Denia has the perfect weather here for every kind of adventure! You can bask in the sunshine on Las Rotas’ hidden coves in summer, hike Montgó’s trails in the cooler months, or explore the bustling marina and traditional fishing port year-round.
Let me share everything you need to know about Denia’s weather to help you plan the best time to visit.
DÉNIA WEATHERJanuary in Denia
January brings lovely mild days in Denia, though you’ll need layers for the evenings. Thanks to the Montgó mountain protecting us from those cold northern winds, winter here is much gentler than you might expect.
- 🌡️ Average high: 17°C (63°F)
- 🌡️ Average low: 7°C (45°F)
- 🌧️ Rainfall: 45mm over 5 days
- 🌊 Sea temperature: 14°C (57°F)
- ☀️ Daily sunshine: 6 hours
This is one of the best times to hike Montgó during the middle of the day – you won’t overheat on the climb and the views are incredible on clear winter days.
While it’s definitely too cold for swimming, you can enjoy beautiful walks along Las Rotas or the main sandy beaches without the summer crowds. The marina is especially lively as this is peak fishing season – head down early morning to see the boats coming in with their catch!
February in Denia
The weather in Denia during February starts warming up slightly, and you’ll get plenty of sunny days. Nights are still cold though, so pack those layers if you’re planning evening walks along the Denia marina.
- 🌡️ Average high: 18°C (64°F)
- 🌡️ Average low: 8°C (46°F)
- 🌧️ Rainfall: 35mm over 4 days
- 🌊 Sea temperature: 14°C (57°F)
- ☀️ Daily sunshine: 7 hours
This is a fantastic time for outdoor activities without the heat. The weather isn’t quite right for swimming in the sea yet, but it’s perfect for exploring the Denia castle, wandering through the Denia old town, or cycling along the seafront.
March in Denia
March brings the first real taste of spring to Denia. The days get noticeably warmer and longer, and the whole area starts coming alive with wildflowers, especially around the Montgó Natural Park.
- 🌡️ Average high: 20°C (68°F)
- 🌡️ Average low: 9°C (48°F)
- 🌧️ Rainfall: 35mm over 4 days
- 🌊 Sea temperature: 15°C (59°F)
- ☀️ Daily sunshine: 8 hours
Perfect temperatures for hiking and exploring! While the sea’s still a bit chilly for swimming, the beaches start getting more pleasant for sunbathing on warmer days. You might catch some spring showers, but they don’t usually last long. The restaurants along the marina start setting up their terraces again – perfect for lunch in the sunshine!
April in Denia
April really feels like spring has properly arrived in Denia! The days are getting warmer and longer with the clocks going forward. April can see occasional rainfall, sometimes a ‘gota fria’ which is an intense amount of rainfall within a few days. These showers keep Montgó looking beautifully green and the wildflowers blooming.
- 🌡️ Average high: 22°C (72°F)
- 🌡️ Average low: 11°C (52°F)
- 🌧️ Rainfall: 40mm over 4 days
- 🌊 Sea temperature: 16°C (61°F)
- ☀️ Daily sunshine: 9 hours
The weather’s perfect for exploring everything Denia has to offer. Brave swimmers might try the sea on warmer days, but most still find it a bit too cold.
May in Denia
May brings what I think is perfect weather to Denia – warm but not too hot! The days are consistently sunny, and you’ll start seeing more people heading to the beaches in Denia.
- 🌡️ Average high: 25°C (77°F)
- 🌡️ Average low: 14°C (57°F)
- 🌧️ Rainfall: 35mm over 4 days
- 🌊 Sea temperature: 18°C (64°F)
- ☀️ Daily sunshine: 10 hours
It’s a fantastic time for water sports such as padel boarding at the main beaches, or exploring the rocky coves of Las Rotas. The weather’s also perfect for hiking Montgó – warm enough to work up a sweat but still not too hot.
The evening atmosphere in the old town is lovely, with restaurants spilling onto the streets.
June in Denia
June weather in Denia brings consistently warm, sunny days and the real start of summer season. The town starts getting busier, but it’s not at peak summer crowds yet.
- 🌡️ Average high: 28°C (82°F)
- 🌡️ Average low: 18°C (64°F)
- 🌧️ Rainfall: 15mm over 2 days
- 🌊 Sea temperature: 21°C (70°F)
- ☀️ Daily sunshine: 11 hours
The sea’s finally warm enough for proper swimming, and all the beach facilities are open. If you’re planning to hike Montgó, go early morning before it gets too hot! Evening drinks on the marina terraces are particularly lovely, I’d recommend checking out Zensa in particular.
