SeaTemperatu.re

Water temperature of the Indian Ocean in september Where to swim in the Indian Ocean in september 2025?

Several countries border the seaside of the Indian Ocean, including: South Africa, Australia, Bali, Bangladesh, Myanmar, Borneo (Kalimantan), Mauritius, India, Indonesia and Java. We measure the water temperature daily in these countries and archive it in order to calculate monthly averages, like those of the month of september.

The seasonal average for the water temperature in the month of september is between 55°F and 86°F. The lowest sea temperature measured this month is 54°F and the highest is 88°F.

The sea temperature map of the Indian Ocean in september

The map below presents a monthly average of the water temperature of the Indian Ocean for the month of september for several coastal cities. You can zoom and move around on the map. By clicking on the markers, you can see sea temperature details by city in september.

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Leaflet | © OpenStreetMap contributors
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Where can you swim in the Indian Ocean in september?

Below, see the average temperatures measured in september in the different countries on the shores of the Indian Ocean.

South Africa

Sea temperature in september at the shore of the Indian Ocean:

60°F to 74°F

pleasant swimming

Australia

Sea temperature in september at the shore of the Indian Ocean:

57°F to 82°F

ideal swimming

Bali

Sea temperature in september at the shore of the Indian Ocean:

80°F to 82°F

ideal swimming

Bangladesh

Sea temperature in september at the shore of the Indian Ocean:

85°F to 85°F

ideal swimming

Myanmar

Sea temperature in september at the shore of the Indian Ocean:

84°F

ideal swimming

Borneo (Kalimantan)

Sea temperature in september at the shore of the Indian Ocean:

83°F to 84°F

ideal swimming

Mauritius

Sea temperature in september at the shore of the Indian Ocean:

74°F to 75°F

pleasant swimming

India

Sea temperature in september at the shore of the Indian Ocean:

81°F to 85°F

ideal swimming

Indonesia

Sea temperature in september at the shore of the Indian Ocean:

80°F to 82°F

ideal swimming

Java

Sea temperature in september at the shore of the Indian Ocean:

79°F to 83°F

ideal swimming

Kenya

Sea temperature in september at the shore of the Indian Ocean:

79°F to 79°F

pleasant swimming

Kerala

Sea temperature in september at the shore of the Indian Ocean:

81°F to 82°F

ideal swimming

Lombok

Sea temperature in september at the shore of the Indian Ocean:

81°F to 83°F

ideal swimming

Madagascar

Sea temperature in september at the shore of the Indian Ocean:

74°F to 80°F

ideal swimming

Malaysia

Sea temperature in september at the shore of the Indian Ocean:

85°F to 86°F

ideal swimming

Maldives

Sea temperature in september at the shore of the Indian Ocean:

84°F to 85°F

ideal swimming

Mozambique

Sea temperature in september at the shore of the Indian Ocean:

74°F to 79°F

ideal swimming

Reunion

Sea temperature in september at the shore of the Indian Ocean:

75°F to 76°F

pleasant swimming

Rodrigues islands

Sea temperature in september at the shore of the Indian Ocean:

74°F to 75°F

pleasant swimming

Seychelles

Sea temperature in september at the shore of the Indian Ocean:

82°F to 83°F

ideal swimming

Singapore

Sea temperature in september at the shore of the Indian Ocean:

85°F

ideal swimming

Water temperature of the Indian Ocean: choose another month

See monthly seasonal averages of the water temperature of the Indian Ocean by clicking on the links below:

Water temperature of the Indian Ocean in january - Minimum: 60°F/Maximum: 87°FWater temperature of the Indian Ocean in february - Minimum: 61°F/Maximum: 87°FWater temperature of the Indian Ocean in march - Minimum: 61°F/Maximum: 87°FWater temperature of the Indian Ocean in april - Minimum: 59°F/Maximum: 87°FWater temperature of the Indian Ocean in may - Minimum: 58°F/Maximum: 87°FWater temperature of the Indian Ocean in june - Minimum: 56°F/Maximum: 87°FWater temperature of the Indian Ocean in july - Minimum: 56°F/Maximum: 86°FWater temperature of the Indian Ocean in august - Minimum: 55°F/Maximum: 86°FWater temperature of the Indian Ocean in september - Minimum: 55°F/Maximum: 86°FWater temperature of the Indian Ocean in october - Minimum: 55°F/Maximum: 86°FWater temperature of the Indian Ocean in november - Minimum: 58°F/Maximum: 88°FWater temperature of the Indian Ocean in december - Minimum: 60°F/Maximum: 89°F
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