Measurements:
°C
°F
Islantilla
68°F
N 6 mph
Feels like: 68°F
Precip: 32%
World Resorts Spain Islantilla Weather

Islantilla Sea Water Temperature

Current Sea Water Temperature:
+76.4°F
Maximum Sea Water Temperature in September: 78.6°F
Minimum Sea Water Temperature in September: 63.0°F
Average water temperature in September: 72.4°F

Sea Water Temperature for the Last 10 Days:

September 28 76.4°F September 23 78.6°F
September 27 78.0°F September 22 77.8°F
September 26 78.0°F September 21 77.8°F
September 25 78.0°F September 20 77.2°F
September 24 78.6°F September 19 76.0°F

When is the Warmest Sea for Islantilla?

According to our data for the last three years for Islantilla the highest average sea water temperature was in August, July and September.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2026 2025 2024

The average sea surface temperature in August 2026 for Islantilla was 72.8°F. The maximum and minimum values were 68.8°F and 76.2°F respectively.

Sea Water Temperature in July

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Islantilla was 74.9°F. The maximum and minimum values were 67.4°F and 82.0°F respectively.

Sea Water Temperature in September

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Islantilla was 75.6°F. The maximum and minimum values were 68.0°F and 78.6°F respectively.

Best Time to Visit Islantilla
The most sunny months:
August 30 days
July 30 days
June 25 days
The most warm months:
July 91.1 °F
August 90.4 °F
September 84.9 °F
Warmest sea temperature:
August 74.3 °F
July 74.0 °F
September 72.5 °F
The most cold months:
January 60.0 °F
December 61.9 °F
February 63.5 °F
The most rainy months:
December 2 days
November 2 days
March 1 day
The most windy months:
March 9 mph
June 9 mph
January 9 mph

Islantilla on the Weather Map

24 Hours Weather Forecast
Islantilla
Local time: 01:54
29 sep, tuesday
0300 68°F
N
6 mph
0600 68°F
NW
5 mph
0900 74°F
NW
8 mph
1200 82°F
NW
11 mph
1500 84°F
N
12 mph
1800 82°F
NE
11 mph
2100 72°F
NE
6 mph
30 sep, wednesday
0000 70°F
NE
3 mph