Denia Weather in September
September in Denia sees daytime temperatures around 27°C (81°F) and lows of 22°C (72°F) at night. As the wettest month of the year, keep in mind that rainfall is at its highest.
Rainfall in Denia in September
This month sees the most rain, so carrying an umbrella will ensure you stay dry. Based on our climate data of the past 30 years, about 6 days of rain are anticipated, with 80 mm (3.1 in) on average. Although rain is not especially frequent, individual showers can still be quite heavy.
Temperature in Denia in September
If you're visiting Denia in September, expect excellent temperatures with highs of 27°C (81°F) and overnight lows of 22°C (72°F). September marks the summer season. The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. At 22°C (72°F) overnight, nights are warm enough to sit outside comfortably in light clothing.
Average water temperature in September
The water is 25°C (77°F) this month, warm enough that getting in requires no effort at all. Good conditions for swimming, snorkeling, or just floating around.If you're a fan of comfortable temperatures and drier conditions, September is a great time to visit.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Spain, check out our Denia's climate page.
Denia Temperature in September
Min Temperature
22°C (72°F)
Max Temperature
27°C (81°F)
Water Temperature
25°C (77°F) *
Chance of Rain
20%
Precipitation
80 mm (3.1 in)
Rainy days
6 days
Daily Historical Temperatures
47-year average (1976-2025)
Based on our historical records, temperatures in Denia typically drop from around 27°C (81°F) at the start of September to approximately 24°C (75°F) by the end. Nights are pleasant, with lows typically ranging from 17°C (63°F) to 21°C (70°F).
Average temperatures in September
Daily Historical Precipitation
47-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather for Denia in September
Browse day-by-day weather records for Denia spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Denia historical weather extremes in September
According to our 20 years of weather records for Denia, the following extremes were recorded between 2005 and 2025.
- Denia recorded its highest September temperature of 37°C (99°F) on September 5, 2016.
- Denia experienced its chilliest September day on September 7, 2005, reaching only 19°C (66°F).
- The lowest overnight temperature recorded in September was 10°C (50°F) (September 29, 2020).
Best Places in Spain in September
Find out more about the weather in Spain and which places have the best travel conditions in this month. See all of Spain in September →
perfect weather
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What to Wear in Denia in September
Warm temperatures in September make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Rain gear is recommended, you can expect wet weather on multiple days. With water temperatures around 25°C (77°F), swimming conditions are excellent. Pack your swimsuit, goggles, and maybe some water shoes.What To Do in Denia in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Spain, check out our Denia's climate page.
Temperature Rainfall Water Temp
See the full Denia climate overview or explore weather in Spain.
