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 for the week 📍
| City | for the week | 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 for the week 📅
Tuesday
18 August
+21°
Wednesday
19 August
+21°
Thursday
20 August
+21°
Friday
21 August
+21°
Saturday
22 August
+21°
Sunday
23 August
+21°
Monday
24 August
+21°
Computed by a climate model. Water changes slowly — no sharp shifts.
Water temperature chart in the Onon for the week 📈
+21°
minimum for the week
+21°
maximum for the week
→
steady
🏊
For the week: the water will warm to +21° — cool but swimmable.
This weekend 🏖️
Saturday, 22 August · water +21° · comfortable for swimming
Sunday, 23 August · water +21° · comfortable for swimming
Water questions for the week ❓
What is the water in the Onon for the week?
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 for the week?
the water will warm to +21° — cool but swimmable.
Water temperature forecast in the Onon for the week. 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.