, peaking at 38–40°C during occasional heatwaves from the Sahara. The sea reaches its peak at 26–28°C and stays warm well into the evening, which means night swimming becomes one of the great pleasures of the coast. The beaches are at capacity, particularly the main town beaches in Torrevieja, Benidorm and Calpe.
Rental prices peak in the last two weeks of July and the first two weeks of August. A two-bedroom apartment that costs €600 per week in May can easily reach €1,200–€1,500 in the first week of August. If you are set on a summer visit, early June or the last week of August are noticeably cheaper and less crowded than the core peak.
The upside of summer is the cultural calendar. The Hogueras de San Juan bonfires on 23 June, the Torrevieja Habaneras choral festival in late July, and dozens of local village fiestas create an atmosphere that simply does not exist in other seasons.
Autumn (September – November)
September is the Costa Blanca’s other sweet spot — and many long-term residents consider it the best month of the year. Air temperatures drop to a comfortable 27–30°C, but the sea retains its summer warmth at 24–26°C. The summer crowds vanish almost overnight once Spanish schools reopen on 8 September, and the beaches, restaurants and roads feel immediately more relaxed.
October is a beautiful transition month. Temperatures sit around 22–25°C, the sea cools gradually to 21–22°C (still very swimmable for most people), and the light softens into that golden Mediterranean quality that photographers love. Rental prices drop to shoulder-season levels, typically 25–35% below peak.
November is the one month that requires a word of caution. The Costa Blanca’s annual rainfall — modest at around 280mm — is concentrated heavily in October and November. The phenomenon known locally as gota fría (cold drop, now officially called DANA) can bring intense, short-lived storms with heavy rain. These events are dramatic but usually last only a day or two, and the sun returns quickly afterwards.
Winter (December – February)
Winter on the Costa Blanca is Spain’s best-kept secret for northern Europeans escaping the cold and dark. Daytime temperatures average 15–18°C — cool enough for a light jacket but warm enough to sit outside for lunch in the sun most days. Frost is extremely rare along the coast and snow is virtually unheard of. The World Health Organisation has classified Torrevieja’s microclimate as one of the healthiest in the world.
The big draw is the sunshine — an average of 5–6 hours per day even in December and January, compared to 1–2 hours in London, Stockholm or Helsinki. That daily dose of vitamin D makes an enormous difference to wellbeing, which is why the Costa Blanca has become one of Europe’s most popular long-stay winter destinations.
Winter is golf season. The courses on the Orihuela Costa — Villamartín, Las Ramblas, Campoamor — are in perfect condition, tee times are easy to book, and the temperature is ideal for 18 holes. Rental prices hit their lowest point from November to March (excluding Christmas fortnight). Long-stay visitors booking three months or more can find well-equipped two-bedroom apartments from €450–€650 per month.
Our Verdict
There is no bad time to visit the Costa Blanca — it genuinely delivers year-round. But if we had to pick: May, June and September offer the best combination of weather, value and space. For long stays, November through March is unbeatable value with mild, sunny weather. Peak summer (July–August) is ideal if you want guaranteed heat, warm seas and vibrant nightlife — just be prepared for crowds and premium pricing.