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.
Comfortable for swimming. Now in the Ona +19°. Swimming season — July and August.
Water temperature forecast in the Ona for the week 📅
Monday
17 August
+19°
Tuesday
18 August
+19°
Wednesday
19 August
+18°
Thursday
20 August
+18°
Friday
21 August
+18°
Saturday
22 August
+18°
Sunday
23 August
+18°
Computed by a climate model. Water changes slowly — no sharp shifts.
Water temperature chart in the Ona for the week 📈
+18°
minimum for the week
+19°
maximum for the week
↘
falling by +1°
🏊
For the week: up to +19° — for hardy swimmers.
This weekend 🏖️
Saturday, 22 August · water +18° · comfortable for swimming
Sunday, 23 August · water +18° · cool for swimming
Water questions for the week ❓
What is the water in the Ona for the week?
From +18° to +19° by the climate model; trend — falling by +1°.
Will the water warm up by the weekend?
On Saturday about +18°.
Can you swim in the Ona for the week?
up to +19° — for hardy swimmers.
Water temperature forecast in the Ona for the week. Daily values for this horizon to plan a trip and a swim. Full reference data — monthly climate normal and swimming season — is on the main page.