Current Sea Water Temperature:
+43.8°F
| Maximum Sea Water Temperature in May: | 56.8°F |
| Minimum Sea Water Temperature in May: | 35.2°F |
| Average water temperature in May: | 44.0°F |
| detailed information | |
Sea Water Temperature for the Last 10 Days:
| May 17 | 43.8°F | May 12 | 42.6°F |
| May 16 | 43.4°F | May 11 | 42.6°F |
| May 15 | 43.6°F | May 10 | 42.2°F |
| May 14 | 42.6°F | May 09 | 43.2°F |
| May 13 | 42.4°F | May 08 | 42.8°F |
When is the Warmest Sea for Tallinn?
According to our data for the last three years for Tallinn the highest average sea water temperature was in August, July and September.
Average Water Temperature by Month, °F
Sea Water Temperature in August
The average sea surface temperature in August 2025 for Tallinn was 66.7°F. The maximum and minimum values were 63.2°F and 69.8°F respectively.
Sea Water Temperature in July
The average sea surface temperature in July 2025 for Tallinn was 63.2°F. The maximum and minimum values were 59.2°F and 70.0°F respectively.
Sea Water Temperature in September
The average sea surface temperature in September 2025 for Tallinn was 60.8°F. The maximum and minimum values were 58.2°F and 64.2°F respectively.
Estonia Resorts:
NAME
F°
| Jõhvi |  |
+50 |
| Kohtla-Järve |  |
+50 |
| Kunda | |
+54 |
| Kuressaare |  |
+54 |
| Narva | |
+56 |
| Otepaa | |
+54 |
| Parnu |  |
+56 |
| Saaremaa | |
+54 |
| Sillamäe | |
+50 |
| Tallinn | |
+56 |
| Tartu | |
+54 |
| Toila | |
+50 |
| Valga | |
+52 |
| Varska | |
+56 |
| Võru | |
+58 |
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
Tallinn
Local time: 14:45
17 may, sunday
| 1500 |  |
56°F | SE 7 mph |
| 1800 |  |
52°F | SE 5 mph |
| 2100 | |
46°F | SE 2 mph |
18 may, monday
| 0000 |  |
42°F | E 3 mph |
| 0300 | |
42°F | E 2 mph |
| 0600 | |
44°F | S 2 mph |
| 0900 | |
48°F | SW 6 mph |
| 1200 | |
52°F | SW 8 mph |