All data are in degrees Fahrenheit

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Water temperature in Sperlonga

Detailed information about the current water temperature in Sperlonga. The trend over the last two weeks, daily averages, and precise forecast of the water temperature changes. Gain a deeper understanding of seasonal dynamics with monthly statistical analyses covering recent years.
Sea temperature in Sperlonga now

79.9

°F

September 20, 03:24

Trend:

stable

Yesterday:

79.9°F

Tomorrow:

79.8°F

Sunrise:

06:51

Sunset:

19:08

Day Length:

12 h. 17 min.

Sperlonga in September

Minimum:

59.3°F

Average:

60.0°F

Maximum:

60.8°F

Sea water temperature in Sperlonga today

As of now, in Sperlonga, the water temperature is 79.9°F. It's safe to say that the water is comfortably warm for various water-related activities. Today's reading is 3.5°F higher than the average recorded on this particular day in recent years. The sea temperature remains approximately unchanged from yesterday. According to the forecast, we expect the temperature to stay about the same.

Recent sea temperature and forecast

Today's water temperature is considerably lower than the average registered over the last two weeks, indicating a slight cooling trend. It is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 78.0°F on 2025, while the historical minimum was 73.4°F on 2024.

Observations from the last two weeks indicate that the water temperature was in proximity to the highest values recorded on those days in the past. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 79.3°F, the minimum temperature may reach 78.7°F, and the maximum might stay at 79.8°F.

Daily water temperature in Sperlonga

Date Current Year

actual* / forecast**

last year 10 years average
Sep 6 83.5°F 78.0°F 78.6°F
Sep 7 83.2°F 78.3°F 78.6°F
Sep 8 83.3°F 77.8°F 78.5°F
Sep 9 83.0°F 78.3°F 78.4°F
Sep 10 83.0°F 77.9°F 78.4°F
Sep 11 82.6°F 77.7°F 78.2°F
Sep 12 82.0°F 77.6°F 78.0°F
Sep 13 81.6°F 77.7°F 78.0°F
Sep 14 81.6°F 77.8°F 77.8°F
Sep 15 81.1°F 77.7°F 77.6°F
Sep 16 80.4°F 78.3°F 77.4°F
Sep 17 80.1°F 77.8°F 77.1°F
Sep 18 80.0°F 77.9°F 76.9°F
Sep 19 79.9°F 77.6°F 76.3°F
Sep 20 79.9°F 78.0°F 76.3°F
Sep 21 79.8°F 77.8°F 76.2°F
Sep 22 79.6°F 77.8°F 76.0°F
Sep 23 79.4°F 77.5°F 75.9°F
Sep 24 79.3°F 77.3°F 75.8°F
Sep 25 79.3°F 77.0°F 75.7°F
Sep 26 79.0°F 76.7°F 75.5°F
Sep 27 78.7°F 76.3°F 75.2°F

* actual - actual temperature values

** forecast - projected values for the next week

Real-time coastal temperatures could deviate by several degrees from the provided readings. These deviations often become evident following intense rainfall or strong winds.

Our forecasting methodology leverages a mathematical model, that uses current water and weather conditions, historical records, wind intensity and direction.

Sea water temperature in Sperlonga by month

In Sperlonga, the months July through September offer comfortable swimming conditions, which amounts to 113 swimming days.
The warmest water in Sperlonga was recorded on August 5, 2026, reaching a 85.8°F. While the coldest temperature occurred on March 9, 2018, dipping to 55.8°F. The average readings by season are 59.8°F in Winter, 61.2°F in Spring, 77.5°F in Summer, and 72.2°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Formia 79.9°F 9mi
Sabaudia 79.3°F 21mi
Forio 80.4°F 42mi
Porto 80.0°F 52mi
Naples 80.0°F 52mi
Capri 80.0°F 65mi
Massa Lubrense 79.7°F 66mi

* current water temperature in this city

** straight line distance from Sperlonga