Measurements:
°C
°F
Surabaya
86°F
E 6 mph
Feels like: 94°F
Precip: 0%
World Resorts Indonesia Surabaya Weather

Surabaya Sea Water Temperature

Current Sea Water Temperature:
+89.2°F
Maximum Sea Water Temperature in December: 93.0°F
Minimum Sea Water Temperature in December: 87.6°F
Average water temperature in December: 89.9°F

Sea Water Temperature for the Last 10 Days:

December 13 89.2°F December 08 89.8°F
December 12 89.4°F December 07 89.8°F
December 11 89.4°F December 06 90.4°F
December 10 89.6°F December 05 90.6°F
December 09 89.6°F December 04 90.8°F

When is the Warmest Sea for Surabaya?

According to our data for the last three years for Surabaya the highest average sea water temperature was in November, April and December.

Average Water Temperature by Month, °F

Sea Water Temperature in November

Select Year: 2025 2024 2023

The average sea surface temperature in November 2025 for Surabaya was 90.3°F. The maximum and minimum values were 89.6°F and 91.8°F respectively.

Sea Water Temperature in April

Select Year: 2025 2024 2023

The average sea surface temperature in April 2025 for Surabaya was 89.9°F. The maximum and minimum values were 89.0°F and 91.0°F respectively.

Sea Water Temperature in December

Select Year: 2024 2023 2022

The average sea surface temperature in December 2024 for Surabaya was 89.9°F. The maximum and minimum values were 89.0°F and 91.6°F respectively.

Best Time to Visit Surabaya
The most sunny months:
September 26 days
August 26 days
July 24 days
The most warm months:
October 98.7 °F
September 97.7 °F
November 97.0 °F
Warmest sea temperature:
November 90.7 °F
April 90.2 °F
December 89.9 °F
The most cold months:
February 92.3 °F
January 92.5 °F
March 93.9 °F
The most rainy months:
January 18 days
February 16 days
March 16 days
The most windy months:
January 7 mph
September 6 mph
August 6 mph

Surabaya on the Weather Map

Indonesia Resorts:
NAME
Bali +84
Bintan +84
Denpasar +88
Gili +88
Jakarta +88
Jimbaran +86
Kuta +86
Legian +86
Lombok +84
Medan +80
Nusa Dua +86
Padang +82
Sanur +88
Seminyak +86
Yogyakarta +82
24 Hours Weather Forecast
Surabaya
Local time: 10:12
14 dec, sunday
1200 94°F
E
7 mph
1500 96°F
SE
9 mph
1800 88°F
SE
9 mph
2100 82°F
SE
5 mph
15 dec, monday
0000 82°F
SE
3 mph
0300 82°F
NE
3 mph
0600 80°F
NE
3 mph
0900 86°F
NE
2 mph