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 Lake Ilmen +18°. Swimming season — from June to September.
Water temperature map of Lake Ilmen
ColderWarmer
Water temperature in Lake Ilmen by city tomorrow 📍
| City | tomorrow | Swimming |
|---|---|---|
| Velikiy Novgorod | +18° | Comfortable for swimming |
🎣 Fishing in cities on Lake Ilmen
Water temperature forecast in Lake Ilmen tomorrow 📅
Thursday
10 September
+18°
Computed by a climate model. Water changes slowly — no sharp shifts.
Water temperature chart in Lake Ilmen tomorrow 📈
+18°
minimum tomorrow
+19°
maximum tomorrow
→
steady
🏊
Tomorrow: up to +19° — for hardy swimmers.
Water questions tomorrow ❓
What is the water in Lake Ilmen tomorrow?
From +18° to +19° by the climate model; trend — steady.
Will the water warm up by the weekend?
On Saturday about +19°.
Can you swim in Lake Ilmen tomorrow?
up to +19° — for hardy swimmers.
Water temperature forecast in Lake Ilmen 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.