Latest river level information for:
the Thames at Sunbury Lock (upstream data)

4:30pm Wednesday 24 May 2017

Latest level 0.1m

Normal range is 0.06m to 0.30m

Recorded at 4:00pm Wednesday 24 May 2017

View downstream data for this station

Why are there 2 sets of data for this station?

Some monitoring stations are located near to a man-made structure which affects the river's flow characteristics, for example a weir, or lock. For these stations, we provide river levels from both the upstream and downstream sides of the structure.

River levels at this location in the last 5 days

Flooding is possible over 0.30m

What's the highest recorded level here?

Highest recorded level 0.92m on 10 February 2014

This is the highest water level recorded here since the station was opened.

You're missing out. A graph should be visible here.
Upgrade your browser to see and use all the features of this service.

You're missing out. A graph should be visible here.

Javascript must be enabled.

DateTime	Value	Error
1495638000000	0.1	false
1495637100000	0.09	false
1495636200000	0.08	false
1495635300000	0.09	false
1495634400000	0.09	false
1495633500000	0.12	false
1495632600000	0.01	false
1495631700000	0.07	false
1495630800000	0.1	false
1495629900000	0.11	false
1495629000000	0.09	false
1495628100000	0.1	false
1495627200000	0.1	false
1495626300000	0.12	false
1495625400000	0.06	false
1495624500000	0.09	false
1495623600000	0.09	false
1495622700000	0.15	false
1495621800000	0.11	false
1495620900000	0.11	false
1495620000000	0.13	false
1495619100000	0.05	false
1495618200000	0.04	false
1495617300000	0.12	false
1495616400000	0.11	false
1495615500000	0.09	false
1495614600000	0.12	false
1495613700000	0.12	false
1495612800000	0.12	false
1495611900000	0.12	false
1495611000000	0.12	false
1495610100000	0.12	false
1495609200000	0.12	false
1495608300000	0.12	false
1495607400000	0.12	false
1495606500000	0.12	false
1495605600000	0.12	false
1495604700000	0.12	false
1495603800000	0.12	false
1495602900000	0.12	false
1495602000000	0.12	false
1495601100000	0.12	false
1495600200000	0.12	false
1495599300000	0.12	false
1495598400000	0.12	false
1495597500000	0.12	false
1495596600000	0.12	false
1495595700000	0.12	false
1495594800000	0.12	false
1495593900000	0.12	false
1495593000000	0.12	false
1495592100000	0.12	false
1495591200000	0.12	false
1495590300000	0.12	false
1495589400000	0.12	false
1495588500000	0.13	false
1495587600000	0.13	false
1495586700000	0.13	false
1495585800000	0.13	false
1495584900000	0.13	false
1495584000000	0.13	false
1495583100000	0.13	false
1495582200000	0.13	false
1495581300000	0.14	false
1495580400000	0.13	false
1495579500000	0.14	false
1495578600000	0.15	false
1495577700000	0.13	false
1495576800000	0.15	false
1495575900000	0.14	false
1495575000000	0.13	false
1495574100000	0.14	false
1495573200000	0.19	false
1495572300000	0.15	false
1495571400000	0.16	false
1495570500000	0.16	false
1495569600000	0.16	false
1495568700000	0.16	false
1495567800000	0.16	false
1495566900000	0.16	false
1495566000000	0.16	false
1495565100000	0.16	false
1495564200000	0.16	false
1495563300000	0.17	false
1495562400000	0.16	false
1495561500000	0.18	false
1495560600000	0.16	false
1495559700000	0.16	false
1495558800000	0.16	false
1495557900000	0.16	false
1495557000000	0.16	false
1495556100000	0.16	false
1495555200000	0.17	false
1495554300000	0.16	false
1495553400000	0.17	false
1495552500000	0.16	false
1495551600000	0.17	false
1495550700000	0.12	false
1495549800000	0.22	false
1495548900000	0.16	false
1495548000000	0.2	false
1495547100000	0.17	false
1495546200000	0.14	false
1495545300000	0.16	false
1495544400000	0.16	false
1495543500000	0.16	false
1495542600000	0.15	false
1495541700000	0.16	false
1495540800000	0.16	false
1495539900000	0.18	false
1495539000000	0.13	false
1495538100000	0.17	false
1495537200000	0.14	false
1495536300000	0.18	false
1495535400000	0.13	false
1495534500000	0.16	false
1495533600000	0.17	false
1495532700000	0.17	false
1495531800000	0.15	false
1495530900000	0.16	false
1495530000000	0.19	false
1495529100000	0.17	false
1495528200000	0.17	false
1495527300000	0.14	false
1495526400000	0.17	false
1495525500000	0.17	false
1495524600000	0.17	false
1495523700000	0.17	false
1495522800000	0.17	false
1495521900000	0.17	false
1495521000000	0.17	false
1495520100000	0.17	false
