Measurements:
°C
°F
Islantilla
90°F
N 2 mph
Feels like: 90°F
Precip: 1%
World Resorts Spain Islantilla Weather

Islantilla Sea Water Temperature

Current Sea Water Temperature:
+72.0°F
Maximum Sea Water Temperature in July: 82.0°F
Minimum Sea Water Temperature in July: 62.0°F
Average water temperature in July: 74.0°F

Sea Water Temperature for the Last 10 Days:

July 30 72.0°F July 25 69.2°F
July 29 71.0°F July 24 68.4°F
July 28 68.4°F July 23 69.8°F
July 27 67.4°F July 22 72.2°F
July 26 67.8°F July 21 71.6°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: 2025 2024 2023

The average sea surface temperature in August 2025 for Islantilla was 77.4°F. The maximum and minimum values were 70.4°F and 81.6°F respectively.

Sea Water Temperature in July

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Islantilla was 75.0°F. The maximum and minimum values were 67.4°F and 82.0°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Islantilla was 68.8°F. The maximum and minimum values were 64.8°F and 73.8°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 90.7 °F
June 84.2 °F
Warmest sea temperature:
August 74.6 °F
July 74.0 °F
September 71.9 °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: 11:00
30 jul, thursday
1200 90°F
N
2 mph
1500 92°F
NE
11 mph
1800 92°F
NE
12 mph
2100 86°F
SE
14 mph
31 jul, friday
0000 78°F
SE
15 mph
0300 74°F
SE
12 mph
0600 70°F
S
12 mph
0900 78°F
S
14 mph