All data are in degrees Fahrenheit

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Water temperature in Joinville

Detailed information about the current water temperature in Joinville. 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 Joinville now

67.5

°F

September 16, 11:41

Trend:

increasing

Yesterday:

67.4°F

Tomorrow:

67.7°F

Sunrise:

06:12

Sunset:

18:09

Day Length:

11 h. 57 min.

Joinville in September

Minimum:

78.7°F

Average:

80.1°F

Maximum:

82.7°F

Sea water temperature in Joinville today

As of now, in Joinville, the water temperature is 67.5°F. Swimming in water of this temperature is seen as relatively warm and enjoyable for some individuals, although many might find it slightly too cool. Today's reading is about the same as 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 rise a bit.

Recent sea temperature and forecast

The water temperature today is above average for the last two weeks, showing a small increase in temperature. It also falls within the range of the average temperature recorded for this date, suggesting a consistent weather trend. The maximum temperature recorded for this date was 69.4°F on 2017, while the historical minimum was 66.7°F on 2022.

Over the past two weeks, the water temperature has closely aligned with historical averages for those days. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 68.2°F, with minimum temperature starting at 67.7°F, while the maximum might reach 68.4°F.

Daily water temperature in Joinville

Date Current Year

actual* / forecast**

last year 10 years average
Sep 2 66.5°F 65.9°F 67.2°F
Sep 3 66.4°F 65.8°F 67.1°F
Sep 4 66.7°F 65.9°F 67.2°F
Sep 5 66.9°F 66.2°F 67.4°F
Sep 6 67.4°F 66.5°F 67.5°F
Sep 7 67.5°F 66.6°F 67.5°F
Sep 8 67.2°F 67.2°F 67.4°F
Sep 9 67.0°F 67.0°F 67.2°F
Sep 10 67.3°F 66.9°F 67.2°F
Sep 11 67.2°F 67.0°F 67.2°F
Sep 12 67.2°F 67.6°F 67.3°F
Sep 13 67.4°F 67.9°F 67.0°F
Sep 14 67.1°F 67.9°F 66.9°F
Sep 15 67.4°F 68.2°F 67.3°F
Sep 16 67.5°F 68.2°F 67.5°F
Sep 17 67.7°F 68.2°F 67.6°F
Sep 18 67.9°F 68.6°F 67.9°F
Sep 19 68.1°F 68.3°F 68.1°F
Sep 20 68.3°F 68.4°F 68.3°F
Sep 21 68.4°F 68.3°F 68.4°F
Sep 22 68.4°F 68.1°F 68.4°F
Sep 23 68.4°F 67.9°F 68.4°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 Joinville by month

In Joinville, the months November through April offer comfortable swimming conditions, which amounts to 176 swimming days.
The warmest water in Joinville was recorded on March 4, 2025, reaching a 85.3°F. While the coldest temperature occurred on July 24, 2016, dipping to 62.3°F. The average readings by season are 79.4°F in Winter, 76.6°F in Spring, 66.6°F in Summer, and 70.6°F in Autumn.