Columbia — Water Temperature in May

Water Temperature Range

15°C

minimum

20°C

average

24°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	2026	2025	2024	2023
MAY 1	-10°C	19°C	18°C	18°C
MAY 2	19°C	17°C	18°C	17°C
MAY 3	19°C	18°C	19°C	17°C
MAY 4	19°C	18°C	18°C	17°C
MAY 5	19°C	18°C	19°C	18°C
MAY 6	19°C	18°C	18°C	18°C
MAY 7	19°C	19°C	19°C	19°C
MAY 8	20°C	19°C	19°C	19°C
MAY 9	20°C	19°C	20°C	19°C
MAY 10	20°C	19°C	19°C	19°C
MAY 11	20°C	19°C	20°C	18°C
MAY 12	20°C	19°C	19°C	19°C
MAY 13	20°C	19°C	20°C	18°C
MAY 14	20°C	19°C	19°C	18°C
MAY 15	20°C	20°C	21°C	18°C
MAY 16	21°C	20°C	21°C	18°C
MAY 17	21°C	20°C	22°C	18°C
MAY 18	21°C	21°C	21°C	19°C
MAY 19	21°C	21°C	22°C	19°C
MAY 20	21°C	21°C	21°C	20°C
MAY 21	22°C	21°C	23°C	19°C
MAY 22	23°C	21°C	22°C	21°C
MAY 23	23°C	21°C	21°C	21°C
MAY 24	23°C	21°C	21°C	21°C
MAY 25	23°C	22°C	22°C	21°C
MAY 26	23°C	22°C	21°C	23°C
MAY 27	23°C	22°C	21°C	23°C
MAY 28	24°C	22°C	21°C	24°C
MAY 29	24°C	22°C	21°C	24°C
MAY 30	25°C	22°C	21°C	23°C
MAY 31	24°C	22°C	21°C	22°C

May: Climate and Swimming Opportunities

Average Night Air Temperature

14°C

Average Day Air Temperature

25°C

Precipitation Amount per Month

99 mm

Number of Rainy Days

Daylight per Day

14 hrs

Sunshine per Day

9 hrs

Average Wind Speed

16 km/h

Average Humidity

74%

With such a ratio between the average monthly temperatures of water and air, swimming feels warm and comfortable even if the day isn’t hot. The water can feel warmer than the air, so getting out may feel a bit cool.