Current Sea Water Temperature:
+87.4°F
| Maximum Sea Water Temperature in October: | 91.8°F |
| Minimum Sea Water Temperature in October: | 85.4°F |
| Average water temperature in October: | 89.2°F |
| detailed information | |
Sea Water Temperature for the Last 10 Days:
| October 01 | 87.4°F | September 26 | 87.4°F |
| September 30 | 87.2°F | September 25 | 87.0°F |
| September 29 | 86.8°F | September 24 | 87.2°F |
| September 28 | 87.2°F | September 23 | 87.0°F |
| September 27 | 87.2°F | September 22 | 87.4°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
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
The average sea surface temperature in April 2026 for Surabaya was 90.5°F. The maximum and minimum values were 89.0°F and 91.2°F respectively.
Sea Water Temperature in December
The average sea surface temperature in December 2025 for Surabaya was 89.9°F. The maximum and minimum values were 89.0°F and 91.6°F respectively.
Indonesia Resorts:
NAME
F°
| Bali |  |
+74 |
| Batam |  |
+82 |
| Bintan | |
+82 |
| Denpasar | |
+82 |
| Gili |  |
+80 |
| Jakarta | |
+84 |
| Jimbaran | |
+82 |
| Kuta | |
+82 |
| Legian | |
+82 |
| Lombok | |
+76 |
| Nusa Dua | |
+82 |
| Padang |  |
+80 |
| Sanur | |
+82 |
| Seminyak | |
+82 |
| Yogyakarta | |
+74 |
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
Surabaya
Local time: 04:35
02 oct, friday
| 0600 |  |
84°F | NE 2 mph |
| 0900 | |
92°F | W 6 mph |
| 1200 |  |
96°F | W 7 mph |
| 1500 |  |
96°F | W 7 mph |
| 1800 |  |
88°F | W 12 mph |
| 2100 | |
86°F | W 11 mph |
03 oct, saturday
| 0000 | |
84°F | NW 4 mph |
| 0300 |  |
82°F | W 2 mph |