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 Onon +21°. Swimming season — from June to September.
Water temperature map of the Onon
ColderWarmer
Water temperature in the Onon by city tomorrow 📍
| City | tomorrow | Swimming |
|---|---|---|
| Kusocha | +22° | Comfortable for swimming |
| Aksha | +22° | Comfortable for swimming |
| Nizhniy Tsasuchey | +22° | Comfortable for swimming |
| Olovyannaya | +22° | Comfortable for swimming |
🎣 Fishing in cities on the Onon
Water temperature forecast in the Onon tomorrow 📅
Tuesday
18 August
+21°
Computed by a climate model. Water changes slowly — no sharp shifts.
Water temperature chart in the Onon tomorrow 📈
+21°
minimum tomorrow
+21°
maximum tomorrow
→
steady
🏊
Tomorrow: the water will warm to +21° — cool but swimmable.
Water questions tomorrow ❓
What is the water in the Onon tomorrow?
From +21° to +21° by the climate model; trend — steady.
Will the water warm up by the weekend?
On Saturday about +21°.
Can you swim in the Onon tomorrow?
the water will warm to +21° — cool but swimmable.
Water temperature forecast in the Onon tomorrow. 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.