Current sea water temperature:
+66.9°F
| Minimum sea water temperature in July: | 77.4°F |
| Maximum sea water temperature in July: | 54.3°F |
| Average sea water temperature in July: | 65.6°F |
| more information | |
14 days
forecast
forecast
| Lahti |
monthly
weather
weather
| Lahti |
Sea water temperature for the last 10 days:
| July 17 | 66.9°F | July 12 | 65.5°F |
| July 16 | 65.8°F | July 11 | 64.9°F |
| July 15 | 65.8°F | July 10 | 64.2°F |
| July 14 | 65.1°F | July 9 | 64.4°F |
| July 13 | 66.9°F | July 8 | 64.6°F |
Monthly sea water temperature, °F
When is the warmest sea in Lahti?
Based on the data about daily sea water temperature for the last three years the warmest sea in Lahti was noticed in August, July and September.
Monthly Sea Temperatures in Lahti, °F
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 67.2°F. The highest and lowest sea temperatures during the month were 74.7°F and 62.2°F.
Sea water temperature in July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 65.9°F. The highest and lowest sea temperatures during the month were 69.1°F and 64.2°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 60.6°F. The highest and lowest sea temperatures during the month were 63.7°F and 56.5°F.
current
weather
weather
| Lahti |
weather in
July
July
| Lahti |
Best time for vacation in Lahti
Lahti on a weather map
Places in Finland:
Name
°F
24 Hours Forecast
Lahti
Local time: 09:20
July 18, saturday
1200

73°F
N
9 mph
9 mph
1500

70°F
N
9 mph
9 mph
1800

75°F
NW
9 mph
9 mph
2100

70°F
NW
9 mph
9 mph
July 19, sunday
0000

63°F
NW
8 mph
8 mph
0300

63°F
N
13 mph
13 mph
0600

61°F
N
11 mph
11 mph
0900

61°F
NE
10 mph
10 mph




























