Low: Rethem below mean low water (MNW).

Rethem gauge Aller · km 82.3

Rethem gauge (Aller) on 23/10/2026, 21:15 CEST: 50 cm – below mean low water (MNW). 24 h trend: +6 cm. Updated 2026-10-23 · Source: PEGELONLINE

Facts
Water level	50 cm	Discharge	Not measured at this gauge
Status	low	Water temperature	Not measured at this gauge
Gauge datum	14.31 m. ü. NN

Water level

50 cm low

Discharge: Not measured at this gauge
24 h trend: ↑ +6 cm
Water temperature: Not measured at this gauge

PEGELONLINE (WSV), DL-DE Zero 2.0 · Measured 23/10/2026, 21:15 CEST · every 15 minutes

Last 7 days

PEGELONLINE (WSV), DL-DE Zero 2.0 · raw data, unverified

Activity outlook

Shippingrestricted
- ✓ no flood (below HSW)
- ✗ not below mean low water (MNW)
- ✓ level not high (below MHW)
Paddlingtake care
- ✓ no flood (below HSW)
- ✓ level not high (below MHW)
- ✗ not below mean low water (MNW)
- ✓ change over 24 h ≤ 20 cm
Fishingsuitable
- ✓ no flood (below HSW)
- ✓ level not high (below MHW)
- ✓ change over 24 h ≤ 30 cm
Swimmingnot enough data
- ✓ no flood (below HSW)
- ✓ level not high (below MHW)
- ? water temperature ≥ 15 °C
- ? water temperature ≥ 18 °C
- ✓ EU bathing site ≤ 5 km rated excellent/good
- ✗ not a federal waterway with shipping
Status: low · 24 h trend: +6 cm · Rethemer Faehrsee Campingplatz (Excellent, 1.6 km)

Calculated by fixed rules from official data. For orientation only – not a safety guarantee. Always check official warnings and conditions on site. See the rules

🔔 Notify me

Paddling: access points & locks

Put-ins and slipways (≤ 5 km)

Slipway: Slipanlage Rethem 0.8 km
Canoe put-in: Rethem 0.8 km
Slipway 3.6 km

Marinas (≤ 10 km)

Marina: Anlegestelle Rethem 0.7 km
Marina: Marina Campingplatz Rittergut Frankenfeld 3.6 km
Marina: WSC Westen 7.8 km
Marina: Anleger Eilte 8 km

Straight-line distance from the gauge. Entries from OpenStreetMap, not officially verified; check lock hours with the WSV.

Fishing: Niedersachsen

Closed season today: Bachforelle, Lachs

Fishing rules Niedersachsen →

State derived from the gauge location; on border waters check both states. Checked 2026-10-18

Gauges up- and downstream

↑ upstream Marklendorf km 38.5 112 cm normal
↑ upstream Ahlden km 58.7 22 cm low
↓ downstream Eitze km 107.8 233 cm low

Aller: gauges →

Records & flood chronicle

Highest on record (HHW): 452 cm · 9 Jan 2003
Lowest on record (NNW): 8 cm · 6 Sept 2022
Today vs. record: 402 cm below HHW, 42 cm above NNW

Documented floods on this river (HANZE)

4 Jun 1981: flash flood, 2 deaths, 101 m € losses (2020 prices)
8 Mar 1981: river, 3 deaths, 101 m € losses (2020 prices)
14 Jul 1956: river, 471 m € losses (2020 prices)

Flood chronicle Germany & Norway →

Records: PEGELONLINE (WSV, DL-DE Zero 2.0) · HANZE v2.1.1 (CC BY 4.0)

Water body status (EU Water Framework Directive)

ALLER DERW_DENI_22001
Ecological potential: moderate (2018--2019) · Chemical: failing to achieve good · heavily modified/artificial
Good status expected: after 2027

Official assessment of the water body at this gauge from the 2022 river basin management plans (WFD target: at least “good”). It rates the whole water body, not today’s water quality.

Location

The map loads on demand. The full list is below.

▼low●normal▲high◆above HSW○no thresholds●Put-in●Lock●Marina

FAQ

What is the current water level at Rethem?

50 cm (low), 23/10/2026, 21:15 CEST. Source: PEGELONLINE.

What does the status at Rethem mean?

The status compares the current level with the official reference values MNW (mean low water) and MHW (mean high water); HSW is the highest navigable water level.

Sources & licences

Water level/Discharge/Water temperature: PEGELONLINE (WSV), DL-DE Zero 2.0