| HackbridgeRiver gauge, River Wandle | 1.12 m | Lowest on record | −0.01 m | 44 min ago |
| Kydbrook CloseRiver gauge, Kyd Brook | 0.41 m | Lowest on record | ±0 | 44 min ago |
| WhetstoneRiver gauge, Dollis Brook | 0.01 m | Lowest on record | ±0 | 44 min ago |
| Brent, Monks ParkRiver gauge, River Brent | 0.05 m | Very low | −0.01 m | 44 min ago |
| Catford HillRiver gauge, River Ravensbourne | 0.06 m | Very low | −0.01 m | 44 min ago |
| Chinbrook ParkRiver gauge, River Quaggy | 0.02 m | Very low | −0.02 m | 44 min ago |
| Enfield, Albany ParkRiver gauge, Turkey Brook | 0.06 m | Very low | −0.01 m | 44 min ago |
| Enfield, Ordance RoadRiver gauge, Small River Lee | 0.08 m | Very low | −0.05 m | 44 min ago |
| Greenford, Costons LaneRiver gauge, River Brent | 0.11 m | Very low | −0.15 m | 44 min ago |
| Harrow, Village WayRiver gauge, Yeading Brook | 0.06 m | Very low | −0.01 m | 44 min ago |
| Ickenham, Swakeleys RoadRiver gauge, River Pinn | 0.55 m | Very low | −0.02 m | 44 min ago |
| Kenton LaneRiver gauge, Wealdstone Brook | 0.12 m | Very low | +0.01 m | 44 min ago |
| Lea BridgeRiver gauge, River Lee | 5.86 m | Very high | ±0 | 44 min ago |
| Pinner, Moss CloseRiver gauge, River Pinn | 0.14 m | Very low | ±0 | 44 min ago |
| Powys LaneRiver gauge, Pymmes Brook | 0.64 m | Very low | ±0 | 44 min ago |
| RomfordRiver gauge, River Rom | 0.34 m | Very low | ±0 | 44 min ago |
| Stanmore, Wolverton RoadRiver gauge, Edgware Brook | 0.06 m | Very low | +0.11 m | 44 min ago |
| Teddington LockRiver gauge, River Thames | −0.09 m | Very low | −0.03 m | 44 min ago |
| Trowlock IslandRiver gauge, River Thames | 4.31 m | Very low | ±0 | 44 min ago |
| UxbridgeRiver gauge, River Pinn | 0.03 m | Very low | −0.05 m | 44 min ago |
| Waddon PondsRiver gauge, River Wandle | −0.10 m | Very low | −0.01 m | 44 min ago |
| WalthamstowRiver gauge, Ching Brook | 1.02 m | Very low | −0.02 m | 44 min ago |
| Waxwell LaneRiver gauge, River Pinn | 0.15 m | Very low | −0.01 m | 8 hours ago |
| WembleyRiver gauge, Wealdstone Brook | 0.06 m | Very low | ±0 | 44 min ago |
| Winsford RoadRiver gauge, River Pool | 0.06 m | Very low | −0.01 m | 44 min ago |
| Woodhall AvenueRiver gauge, River Pinn | 0.18 m | Very low | −0.01 m | 44 min ago |
| YiewsleyRiver gauge, Frays River | 0.73 m | Very low | −0.02 m | 44 min ago |
| Abercairn RoadRiver gauge, River Graveney | 0.87 m | Low | ±0 | 44 min ago |
| Beckenham ParkRiver gauge, River Ravensbourne | 0.51 m | Low | −0.01 m | 44 min ago |
| Brent CrossRiver gauge, River Brent | 0.09 m | Low | −0.01 m | 44 min ago |
| BromleyRiver gauge, River Ravensbourne | 0.03 m | Low | ±0 | 44 min ago |
| Bromley SouthRiver gauge, River Ravensbourne | 0.05 m | Low | ±0 | 44 min ago |
| Carshalton PondsRiver gauge, River Wandle | 0.07 m | Low | ±0 | 44 min ago |
| ColindaleRiver gauge, Silk Stream | 0.12 m | Low | −0.01 m | 59 min ago |
| Edgware, Deans BrookRiver gauge, Deans Brook | 0.80 m | High | ±0 | 44 min ago |
| Edmonton GreenRiver gauge, Salmon Brook | 0.06 m | Low | −0.01 m | 44 min ago |
| Edmonton, Silver StreetRiver gauge, Pymmes Brook | 0.03 m | Low | −0.01 m | 44 min ago |
| Enfield, The ChineRiver gauge, Salmon Brook | 0.96 m | Low | +0.01 m | 1 hour ago |
| Hall PlaceRiver gauge, River Cray | 0.02 m | Low | ±0 | 44 min ago |
| Hampstead SuburbRiver gauge, Mutton Brook | 0.80 m | Low | −0.01 m | 44 min ago |
