Current sea water temperature:
+50.4°F
| Minimum sea water temperature in May: | 64.4°F |
| Maximum sea water temperature in May: | 34.7°F |
| Average sea water temperature in May: | 47.5°F |
| more information | |
14 days
forecast
forecast
| Lahti |
monthly
weather
weather
| Lahti |
Sea water temperature for the last 10 days:
| May 18 | 50.4°F | May 13 | 48.0°F |
| May 17 | 49.8°F | May 12 | 48.0°F |
| May 16 | 49.1°F | May 11 | 47.5°F |
| May 15 | 49.3°F | May 10 | 46.9°F |
| May 14 | 48.2°F | May 9 | 46.0°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:
2025
2024
2023
The average sea water temperature in July of 2025 was 67.4°F. The highest and lowest sea temperatures during the month were 74.5°F and 59.7°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
May
May
| Lahti |
Best time for vacation in Lahti
Lahti on a weather map
Places in Finland:
Name
°F
24 Hours Forecast
Lahti
Local time: 15:09
May 18, monday
1800
61°F
SW
6 mph
6 mph
2100
55°F
SW
5 mph
5 mph
May 19, tuesday
0000
52°F
S
6 mph
6 mph
0300
50°F
S
9 mph
9 mph
0600
50°F
SW
9 mph
9 mph
0900
57°F
W
9 mph
9 mph
1200
72°F
NW
9 mph
9 mph
1500
77°F
NW
11 mph
11 mph