1495519200000	0.17	false
1495518300000	0.17	false
1495517400000	0.16	false
1495516500000	0.17	false
1495515600000	0.19	false
1495514700000	0.12	false
1495513800000	0.17	false
1495512900000	0.17	false
1495512000000	0.17	false
1495511100000	0.17	false
1495510200000	0.17	false
1495509300000	0.17	false
1495508400000	0.17	false
1495507500000	0.17	false
1495506600000	0.17	false
1495505700000	0.17	false
1495504800000	0.17	false
1495503900000	0.17	false
1495503000000	0.17	false
1495502100000	0.17	false
1495501200000	0.17	false
1495500300000	0.17	false
1495499400000	0.17	false
1495498500000	0.17	false
1495497600000	0.17	false
1495496700000	0.17	false
1495495800000	0.17	false
1495494900000	0.17	false
1495494000000	0.17	false
1495493100000	0.17	false
1495492200000	0.17	false
1495491300000	0.17	false
1495490400000	0.17	false
1495489500000	0.17	false
1495488600000	0.17	false
1495487700000	0.18	false
1495486800000	0.15	false
1495485900000	0.18	false
1495485000000	0.18	false
1495484100000	0.18	false
1495483200000	0.18	false
1495482300000	0.18	false
1495481400000	0.17	false
1495480500000	0.17	false
1495479600000	0.18	false
1495478700000	0.17	false
1495477800000	0.18	false
1495476900000	0.16	false
1495476000000	0.18	false
1495475100000	0.18	false
1495474200000	0.17	false
1495473300000	0.18	false
1495472400000	0.17	false
1495471500000	0.17	false
1495470600000	0.2	false
1495469700000	0.15	false
1495468800000	0.18	false
1495467900000	0.2	false
1495467000000	0.12	false
1495466100000	0.19	false
1495465200000	0.19	false
1495464300000	0.16	false
1495463400000	0.24	false
1495462500000	0.22	false
1495461600000	0.27	false
1495460700000	0.17	false
1495459800000	0.2	false
1495458900000	0.14	false
1495458000000	0.19	false
1495457100000	0.16	false
1495456200000	0.2	false
1495455300000	0.18	false
1495454400000	0.19	false
1495453500000	0.17	false
1495452600000	0.18	false
1495451700000	0.18	false
1495450800000	0.21	false
1495449900000	0.21	false
1495449000000	0.08	false
1495448100000	0.29	false
1495447200000	0.17	false
1495446300000	0.2	false
1495445400000	0.2	false
1495444500000	0.2	false
1495443600000	0.2	false
1495442700000	0.2	false
1495441800000	0.2	false
1495440900000	0.18	false
1495440000000	0.2	false
1495439100000	0.2	false
1495438200000	0.2	false
1495437300000	0.2	false
1495436400000	0.2	false
1495435500000	0.2	false
1495434600000	0.2	false
1495433700000	0.2	false
1495432800000	0.21	false
1495431900000	0.2	false
1495431000000	0.21	false
1495430100000	0.21	false
1495429200000	0.21	false
1495428300000	0.21	false
1495427400000	0.21	false
1495426500000	0.21	false
1495425600000	0.21	false
1495424700000	0.21	false
1495423800000	0.21	false
1495422900000	0.21	false
1495422000000	0.21	false
1495421100000	0.21	false
1495420200000	0.21	false
1495419300000	0.21	false
1495418400000	0.21	false
1495417500000	0.21	false
1495416600000	0.2	false
1495415700000	0.2	false
1495414800000	0.2	false
1495413900000	0.19	false
1495413000000	0.19	false
1495412100000	0.18	false
1495411200000	0.17	false
1495410300000	0.15	false
1495409400000	0.14	false
1495408500000	0.12	false
1495407600000	0.1	false
1495406700000	0.08	false
1495405800000	0.07	false
1495404900000	0.05	false
1495404000000	0.04	false
1495403100000	0.04	false
1495402200000	0.06	false
1495401300000	0.03	false
1495400400000	0.03	false
1495399500000	0.03	false
1495398600000	0.03	false
1495397700000	0.03	false
1495396800000	0.04	false
1495395900000	0.04	false
1495395000000	0.03	false
1495394100000	0.04	false
1495393200000	0.05	false
1495392300000	0.05	false
1495391400000	0.01	false
1495390500000	0.05	false
1495389600000	0.04	false
1495388700000	0.07	false
1495387800000	0.01	false
1495386900000	0.07	false
1495386000000		true
1495385100000	0.08	false
1495384200000	0.1	false
1495383300000	0.05	false
1495382400000	0.05	false
1495381500000	0.07	false
1495380600000	0.09	false
1495379700000	0.1	false
1495378800000	0.08	false
1495377900000	0.14	false
1495377000000	0.12	false
1495376100000	0.2	false
1495375200000	0.17	false
1495374300000	0.13	false
1495373400000	0.14	false
1495372500000	0.2	false
1495371600000	0.13	false
1495370700000	0.16	false
1495369800000	0.11	false
1495368900000	0.16	false
1495368000000	0.1	false
1495367100000	0.14	false
1495366200000	0.16	false
1495365300000	0.1	false
1495364400000	0.15	false
1495363500000	0.15	false
1495362600000	0.13	false
