Haeju — Water Temperature in July
Water Temperature Range
18°C
minimum
22°C
average
26°C
maximum
Water Temperature Chart for Month
The chart shows the average daily water temperature for each day of the month based on historical data.
Table of Water Temperatures by Day of the Month for Previous Years
| Day | 2026 | 2025 | 2024 | 2023 |
|---|---|---|---|---|
| JUL 1 | - | 23°C | 19°C | 20°C |
| JUL 2 | 23°C | 20°C | 20°C | 19°C |
| JUL 3 | 23°C | 20°C | 19°C | 21°C |
| JUL 4 | 23°C | 20°C | 19°C | 20°C |
| JUL 5 | 23°C | 20°C | 19°C | 19°C |
| JUL 6 | 23°C | 21°C | 20°C | 19°C |
| JUL 7 | 24°C | 21°C | 21°C | 19°C |
| JUL 8 | 23°C | 21°C | 21°C | 19°C |
| JUL 9 | 23°C | 21°C | 21°C | 20°C |
| JUL 10 | 24°C | 22°C | 23°C | 20°C |
| JUL 11 | 23°C | 21°C | 21°C | 20°C |
| JUL 12 | 23°C | 22°C | 22°C | 21°C |
| JUL 13 | 24°C | 22°C | 22°C | 21°C |
| JUL 14 | 23°C | 22°C | 22°C | 21°C |
| JUL 15 | 25°C | 22°C | 22°C | 21°C |
| JUL 16 | 24°C | 22°C | 21°C | 22°C |
| JUL 17 | 24°C | 22°C | 21°C | 21°C |
| JUL 18 | 25°C | 22°C | 21°C | 23°C |
| JUL 19 | - | 22°C | 22°C | 23°C |
| JUL 20 | - | 23°C | 22°C | 24°C |
| JUL 21 | - | 23°C | 22°C | 24°C |
| JUL 22 | - | 23°C | 22°C | 24°C |
| JUL 23 | - | 23°C | 22°C | 25°C |
| JUL 24 | - | 23°C | 23°C | 24°C |
| JUL 25 | - | 23°C | 23°C | 24°C |
| JUL 26 | - | 23°C | 22°C | 25°C |
| JUL 27 | - | 23°C | 23°C | 25°C |
| JUL 28 | - | 23°C | 23°C | 25°C |
| JUL 29 | - | 23°C | 23°C | 24°C |
| JUL 30 | - | 23°C | 23°C | 24°C |
| JUL 31 | - | 23°C | 23°C | 25°C |
July: Climate and Swimming Opportunities
Average Night Air Temperature
21°C
Average Day Air Temperature
28°C
Precipitation Amount per Month
361 mm
Number of Rainy Days
13
Daylight per Day
14 hrs
Sunshine per Day
5 hrs
Average Wind Speed
8 km/h
Average Humidity
82%
At such water and air temperatures, swimming is pleasant and refreshing rather than hot. After you get in, it feels comfortable, and you’ll warm up quickly when you come out.