Mendocino — Water Temperature in June

Water Temperature Range

8°C

minimum

11°C

average

14°C

maximum

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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	2026	2025	2024	2023
JUN 1	-10°C	11°C	9°C	11°C
JUN 2	11°C	10°C	10°C	10°C
JUN 3	11°C	11°C	10°C	11°C
JUN 4	11°C	10°C	9°C	11°C
JUN 5	11°C	11°C	9°C	11°C
JUN 6	11°C	11°C	9°C	11°C
JUN 7	11°C	11°C	10°C	10°C
JUN 8	10°C	11°C	10°C	10°C
JUN 9	-10°C	10°C	10°C	11°C
JUN 10	10°C	12°C	10°C	11°C
JUN 11	10°C	11°C	10°C	11°C
JUN 12	10°C	11°C	10°C	12°C
JUN 13	11°C	12°C	10°C	12°C
JUN 14	11°C	12°C	10°C	12°C
JUN 15	11°C	11°C	10°C	13°C
JUN 16	11°C	12°C	10°C	13°C
JUN 17	11°C	12°C	9°C	13°C
JUN 18	12°C	10°C	9°C	12°C
JUN 19	12°C	10°C	9°C	11°C
JUN 20	12°C	11°C	10°C	11°C
JUN 21	12°C	11°C	10°C	11°C
JUN 22	12°C	11°C	10°C	11°C
JUN 23	12°C	12°C	10°C	12°C
JUN 24	12°C	12°C	10°C	12°C
JUN 25	13°C	12°C	9°C	13°C
JUN 26	13°C	12°C	10°C	13°C
JUN 27	13°C	11°C	9°C	13°C
JUN 28	13°C	11°C	10°C	12°C
JUN 29	13°C	12°C	10°C	13°C
JUN 30	12°C	11°C	10°C	12°C

June: Climate and Swimming Opportunities

Average Night Air Temperature

23°C

Average Day Air Temperature

32°C

Precipitation Amount per Month

179 mm

Number of Rainy Days

Daylight per Day

14 hrs

Sunshine per Day

9 hrs

Average Wind Speed

12 km/h

Average Humidity

75%

With such a ratio between the average monthly temperatures of water and air, swimming feels very cold and is only for cold-water enthusiasts. Most people will prefer just a brief splash, because warming up afterward can take time.