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9.99

Thirlmere Reservoir (Spillway level = 16.55m)

Thirlmere Reservoir ⚙ Structure
Derwent West Cumbria and Duddon catchment • Thirlmere Reservoir • Cumberland • ID: 750604 • Level
(31m ago) • 3 readings/hr • 108 views

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Not an emergency service — if in danger call 999. Alerts rely on EA/SEPA data and are best-efforts. Terms

Current Level
9.992 m
▬ Steady
24h Max
10.083 m
24h Min
9.992 m
Typical Range
10.09 - 16.68
m
Highest Recorded
18.04 m
5 Dec 2015
Since Oct 1997
Current level is 55% of this
🚽 Sewage overflows nearby

Recent Water Levels

🌍 floodradar.co.uk
1 day

Flood predictions aren't generated for lock / structure gauges — their levels are driven by gate operation, not by catchment rainfall, so the forecast models would have no skill here.

Recent Readings

Falling · -2 cm over 6h
23 Aug 23:15 ▼ -0.2 cm 9.992 m
23 Aug 23:00 ▬ steady 9.994 m
23 Aug 22:45 ▬ steady 9.994 m
23 Aug 21:30 ▼ -0.4 cm 9.995 m
23 Aug 21:15 ▬ steady 9.999 m
23 Aug 21:00 ▬ steady 9.999 m
23 Aug 20:45 ▼ -0.2 cm 10.000 m
23 Aug 20:30 ▬ steady 10.002 m
23 Aug 20:15 ▬ steady 10.002 m
23 Aug 20:00 ▬ steady 10.002 m
23 Aug 19:45 ▬ steady 10.002 m
23 Aug 19:30 ▬ steady 10.003 m
23 Aug 19:15 ▼ -0.1 cm 10.004 m
23 Aug 19:00 ▼ -0.3 cm 10.005 m
23 Aug 18:45 ▼ -0.2 cm 10.008 m
23 Aug 18:30 ▬ steady 10.010 m
23 Aug 18:15 ▬ steady 10.011 m
23 Aug 18:00 ▬ steady 10.011 m
23 Aug 17:45 ▼ -0.2 cm 10.011 m
23 Aug 17:30 10.013 m

Rainfall & Weather

Loading rainfall and weather data...

Flood history near this gauge

Official Environment Agency warnings issued since 2008 for the 15 flood areas linked to this gauge (nearest 5.1 km away).

11severe warnings 206flood warnings 350flood alerts

Most recent flood warning: 28 Feb 2026Keswick Campsite

Year by year
YearSevereWarningsAlerts
2026 0 3 19
2025 0 10 20
2024 0 9 20
2023 0 15 17
2022 0 8 14
2021 0 13 17
2020 0 22 15
2019 0 14 20
2018 0 6 10
2017 0 10 21
2016 0 6 16
2015 11 27 24
2014 0 7 13
2013 0 5 16
2012 0 8 20
2011 0 9 16
2010 0 8 14
2009 0 15 24
2008 0 11 34

Warnings apply to a whole flood area, not necessarily this exact spot. Years before 2006 aren't covered by the EA's historic record. See also the Thirlmere Reservoir flood history.

Nearby Stations

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Station Details

  • Station Reference: 750604
  • EA Gauge ID: 750604-level-stage-i-15_min-m
  • Parameter: Level
  • Unit: m
  • Typical rise rate: 4 cm/hr (p95 sustained over 90 days)
  • Typical data delay: ~22 min (measured reading→publication lag)
  • Tidal: No
  • Lock / structure: ⚙ Yes — lock, weir, sluice or pump
  • Catchment Area: Derwent West Cumbria and Duddon
  • Typical Range: 10.088 – 16.680 m
  • EA Cross-check: 9.99 m (EA at 23 Aug 23:15)

Geographic coordinates may reflect the access point for the gauge, and not the precise location in the watercourse that it is taking readings from.

Frequently asked questions

Is the Thirlmere Reservoir at Thirlmere Reservoir (Spillway level = 16.55m) flooding today?

The current level is 9.99m, which is below the typical range. Flooding is very unlikely at this level.

Is the river level rising or falling at Thirlmere Reservoir (Spillway level = 16.55m)?

Based on the most recent readings, the level is currently steady. The chart above shows the last 7 days of measurements, updated roughly every 15 minutes.

What is a normal level for the Thirlmere Reservoir at Thirlmere Reservoir (Spillway level = 16.55m)?

The typical range at this station is 10.09m to 16.68m, based on Environment Agency historical data. Levels above 16.68m are higher than usually seen and may indicate a flood risk.

How often is this river level data updated?

Readings are taken by the Environment Agency gauge roughly every 15 minutes and FloodRadar refreshes its data continuously, so the level shown is normally less than an hour old.

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📮 Flood risk by postcode near this gauge

Postcodes within 5 km with properties in the Environment Agency’s rivers-and-sea flood-risk bands:

Check any UK postcode’s flood risk →

🏠 Buying or renting around here? Get the Property Flood-Risk Report for any English postcode — official risk band, floods since 1946, warning history, river behaviour and nearby storm overflows. £19 one-off. Learn more →