All data are in degrees Fahrenheit

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Water temperature in West Haven

Detailed information about the current water temperature in West Haven. 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 West Haven now

37.7

°F

January 8, 07:30

Trend:

decreasing

Yesterday:

38.0°F

Tomorrow:

37.2°F

Sunrise:

07:18

Sunset:

16:40

Day Length:

9 h. 22 min.

West Haven in January

Minimum:

39.1°F

Average:

42.4°F

Maximum:

48.5°F

Sea water temperature in West Haven today

As of now, in West Haven, the water temperature is 37.7°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 4.1°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 fall a bit.

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 minimum temperature for this date. The maximum temperature recorded for this date was 45.0°F on 2016, while the historical minimum was 37.7°F on 2018.

Observations from the last two weeks indicate that the water temperature was in proximity to the lowest 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 36.6°F, the minimum temperature may reach 35.9°F, and the maximum might stay at 37.2°F.

Daily water temperature in West Haven

Date Current Year

actual* / forecast**

last year 10 years average
Jan 1 39.1°F 40.9°F 42.4°F
Jan 2 38.2°F 40.9°F 42.5°F
Jan 3 38.9°F 41.1°F 42.5°F
Jan 4 38.6°F 41.3°F 42.3°F
Jan 5 37.8°F 41.3°F 42.1°F
Jan 6 38.0°F 41.1°F 41.8°F
Jan 7 38.0°F 40.9°F 41.6°F
Jan 8 37.7°F 40.6°F 41.8°F
Jan 9 37.2°F 39.1°F 41.3°F
Jan 10 37.0°F 39.1°F 41.0°F
Jan 11 36.8°F 37.9°F 40.9°F
Jan 12 36.7°F 38.3°F 40.7°F
Jan 13 36.2°F 37.0°F 40.3°F
Jan 14 36.2°F 37.9°F 40.3°F
Jan 15 35.9°F 36.4°F 40.0°F
Dec 25 40.5°F 42.1°F 43.1°F
Dec 26 41.2°F 42.6°F 43.0°F
Dec 27 40.9°F 40.3°F 42.5°F
Dec 28 39.1°F 41.3°F 42.5°F
Dec 29 39.1°F 41.5°F 42.4°F
Dec 30 39.6°F 42.3°F 42.4°F
Dec 31 39.3°F 41.6°F 42.2°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 West Haven by month

In West Haven, August is the only month that offers comfortable swimming conditions. The amount of days when the water is warm enough is only 49.
The warmest water in West Haven was recorded on August 14, 2020, reaching a 78.6°F. While the coldest temperature occurred on February 23, 2025, dipping to 33.1°F. The average readings by season are 40.9°F in Winter, 46.3°F in Spring, 70.4°F in Summer, and 64.0°F in Autumn.