Sao Tome — Water Temperature in May

Water Temperature Range

26°C

minimum

28°C

average

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

May: Climate and Swimming Opportunities

Average Night Air Temperature

12°C

Average Day Air Temperature

30°C

Precipitation Amount per Month

2 mm

Number of Rainy Days

Daylight per Day

11 hrs

Sunshine per Day

10 hrs

Average Wind Speed

8 km/h

Average Humidity

66%

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.