What is the current water temperature in Joinville?

Q: What is the current water temperature in Joinville?

As of now, in Joinville, the water temperature is 21.48°C. Swimming in water of this temperature is seen as relatively warm and enjoyable for some individuals, although many might find it slightly too cool.

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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.

70.7

°F

October 21, 16:19

Trend:

stable

Yesterday:

70.6°F

Tomorrow:

70.5°F

Sunrise:

05:35

Sunset:

18:26

Day Length:

12 h. 51 min.

Joinville in October

Minimum:

78.6°F

Average:

80.1°F

Maximum:

82.6°F

Sea water temperature in Joinville today

As of now, in Joinville, the water temperature is 70.7°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 0.6°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

The water temperature today is above average for the last two weeks, showing a small increase in temperature. It is also close to the historical minimum temperature for this date. The maximum temperature recorded for this date was 72.3°F on 2024, while the historical minimum was 70.1°F on 2022.

latest data

last year

Over the past two weeks, the water temperature has closely aligned with historical averages for those days. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 70.8°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
Oct 7	69.4°F	69.7°F	69.7°F
Oct 8	68.8°F	69.6°F	69.5°F
Oct 9	68.1°F	69.4°F	69.3°F
Oct 10	69.5°F	69.4°F	69.4°F
Oct 11	69.6°F	69.5°F	69.5°F
Oct 12	69.4°F	69.3°F	69.5°F
Oct 13	69.7°F	69.7°F	69.9°F
Oct 14	69.5°F	70.0°F	70.1°F
Oct 15	70.4°F	70.2°F	70.4°F
Oct 16	71.6°F	70.6°F	70.6°F
Oct 17	71.1°F	71.0°F	70.9°F
Oct 18	71.7°F	71.2°F	71.2°F
Oct 19	71.0°F	71.3°F	71.2°F
Oct 20	70.6°F	71.4°F	71.2°F
Oct 21	70.7°F	71.3°F	71.3°F
Oct 22	70.5°F	71.2°F	71.1°F
Oct 23	70.6°F	71.2°F	71.3°F
Oct 24	70.6°F	70.9°F	71.2°F
Oct 25	70.6°F	71.3°F	71.2°F
Oct 26	70.7°F	71.5°F	71.3°F
Oct 27	71.1°F	71.7°F	71.7°F
Oct 28	71.6°F	72.0°F	72.2°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 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.