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

66.9

°F

September 8, 23:38

Trend:

stable

Yesterday:

66.8°F

Tomorrow:

66.7°F

Sunrise:

06:21

Sunset:

18:06

Day Length:

11 h. 45 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 66.9°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 0.4°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 slightly 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 68.8°F on 2017, while the historical minimum was 66.8°F on 2022.

The water temperature over the last two weeks displayed soome variability. While the two week average stayed close to the historical average, there were some days when the temperature was close to the maximum recorded over the past years. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 66.7°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Joinville

Date Current Year

actual* / forecast**

last year 10 years average
Aug 25 66.4°F 64.7°F 65.8°F
Aug 26 66.7°F 65.0°F 66.1°F
Aug 27 66.3°F 65.0°F 66.1°F
Aug 28 66.8°F 65.2°F 66.2°F
Aug 29 67.7°F 65.3°F 66.3°F
Aug 30 67.3°F 65.4°F 66.4°F
Aug 31 67.7°F 65.7°F 66.8°F
Sep 1 68.1°F 65.9°F 66.9°F
Sep 2 67.6°F 66.5°F 67.0°F
Sep 3 67.5°F 66.4°F 67.0°F
Sep 4 68.1°F 66.7°F 67.1°F
Sep 5 67.6°F 66.9°F 67.3°F
Sep 6 67.3°F 67.4°F 67.4°F
Sep 7 66.8°F 67.5°F 67.4°F
Sep 8 66.9°F 67.2°F 67.3°F
Sep 9 66.7°F 67.0°F 67.1°F
Sep 10 66.7°F 67.3°F 67.2°F
Sep 11 66.7°F 67.2°F 67.1°F
Sep 12 66.8°F 67.2°F 67.2°F
Sep 13 66.6°F 67.4°F 67.0°F
Sep 14 66.5°F 67.1°F 66.9°F
Sep 15 66.9°F 67.4°F 67.3°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 177 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 79.5°F in Winter, 76.7°F in Spring, 66.5°F in Summer, and 70.6°F in Autumn.