Measurements:
°C
°F
Islantilla
56°F
NE 2 mph
Feels like: 58°F
Precip: 100%
World Resorts Spain Islantilla Weather

Islantilla Sea Water Temperature

Current Sea Water Temperature:
+62.4°F
Maximum Sea Water Temperature in December: 66.0°F
Minimum Sea Water Temperature in December: 58.4°F
Average water temperature in December: 62.4°F

Sea Water Temperature for the Last 10 Days:

December 04 62.4°F November 29 63.4°F
December 03 62.6°F November 28 63.8°F
December 02 62.6°F November 27 64.6°F
December 01 63.2°F November 26 64.6°F
November 30 63.4°F November 25 64.6°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: 2025 2024 2023

The average sea surface temperature in July 2025 for Islantilla was 74.6°F. The maximum and minimum values were 64.4°F and 81.8°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:
July 31 days
August 30 days
June 25 days
The most warm months:
July 91.3 °F
August 90.7 °F
June 84.0 °F
Warmest sea temperature:
August 74.6 °F
July 73.8 °F
September 71.9 °F
The most cold months:
January 60.6 °F
December 62.7 °F
February 63.6 °F
The most rainy months:
March 2 days
November 2 days
December 2 days
The most windy months:
March 9 mph
June 9 mph
April 9 mph

Islantilla on the Weather Map

24 Hours Weather Forecast
Islantilla
Local time: 06:15
05 dec, friday
0900 58°F
E
6 mph
1200 62°F
E
9 mph
1500 68°F
E
10 mph
1800 64°F
S
4 mph
2100 62°F
E
7 mph
06 dec, saturday
0000 58°F
SE
6 mph
0300 58°F
S
5 mph
0600 56°F
S
6 mph