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0.03

Temple Lock

Thames ⚙ Structure
Thames from Hurley to Teddington catchment • Marlow • Buckinghamshire • ID: 2498TH • Level
(37m ago) • 4 readings/hr • 143 views

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

Current Level
0.031 mASD
▬ Steady
24h Max
0.044 mASD
24h Min
0.017 mASD
Typical Range
0.05 - 0.21
mASD
Highest Recorded
0.32 mASD
EA official record
0.35 in our data (since Jun 2025)
Current level is 10% 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

Steady over 6h
10 Oct 01:30 ▬ steady 0.031 mASD
10 Oct 01:15 ▬ steady 0.031 mASD
10 Oct 01:00 ▬ steady 0.031 mASD
10 Oct 00:45 ▲ +0.1 cm 0.031 mASD
10 Oct 00:30 ▬ steady 0.030 mASD
10 Oct 00:15 ▼ -0.1 cm 0.030 mASD
10 Oct 00:00 ▬ steady 0.031 mASD
09 Oct 23:45 ▬ steady 0.031 mASD
09 Oct 23:30 ▬ steady 0.031 mASD
09 Oct 22:30 ▲ +0.1 cm 0.031 mASD
09 Oct 22:15 ▬ steady 0.030 mASD
09 Oct 22:00 ▼ -0.1 cm 0.030 mASD
09 Oct 21:45 ▬ steady 0.031 mASD
09 Oct 21:30 ▼ -0.1 cm 0.031 mASD
09 Oct 21:15 ▲ +0.1 cm 0.032 mASD
09 Oct 21:00 ▬ steady 0.031 mASD
09 Oct 20:45 ▬ steady 0.031 mASD
09 Oct 20:30 ▲ +0.1 cm 0.031 mASD
09 Oct 20:15 ▼ -0.1 cm 0.030 mASD
09 Oct 20:00 0.031 mASD

Station Details

  • Monitoring Station: Temple Lock
  • Watercourse: River Thames
  • Nearest Town: Marlow
  • County: Buckinghamshire
  • Coordinates: 51°33'7"N 0°47'38"W (51.552057, -0.793965)
  • Open in: Google Maps · Apple Maps (opens your maps app)
  • Date Opened: 13 Jun 2025
  • Status: Active
  • Station Type: River level station
Technical details: references, datum, range, flow archive
  • Station Reference: 2498TH
  • RLOI id: 9659 (the EA's check-for-flooding station id)
  • EA Gauge ID: 2498TH-level-stage-i-15_min-mASD
  • Parameter: Level
  • Unit: mASD
  • 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: Thames from Hurley to Teddington
  • Typical Range: 0.051 – 0.208 mASD
  • EA Cross-check: 0.03 mASD (EA at 10 Oct 01:15)

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

Nearby Stations

Gauges connected to this river, and others nearby. A distance “by river” follows the river on the map; any other is in a straight line.

Connected upstream

Connected downstream

Same river system, separate branch

Nearby

Distances by river: OS Open Rivers. Contains OS data © Crown copyright and database rights 2026.

💧 Storm overflows upstream of this gauge

Storm overflows whose water reaches this gauge on the mapped river network, nearest first by distance along the river. The status is each water company's monitor: it says whether an overflow is discharging, not how much or what it contains.

106 storm overflows are traced upstream of this gauge, the nearest 6.5 km away along the river. 0 report discharging now, 104 report not discharging, and for 2 the monitor is offline or has not reported, so their status is not known.

💧
Thames Water · into River Thames · 6.5 km upstream along the river
0 spills · 0 hours in 2025
Not discharging now · last
💧
Thames Water · into Fawley Court Stream · 10.5 km upstream along the river
0 spills · 0 hours in 2025
Not discharging now · last
Placed on the river by its position alone.
💧
Thames Water · into Thames · 10.9 km upstream along the river
4 spills · 10 hours in 2025
Not discharging now · last
💧
Thames Water · into River Loddon · 18.2 km upstream along the river
12 spills · 121 hours in 2025
Not discharging now · last
💧
Thames Water · into Ashridge Stream · 29.1 km upstream along the river
11 spills · 136 hours in 2025
Not discharging now · last
Placed on the river by its position alone.
💧
Thames Water · into Foudry Brook · 29.1 km upstream along the river
14 spills · 169 hours in 2025
Not discharging now · last
💧
Thames Water · into Barkham Brook · 32.1 km upstream along the river
28 spills · 251 hours in 2025
Not discharging now · last
💧
Thames Water · into Foudry Brook · 38.8 km upstream along the river
40 spills · 689 hours in 2025
Not discharging now · last

98 more further upstream, up to 173.5 km away along the river.

1 other overflow within 6 km is downstream of this gauge or on another branch of the river network, so it is not listed.

These are the water companies' monitor statuses; a spill does not by itself explain a change in the gauge level. River connections and distances are traced on OS Open Rivers (edition 2026-04), which leaves out many small channels. Explore the sewage map →

Contains OS data © Crown copyright and database rights 2026.

Rainfall & Weather

Loading rainfall and weather data...

How often this river runs high

Days this gauge reached its typical high of 0.21 m, year by year. This year so far: 21 days.

2026 21 days so far
2025 18 days patchy data

Counted from each day's highest reading. Days with missing or implausible readings are left out, so a year marked patchy may have run high more often than shown.

Flood history near this gauge

Official Environment Agency warnings issued since 2011 for the 13 flood areas linked to this gauge (nearest 0.9 km away).

57flood warnings 208flood alerts

Most recent flood warning: 8 Feb 2026 — River Thames for Shiplake, Lower Shiplake and Wargrave

Year by year
YearWarningsAlerts
2026 1 20
2025 0 18
2024 13 27
2023 0 24
2022 0 1
2021 5 9
2020 4 20
2019 1 8
2018 1 12
2017 0 4
2016 0 16
2015 0 5
2014 18 9
2013 5 18
2012 9 15
2011 0 2

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 Marlow flood history.

Flood areas linked to this gauge

Flood warnings and alerts are issued for whole areas. These are the 13 areas linked to this gauge, nearest first.

Show 5 more

Frequently asked questions

Is the River Thames at Temple Lock flooding today?

The current level is 0.03m, which is below the typical range. Flooding is very unlikely at this level.

Is the river level rising or falling at Temple Lock?

Based on the most recent readings, the level is currently steady. The chart above shows the last 12 hours of measurements by default (up to 7 days), updated roughly every 15 minutes.

What is a normal level for the River Thames at Temple Lock?

The typical range at this station is 0.05m to 0.21m, based on Environment Agency historical data. Levels above 0.21m are higher than usually seen and may indicate a flood risk.

How often is this river level data updated?

Readings are supplied by the Environment Agency gauge. FloodRadar checks for updates roughly every 15 minutes; the timestamp above shows how recent the latest available reading is.

Embed this gauge on your website

Free live river-level widget — ideal for parish councils, angling clubs and local sites. Updates automatically.

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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, recorded floods, warning history, river behaviour and nearby storm overflows. £19 one-off. Learn more →