Key Biscayne — Water Temperature in June

Water Temperature Range

26°C

minimum

29°C

average

31°C

maximum

Get instant access to real-time water temperatures for this and all other locations with our iOS and Android apps.

Water Temperature Chart for Month

The chart shows the average daily water temperature for each day of the month based on historical data.

Table of Water Temperatures by Day of the Month for Previous Years

Day	2025	2024	2023	2022
JUN 1	28°C	28°C	28°C	28°C
JUN 2	28°C	29°C	28°C	28°C
JUN 3	29°C	29°C	28°C	29°C
JUN 4	28°C	28°C	28°C	29°C
JUN 5	28°C	28°C	28°C	28°C
JUN 6	28°C	27°C	28°C	29°C
JUN 7	28°C	27°C	28°C	28°C
JUN 8	28°C	27°C	28°C	27°C
JUN 9	28°C	28°C	28°C	27°C
JUN 10	28°C	29°C	28°C	27°C
JUN 11	29°C	29°C	28°C	29°C
JUN 12	28°C	29°C	29°C	28°C
JUN 13	29°C	28°C	29°C	28°C
JUN 14	29°C	28°C	29°C	30°C
JUN 15	29°C	29°C	28°C	28°C
JUN 16	29°C	29°C	28°C	28°C
JUN 17	29°C	30°C	28°C	29°C
JUN 18	29°C	29°C	28°C	29°C
JUN 19	29°C	29°C	29°C	29°C
JUN 20	29°C	29°C	29°C	29°C
JUN 21	29°C	30°C	30°C	29°C
JUN 22	29°C	30°C	30°C	28°C
JUN 23	29°C	30°C	30°C	29°C
JUN 24	29°C	29°C	30°C	30°C
JUN 25	29°C	29°C	29°C	29°C
JUN 26	29°C	28°C	29°C	30°C
JUN 27	29°C	28°C	29°C	29°C
JUN 28	29°C	28°C	28°C	30°C
JUN 29	28°C	28°C	28°C	30°C
JUN 30	29°C	29°C	28°C	29°C

June: Climate and Swimming Opportunities

Average Night Air Temperature

24°C

Average Day Air Temperature

32°C

Precipitation Amount per Month

248 mm

Number of Rainy Days

Daylight per Day

14 hrs

Sunshine per Day

9 hrs

Average Wind Speed

14 km/h

Average Humidity

76%

At such water and air temperatures, swimming feels truly comfortable and relaxing. The warm water won’t cool you down, so you can stay in for a long time without getting chilled.