Sea Temperature in Dumai in September

Complete information on the sea temperature range in the South China Sea in Dumai in September. Historical daily data. Climate details for September. Tips on swimming conditions and beach relaxation in Dumai. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.

Water Temperature Range in Dumai in September

28°C

MINIMUN

29.5°C

AVERAGE

31°C

MAXIMUM

Historical Data of Water Temperature in September in Dumai

Water Temperature Chart for South China Sea in Dumai in September

Sea Temperature Table in Dumai in September Over the Past Years

Day	2024	2023	2022	Average
Sep 1	30°C	30°C	29°C	30.0°C
Sep 2	30°C	30°C	30°C	30.3°C
Sep 3	30°C	30°C	29°C	29.8°C
Sep 4	30°C	30°C	29°C	29.8°C
Sep 5	30°C	29°C	30°C	29.8°C
Sep 6	30°C	30°C	30°C	30.0°C
Sep 7	30°C	29°C	29°C	29.8°C
Sep 8	30°C	30°C	30°C	30.0°C
Sep 9	30°C	29°C	29°C	29.5°C
Sep 10	30°C	30°C	29°C	29.8°C
Sep 11	30°C	29°C	29°C	29.5°C
Sep 12	30°C	30°C	29°C	29.8°C
Sep 13	30°C	30°C	29°C	29.8°C
Sep 14	30°C	29°C	29°C	29.5°C
Sep 15	30°C	30°C	29°C	29.8°C
Sep 16	30°C	30°C	29°C	29.8°C
Sep 17	30°C	30°C	29°C	29.8°C
Sep 18	30°C	29°C	29°C	29.5°C
Sep 19	30°C	29°C	29°C	29.5°C
Sep 20	30°C	30°C	29°C	29.8°C
Sep 21	30°C	30°C	29°C	29.8°C
Sep 22	30°C	30°C	29°C	29.5°C
Sep 23	30°C	30°C	29°C	29.8°C
Sep 24	30°C	29°C	29°C	29.5°C
Sep 25	30°C	30°C	29°C	29.8°C
Sep 26	30°C	29°C	29°C	29.5°C
Sep 27	30°C	29°C	30°C	29.8°C
Sep 28	30°C	30°C	29°C	29.8°C
Sep 29	30°C	29°C	29°C	29.5°C

Dumai Climate and Swimming Opportunities in September

31°C

Average Day Air Temperature

23°C

Average Night Air Temperature

195 mm

Precipitation Amount per Month

17 days

Number of Rainy Days

12 hrs

Daylight
per Day

6 hrs

Sunshine
per Day

7 km/h

Average Wind Speed

85%

Average
humidity

Dumai lies within the Province of Riau in Indonesia. The average daytime temperature in Dumai in September is 31°C (88°F), while the nighttime average is 23°C (73°F). There are typically 17 rainy days during the month, with a total precipitation of 195 mm (7.7 inches). The daylight duration in September in Dumai is 12 hours, with an average of 6 hours of sunshine per day. The average wind speed in September is 7 km/h (4 mph), and the humidity level is around 85%.

The water temperature in Dumai in September ranges from 29°C to 30°C (84°F to 86°F). At the beginning of the month, the average temperature is around 30°C (86°F), shifting to 30°C (86°F) by mid-September and reaching 30°C (86°F) in the last ten days. Overall, the average sea temperature in Dumai for September is 30°C (86°F). The water is almost like a bath, perfect for those who prefer very warm conditions. However, it may not be as refreshing on extremely hot days.

Frequently Asked Questions About Water Temperatures in September in Dumai

What is the sea temperature in Dumai in September?

The water temperature in the South China Sea in Dumai in September ranges from 29°C to 30°C (84°F to 86°F).

Is it possible to swim in the South China Sea in Dumai in September?

The average sea temperature in Dumai in September is 30°C (86°F), and the air temperature is 31°C (88°F), so the water is almost like a bath, perfect for those who prefer very warm conditions. However, it may not be as refreshing on extremely hot days.