1495361700000	0.14	false
1495360800000	0.18	false
1495359900000	0.09	false
1495359000000	0.09	false
1495358100000	0.16	false
1495357200000	8.24	false
1495356300000	8.24	false
1495355400000	8.24	false
1495354500000	8.24	false
1495353600000	0.12	false
1495352700000	0.14	false
1495351800000	0.14	false
1495350900000	0.14	false
1495350000000	0.14	false
1495349100000	0.14	false
1495348200000	0.14	false
1495347300000	0.14	false
1495346400000	0.14	false
1495345500000	0.14	false
1495344600000	0.14	false
1495343700000	0.14	false
1495342800000	0.14	false
1495341900000	0.14	false
1495341000000	0.14	false
1495340100000	0.15	false
1495339200000	0.15	false
1495338300000	0.15	false
1495337400000	0.16	false
1495336500000	0.16	false
1495335600000	0.17	false
1495334700000	0.17	false
1495333800000	0.17	false
1495332900000	0.18	false
1495332000000	0.19	false
1495331100000	0.19	false
1495330200000	0.19	false
1495329300000	0.19	false
1495328400000	0.19	false
1495327500000	0.2	false
1495326600000	0.2	false
1495325700000	0.2	false
1495324800000	0.2	false
1495323900000	0.2	false
1495323000000	0.21	false
1495322100000	0.2	false
1495321200000	0.2	false
1495320300000	0.22	false
1495319400000	0.2	false
1495318500000	0.18	false
1495317600000	0.21	false
1495316700000	0.21	false
1495315800000	0.21	false
1495314900000	0.2	false
1495314000000	0.21	false
1495313100000	0.23	false
1495312200000	0.21	false
1495311300000	0.19	false
1495310400000	0.21	false
1495309500000	0.21	false
1495308600000	0.22	false
1495307700000	0.19	false
1495306800000	0.22	false
1495305900000	0.21	false
1495305000000	0.21	false
1495304100000	0.23	false
1495303200000	0.21	false
1495302300000	0.26	false
1495301400000	0.22	false
1495300500000	0.21	false
1495299600000	0.27	false
1495298700000	0.22	false
1495297800000	0.22	false
1495296900000	0.2	false
1495296000000	0.24	false
1495295100000	0.19	false
1495294200000	0.21	false
1495293300000	0.24	false
1495292400000	0.2	false
1495291500000	0.22	false
1495290600000	0.25	false
1495289700000	0.3	false
1495288800000	0.19	false
1495287900000	0.24	false
1495287000000	0.22	false
1495286100000	0.17	false
1495285200000	0.29	false
1495284300000	0.24	false
1495283400000	0.24	false
1495282500000	0.23	false
1495281600000	0.24	false
1495280700000	0.23	false
1495279800000	0.25	false
1495278900000	0.32	false
1495278000000	0.2	false
1495277100000	0.26	false
1495276200000	0.2	false
1495275300000	0.15	false
1495274400000	0.25	false
1495273500000	0.21	false
1495272600000	0.26	false
1495271700000	0.24	false
1495270800000	0.23	false
1495269900000	0.23	false
1495269000000	0.23	false
1495268100000	0.23	false
1495267200000	0.23	false
1495266300000	0.23	false
1495265400000	0.23	false
1495264500000	0.23	false
1495263600000	0.23	false
1495262700000	0.22	false
1495261800000	0.23	false
1495260900000	0.23	false
1495260000000	0.22	false
1495259100000	0.22	false
1495258200000	0.22	false
1495257300000	0.22	false
1495256400000	0.22	false
1495255500000	0.22	false
1495254600000	0.22	false
1495253700000	0.22	false
1495252800000	0.22	false
1495251900000	0.22	false
1495251000000	0.22	false
1495250100000	0.22	false
1495249200000	0.22	false
1495248300000	0.22	false
1495247400000	0.22	false
1495246500000	0.22	false
1495245600000	0.22	false
1495244700000	0.22	false
1495243800000	0.22	false
1495242900000	0.22	false
1495242000000	0.22	false
1495241100000	0.22	false
1495240200000	0.22	false
1495239300000	0.22	false
1495238400000	0.22	false
1495237500000	0.21	false
1495236600000	0.22	false
1495235700000	0.22	false
1495234800000	0.22	false
1495233900000	0.22	false
1495233000000	0.22	false
1495232100000	0.22	false
1495231200000	0.22	false
1495230300000	0.21	false
1495229400000	0.22	false
1495228500000	0.19	false
1495227600000	0.22	false
1495226700000	0.21	false
1495225800000	0.23	false
1495224900000	0.19	false
1495224000000	0.21	false
1495223100000	0.21	false
1495222200000	0.21	false
1495221300000	0.2	false
1495220400000	0.25	false
1495219500000	0.21	false
1495218600000	0.21	false
1495217700000	0.22	false
1495216800000	0.21	false
1495215900000	0.21	false
1495215000000	0.22	false
1495214100000	0.21	false
1495213200000	0.21	false
1495212300000	0.22	false
1495211400000	0.22	false
1495210500000	0.21	false
1495209600000	0.22	false
1495208700000	0.21	false
1495207800000	0.22	false
1495206900000	0.21	false

