Fairfield — Water Temperature in May

Water Temperature Range

8°C

minimum

13°C

average

17°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
MAY 1	9°C	10°C	11°C	8°C
MAY 2	9°C	9°C	11°C	8°C
MAY 3	10°C	10°C	11°C	9°C
MAY 4	10°C	11°C	11°C	9°C
MAY 5	10°C	11°C	11°C	9°C
MAY 6	11°C	11°C	11°C	10°C
MAY 7	11°C	11°C	12°C	10°C
MAY 8	11°C	11°C	12°C	10°C
MAY 9	11°C	12°C	12°C	10°C
MAY 10	11°C	11°C	12°C	11°C
MAY 11	12°C	12°C	12°C	11°C
MAY 12	11°C	11°C	12°C	11°C
MAY 13	12°C	11°C	12°C	12°C
MAY 14	12°C	11°C	13°C	12°C
MAY 15	12°C	12°C	13°C	12°C
MAY 16	13°C	13°C	13°C	13°C
MAY 17	13°C	13°C	13°C	13°C
MAY 18	14°C	14°C	14°C	13°C
MAY 19	14°C	14°C	15°C	13°C
MAY 20	14°C	13°C	14°C	14°C
MAY 21	14°C	13°C	15°C	14°C
MAY 22	14°C	14°C	15°C	14°C
MAY 23	15°C	14°C	16°C	15°C
MAY 24	15°C	14°C	16°C	15°C
MAY 25	15°C	13°C	17°C	15°C
MAY 26	16°C	13°C	17°C	16°C
MAY 27	15°C	12°C	17°C	16°C
MAY 28	16°C	13°C	17°C	16°C
MAY 29	15°C	13°C	16°C	16°C
MAY 30	16°C	13°C	15°C	17°C
MAY 31	16°C	13°C	15°C	17°C

May: Climate and Swimming Opportunities

Average Night Air Temperature

9°C

Average Day Air Temperature

20°C

Precipitation Amount per Month

91 mm

Number of Rainy Days

Daylight per Day

14 hrs

Sunshine per Day

9 hrs

Average Wind Speed

15 km/h

Average Humidity

69%

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.