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.
Cool for swimming. Now in the Ar +16°. Swimming season — June and July.
Water temperature map of the Ar
ColderWarmer
Water temperature in the Ar by city for the week 📍
+16°
Arbryuk
+16°
Altenar
+16°
Berg (Arvayler)
+16°
Blankenkhaym
+16°
Dernau
+16°
Ikskhaym
+16°
Bad Neuenahr-Ahrweiler
+17°
Bad-Khenningen
+17°
Bad-Brayzig
+17°
Remagen
+17°
Dattenberg
+16°
Kasbakh-Olenberg
| City | for the week | Swimming |
|---|---|---|
| Arbryuk | +16° | Cool for swimming |
| Altenar | +16° | Cool for swimming |
| Berg (Arvayler) | +16° | Cool for swimming |
| Blankenkhaym | +16° | Cool for swimming |
| Dernau | +16° | Cool for swimming |
| Ikskhaym | +16° | Cool for swimming |
| Bad Neuenahr-Ahrweiler | +16° | Cool for swimming |
| Bad-Khenningen | +17° | Cool for swimming |
| Bad-Brayzig | +17° | Cool for swimming |
| Remagen | +17° | Cool for swimming |
| Dattenberg | +17° | Cool for swimming |
| Kasbakh-Olenberg | +16° | Cool for swimming |
| Loybsdorf | +17° | Cool for swimming |
| Lints-na-Reyne | +17° | Cool for swimming |
| Okkenfels | +16° | Cool for swimming |
| Erpel | +16° | Cool for swimming |
| Unkel | +16° | Cool for swimming |
| Sinzig | +17° | Cool for swimming |
🎣 Fishing in cities on the Ar
Water temperature forecast in the Ar for the week 📅
Monday
17 August
+16°
Tuesday
18 August
+16°
Wednesday
19 August
+16°
Thursday
20 August
+16°
Friday
21 August
+16°
Saturday
22 August
+16°
Sunday
23 August
+16°
Computed by a climate model. Water changes slowly — no sharp shifts.
Water temperature chart in the Ar for the week 📈
+16°
minimum for the week
+16°
maximum for the week
→
steady
🏊
For the week: up to +16° — for hardy swimmers.
This weekend 🏖️
Saturday, 22 August · water +16° · cool for swimming
Sunday, 23 August · water +16° · cool for swimming
Water questions for the week ❓
What is the water in the Ar for the week?
From +16° to +16° by the climate model; trend — steady.
Will the water warm up by the weekend?
On Saturday about +16°.
Can you swim in the Ar for the week?
up to +16° — for hardy swimmers.
Water temperature forecast in the Ar 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.