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

67.9

°F

September 23, 14:09

Trend:

decreasing

Yesterday:

69.5°F

Tomorrow:

67.9°F

Sunrise:

06:04

Sunset:

18:12

Day Length:

12 h. 8 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 67.9°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 0.5°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 notably higher than the average recorded over the past two weeks, indicating a significant warming trend. 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 70.3°F on 2023, while the historical minimum was 67.2°F on 2019.

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. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 67.7°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
Sep 9 66.1°F 67.0°F 67.0°F
Sep 10 66.2°F 67.3°F 67.1°F
Sep 11 64.6°F 67.2°F 66.9°F
Sep 12 66.2°F 67.2°F 67.1°F
Sep 13 65.6°F 67.4°F 66.9°F
Sep 14 65.5°F 67.1°F 66.8°F
Sep 15 65.8°F 67.4°F 67.2°F
Sep 16 65.5°F 67.5°F 67.3°F
Sep 17 66.4°F 67.6°F 67.5°F
Sep 18 66.4°F 68.2°F 67.8°F
Sep 19 66.7°F 68.2°F 67.9°F
Sep 20 66.3°F 68.9°F 68.1°F
Sep 21 68.2°F 69.2°F 68.3°F
Sep 22 69.5°F 69.6°F 68.4°F
Sep 23 67.9°F 69.9°F 68.4°F
Sep 24 67.9°F 69.8°F 68.3°F
Sep 25 67.7°F 69.5°F 68.1°F
Sep 26 67.6°F 69.0°F 68.0°F
Sep 27 67.3°F 68.4°F 67.7°F
Sep 28 67.4°F 68.1°F 67.8°F
Sep 29 67.8°F 68.2°F 68.2°F
Sep 30 68.1°F 68.3°F 68.5°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.