July in Denia
Peak summer hits Denia! July brings hot, sunny days and warm nights – classic Mediterranean summer weather. The nearby beaches will be packed during the day, and the town irself has a real buzz at all hours.
- 🌡️ Average high: 31°C (88°F)
- 🌡️ Average low: 21°C (70°F)
- 🌧️ Rainfall: 5mm over 1 day
- 🌊 Sea temperature: 24°C (75°F)
- ☀️ Daily sunshine: 12 hours
The beaches are at their busiest and the sea is beautifully warm. Early morning or evening is best for any walking or sightseeing – avoid hiking Montgó in the midday heat!
The evening promenade along the marina comes alive with people enjoying the cooler temperatures, the beach bars are in full swing, and the Denia nightlife becomes a lot more lively.
August in Denia
August is Denia’s hottest month. The town is buzzing with summer energy, the beaches are packed, and everything stays open late into the evening.
- 🌡️ Average high: 31°C (88°F)
- 🌡️ Average low: 22°C (72°F)
- 🌧️ Rainfall: 20mm over 2 days
- 🌊 Sea temperature: 25°C (77°F)
- ☀️ Daily sunshine: 11 hours
Beach life is in full swing with perfect sea temperatures for swimming. The Las Rotas coves are particularly popular now as people seek out quieter spots.
Plan your day carefully – morning for the market, beach time during the day, and evenings for exploring the castle and old town.
September in Denia
September’s often the locals’ favorite month. You still get beautiful summer weather but with fewer crowds, and the sea stays lovely and warm.
- 🌡️ Average high: 28°C (82°F)
- 🌡️ Average low: 19°C (66°F)
- 🌧️ Rainfall: 70mm over 4 days
- 🌊 Sea temperature: 24°C (75°F)
- ☀️ Daily sunshine: 9 hours
You might catch the odd September storm, but they pass quickly. The beaches are still perfect for swimming and sunbathing! Restaurant terraces are still busy but more relaxed, and you can easily get tables at the popular spots.
October in Denia
October brings cooler autumn weather to Denia, with warm days and crisper evenings. The tourist crowds have mostly gone, but the weather’s still fantastic for outdoor activities.
- 🌡️ Average high: 24°C (75°F)
- 🌡️ Average low: 15°C (59°F)
- 🌧️ Rainfall: 70mm over 5 days
- 🌊 Sea temperature: 21°C (70°F)
- ☀️ Daily sunshine: 7 hours
The sea’s still warm enough for swimming on sunny days – thanks, summer heat!
This is one of the best months for hiking both Montgó. You might catch some autumn rain, but it rarely lasts long.
November in Denia
November sees the Spanish winter approaching, though it’s still mild compared to northern Europe. Days can be beautifully sunny and perfect for exploring, while evenings get noticeably cooler.
- 🌡️ Average high: 20°C (68°F)
- 🌡️ Average low: 11°C (52°F)
- 🌧️ Rainfall: 55mm over 4 days
- 🌊 Sea temperature: 18°C (64°F)
- ☀️ Daily sunshine: 6 hours
While beach swimming is just for the brave now, it’s perfect weather for exploring the town or hiking. The marina is particularly interesting as the winter fishing season begins. You’ll need layers for morning and evening, but midday can still be t-shirt weather.
December in Denia
December in Denia is mild and often sunny, making it a perfect escape from colder northern climates. While it’s definitely winter, you’ll still get plenty of bright, clear days.
- 🌡️ Average high: 17°C (63°F)
- 🌡️ Average low: 8°C (46°F)
- 🌧️ Rainfall: 45mm over 4 days
- 🌊 Sea temperature: 15°C (59°F)
- ☀️ Daily sunshine: 5 hours
This is a wonderful time to explore Denia’s cultural side – the castle and old town are peaceful and atmospheric, and you can often have the hiking trails almost to yourself. While too cold for swimming, the beaches are perfect for winter walks, especially along Las Rotas. The Christmas period brings a festive atmosphere to the town, with seasonal markets adding extra charm to the shopping streets.
Best time to visit Denia
If you’re after beach weather but want to avoid the peak crowds and prices, I’d recommend:
- Late May to early June
- September to early October
These months give you perfect weather for both beach days and exploring, without the intense summer heat and crowds.
What to Pack
Summer (June-August):
- Light, breathable clothing
- Multiple swimsuits
- High SPF sunscreen
- Sun hat and sunglasses
- Light evening layer
Spring/Autumn (Mar-May, Sep-Nov):
- Light layers
- Light jacket for evenings
- Swimwear (for warmer days)
- Comfortable walking shoes
- Light raincoat
