This is a climate-model estimate, not a measurement: we have no measured water temperature for rivers, lakes and reservoirs yet. Real measurements are available for seas only.
Cold water. Now in the Czarna Hancha +14°. Swimming season — July and August.
Water temperature map of the Czarna Hancha
ColderWarmer
Water temperature in the Czarna Hancha by city for 3 days 📍
| City | for 3 days | Swimming |
|---|---|---|
| Suwalki | +13° | Cold water |
🎣 Fishing in cities on the Czarna Hancha
Water temperature forecast in the Czarna Hancha for 3 days 📅
Wednesday
9 September
+14°
Thursday
10 September
+13°
Friday
11 September
+13°
Computed by a climate model. Water changes slowly — no sharp shifts.
Water temperature chart in the Czarna Hancha for 3 days 📈
+13°
minimum for 3 days
+14°
maximum for 3 days
↘
falling by +1°
🏊
For 3 days: no warmer than +14° — too cold for swimming.
Water questions for 3 days ❓
What is the water in the Czarna Hancha for 3 days?
From +13° to +14° by the climate model; trend — falling by +1°.
Will the water warm up by the weekend?
On Saturday about +13°.
Can you swim in the Czarna Hancha for 3 days?
no warmer than +14° — too cold for swimming.
Water temperature forecast in the Czarna Hancha for 3 days. Daily values and by-city temperatures for this horizon to plan a trip and a swim. Full reference data — map, monthly climate normal, yearly archive and swimming season — is on the main page.