BrrChecker

Oste water temperature

Oste, Achthöfener Fleth Siel · River

The current water temperature at Oste is 17.1 °C (as of September 20, 2026, source: PEGELONLINE).

A river can change temperature within hours — snowmelt, rain or power-plant operations show up immediately. That is why the measured value counts here, not an estimate.

17.1 °C
Measured: September 20, 2026 · continuously updated
💧 Water 17.1° · ☀️ Air 16.7°
Temperature trend of recent weeks
Oste
Photo: Ajepbah · CC BY-SA 3.0 · Wikimedia Commons

Measurement series & statistics

This measurement series includes 707 data points since July 22, 2026.

Lowest recorded value: 12.3 °C on September 7, 2026 · highest value: 29.4 °C on August 4, 2026.

In September, temperatures have ranged between 12.3 °C and 23.1 °C.

The current value is 0.7 °C below the September average of this series.

Nearby waters

More measuring points: Oste

Frequently asked questions

Can you swim at Oste right now?
The current water temperature is 17.1 °C. See live swimming conditions, weather and quality in the BrrChecker app.

How warm is the water at Oste?
Currently 17.1 °C (updated continuously).

How warm is at Oste in September?
In September, the water temperature recently averaged 17.8 °C.

When is the water warmest at Oste?
Across the measurement record, August is on average the warmest month (20.3 °C).

Open in the BrrChecker app

← All waters · Warmest rivers today · Water temperature in Germany