All data are in degrees Fahrenheit

en

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

79.3

°F

January 22, 17:14

Trend:

stable

Yesterday:

80.4°F

Tomorrow:

79.4°F

Sunrise:

06:42

Sunset:

20:12

Day Length:

13 h. 30 min.

Joinville in January

Minimum:

78.0°F

Average:

79.5°F

Maximum:

81.2°F

Sea water temperature in Joinville today

As of now, in Joinville, the water temperature is 79.3°F. It's safe to say that the water is comfortably warm for various water-related activities. Today's reading is 1.0°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 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 81.9°F on 2019, while the historical minimum was 78.8°F on 2025.

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 79.7°F, with minimum temperature starting at 79.4°F, while the maximum might reach 80.0°F.

Daily water temperature in Joinville

Date Current Year

actual* / forecast**

last year 10 years average
Jan 8 79.9°F 78.5°F 80.1°F
Jan 9 79.9°F 78.7°F 80.1°F
Jan 10 79.9°F 78.7°F 80.1°F
Jan 11 80.0°F 78.8°F 80.2°F
Jan 12 80.1°F 79.0°F 80.3°F
Jan 13 80.3°F 79.2°F 80.4°F
Jan 14 80.7°F 78.8°F 80.4°F
Jan 15 80.5°F 78.7°F 80.2°F
Jan 16 80.5°F 78.7°F 80.2°F
Jan 17 80.3°F 78.6°F 80.1°F
Jan 18 80.6°F 78.4°F 80.2°F
Jan 19 80.5°F 78.5°F 80.2°F
Jan 20 80.4°F 78.5°F 80.2°F
Jan 21 80.4°F 78.7°F 80.2°F
Jan 22 79.3°F 78.8°F 80.3°F
Jan 23 79.4°F 78.9°F 80.4°F
Jan 24 79.6°F 79.5°F 80.6°F
Jan 25 79.8°F 79.8°F 80.8°F
Jan 26 80.0°F 79.7°F 80.9°F
Jan 27 80.0°F 79.6°F 80.9°F
Jan 28 79.7°F 79.1°F 80.6°F
Jan 29 79.5°F 79.1°F 80.4°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 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 79.4°F in Winter, 76.6°F in Spring, 66.5°F in Summer, and 70.6°F in Autumn.