What is the current water temperature in Lisbon?

Q: What is the current water temperature in Lisbon?

As of now, in Lisbon, the water temperature is 14.73°C. Swimming in water of this temperature is considered as extremely cold, and there's a substantial risk of hypothermia if exposed for more than a brief duration.

Portugal > Lisbon

Water temperature in Lisbon

Detailed information about the current water temperature in Lisbon. 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.

58.5

°F

December 21, 20:56

Trend:

increasing

Yesterday:

58.5°F

Tomorrow:

58.6°F

Sunrise:

07:51

Sunset:

17:18

Day Length:

9 h. 27 min.

Lisbon in December

Minimum:

56.3°F

Average:

58.2°F

Maximum:

60.3°F

Sea water temperature in Lisbon today

As of now, in Lisbon, the water temperature is 58.5°F. Swimming in water of this temperature is considered as extremely cold, and there's a substantial risk of hypothermia if exposed for more than a brief duration. Today's reading is 0.5°F lower 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 slightly lower than the average registered over the last two weeks, indicating a slight cooling trend. It also aligns closely with the historical average temperature for this date, indicating a typical climate pattern. The maximum temperature recorded for this date was 61.4°F on 2015, while the historical minimum was 56.6°F on 2024.

latest data

last year

Over the past two weeks, the water temperature has closely aligned with historical averages for those days. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 58.4°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Lisbon

Date	Current Year actual* / forecast**	last year	10 years average
Dec 7	59.0°F	61.9°F	59.4°F
Dec 8	59.4°F	61.7°F	59.5°F
Dec 9	59.5°F	60.7°F	59.6°F
Dec 10	59.3°F	59.5°F	59.5°F
Dec 11	59.5°F	58.9°F	59.5°F
Dec 12	59.6°F	58.7°F	59.5°F
Dec 13	59.6°F	58.9°F	59.5°F
Dec 14	59.0°F	59.0°F	59.5°F
Dec 15	59.0°F	59.1°F	59.5°F
Dec 16	59.0°F	59.5°F	59.5°F
Dec 17	58.7°F	59.4°F	59.3°F
Dec 18	58.6°F	59.4°F	59.3°F
Dec 19	58.7°F	59.4°F	59.3°F
Dec 20	58.5°F	58.4°F	59.2°F
Dec 21	58.5°F	56.6°F	59.0°F
Dec 22	58.6°F	57.6°F	59.1°F
Dec 23	58.5°F	56.7°F	59.0°F
Dec 24	58.5°F	57.3°F	59.0°F
Dec 25	58.5°F	56.8°F	59.0°F
Dec 26	58.4°F	57.2°F	58.8°F
Dec 27	58.1°F	57.2°F	58.6°F
Dec 28	58.3°F	57.6°F	58.8°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 Lisbon by month

In an average year, Lisbon offers no days when the water temperature is warm enough to swim comfortably.

The warmest water in Lisbon was recorded on August 26, 2023, reaching a 75.5°F. While the coldest temperature occurred on February 4, 2023, dipping to 54.5°F. The average readings by season are 58.0°F in Winter, 61.0°F in Spring, 68.3°F in Summer, and 65.1°F in Autumn.