Other measuring stations in this area

• Monitoring station
• Monitoring station with flood risk
• Monitoring station unavailable
• Location of the place you entered

Zoom into the map and select a river or sea level station to see more information.

Key information

• Station name: Sunbury Lock (upstream)
• Station ID: 7245
• River name: Thames
• Typical range: 0.06m to 0.30m
• Highest level on record: 0.92m on 10 February 2014
• Site datum: 8.10mAOD (what does this mean?)

How are river levels measured?

The Environment agency uses a network of monitoring stations across the country. Each one has its own datum - a height in metres fixed relative to mean sea level. This height is expressed as metres above ordnance datum (mAOD). The river levels we provide for each monitoring station are all relative to its site datum.

If we didn't do this, we'd show some very high measurements, which could cause confusion. By using a local site datum, the river levels are easier to understand, especially by users familiar with the data from a particular monitoring station.

A river's height above ordnance datum can be seen by adding the site datum to the river level.

How often are river and sea levels measured?

The data we collect is fed into this service once or twice a day under typical conditions. We increase this frequency whenever there's a greater risk of flooding.

How might river levels affect flood risk?

Typical range

This is the usual range of river levels at this station, based on historical data.

Above typical

This means that flooding is possible because river levels at this station are currently higher than usual.
Many factors can influence the possibility of flooding - river levels are only one indicator. Always check if there's a flood warning in place at a particular location.

Below typical

This means that river levels at this station are currently lower than usual.
Drought or water management measures may be in place. Please check for the latest information on water resources and restrictions in your area.

You're missing out. A map should be visible here.
Upgrade your browser to see and use all the features of this service.

You're missing out. A map should be visible here.

Javascript must be enabled.

Flood information service for England

View your property's long term risk of flooding

View the current flood situation in England