| Hazelmere RoadRiver gauge, Kyd Brook | 0.56 m | Low | −0.01 m | 44 min ago |
| Hornchurch Bretons FarmRiver gauge, River Beam | 0.09 m | Low | −0.01 m | 44 min ago |
| Kingston HogsmillRiver gauge, Hogsmill River | 0.15 m | Low | −0.01 m | 44 min ago |
| Lower CamdenRiver gauge, Kyd Brook | 0.88 m | Low | −0.01 m | 44 min ago |
| Magpie Hall LaneRiver gauge, River Ravensbourne | 0.97 m | High | ±0 | 44 min ago |
| Morden ParkRiver gauge, Pyl Brook | 0.48 m | Low | ±0 | 44 min ago |
| Motspur ParkRiver gauge, Beverley Brook | 0.90 m | Low | +0.01 m | 44 min ago |
| New MaldenRiver gauge, Beverley Brook | 0.77 m | Low | −0.01 m | 44 min ago |
| Northholt, Yeading EastRiver gauge, Yeading Brook (Eastern Arm) | 0.03 m | Low | ±0 | 44 min ago |
| Pinner, Eastcote RoadRiver gauge, River Pinn | 0.35 m | Low | ±0 | 44 min ago |
| RedbridgeRiver gauge, River Roding | 0.12 m | Low | ±0 | 13 hours ago |
| RuislipRiver gauge, River Pinn | 0.15 m | Low | −0.01 m | 59 min ago |
| Upper Elmers EndRiver gauge, St James Stream | 0.37 m | High | −0.01 m | 44 min ago |
| Wandle Park Side ChannelRiver gauge, River Wandle | 0.23 m | High | −0.02 m | 44 min ago |
| West DraytonRiver gauge, River Colne | 0.41 m | Low | −0.01 m | 44 min ago |
| Woodlands RoadRiver gauge, Kyd Brook | 1.17 m | High | −0.01 m | 44 min ago |
| Worcester ParkRiver gauge, Beverley Brook | 1.01 m | Low | ±0 | 44 min ago |
| Worcester RoadRiver gauge, Hogsmill River | 1.18 m | High | ±0 | 44 min ago |
| BarnesRiver gauge, Beverley Brook | 1.39 m | Normal | −0.01 m | 44 min ago |
| BeckenhamRiver gauge, The Beck | 0.45 m | Normal | −0.02 m | 44 min ago |
| Beddington ParkRiver gauge, River Wandle | 0.24 m | Normal | ±0 | 44 min ago |
| Bishops AvenueRiver gauge, River Ravensbourne | 0.55 m | Normal | ±0 | 44 min ago |
| ChingfordRiver gauge, Ching Brook | 0.20 m | Normal | ±0 | 44 min ago |
| Collier RowRiver gauge, River Rom | 0.37 m | Normal | −0.01 m | 44 min ago |
| Cranford ParkRiver gauge, River Crane | 0.07 m | Normal | +0.01 m | 44 min ago |
| CrayfordRiver gauge, River Cray | 0.14 m | Normal | −0.04 m | 44 min ago |
| Edgware HospitalRiver gauge, Silk Stream | 0.65 m | Normal | ±0 | 44 min ago |
| Gaynes ParkRiver gauge, River Ingrebourne | 0.12 m | Normal | −0.01 m | 44 min ago |
| Gosshill RoadRiver gauge, Kyd Brook | 0.53 m | Normal | ±0 | 44 min ago |
| HanwellRiver gauge, River Brent | 0.85 m | Normal | −0.07 m | 44 min ago |
| Harold ParkRiver gauge, River Ingrebourne | 0.95 m | Normal | −0.01 m | 44 min ago |
| Harrow, Thistledene AvenueRiver gauge, The Roxbourne | 0.04 m | Normal | ±0 | 44 min ago |
| Hayes LaneRiver gauge, River Ravensbourne | −0.05 m | Normal | −0.01 m | 44 min ago |
| Hillingdon, Charville LaneRiver gauge, Yeading Brook | 0.44 m | Normal | −0.08 m | 44 min ago |
| Hillingdon, Gutteridge WoodRiver gauge, Yeading Brook | 0.22 m | Normal | −0.11 m | 44 min ago |
| Howletts Lane, RuislipRiver gauge, Cannon Brook | 0.06 m | Normal | −0.02 m | 13 hours ago |
| Kings CollegeRiver gauge, Pyl Brook | 0.40 m | Normal | −0.14 m | 34 hours ago |
| KingstonRiver gauge, River Thames | 4.30 m | Normal | −0.03 m | 44 min ago |
| Longley RoadRiver gauge, River Graveney | 0.06 m | Normal | −0.01 m | 44 min ago |
| Manor House GardensRiver gauge, River Quaggy | 0.04 m | Normal | −0.02 m | 44 min ago |
| Marsh FarmRiver gauge, River Crane | 0.04 m | Normal | ±0 | 44 min ago |
| Molesey LockRiver gauge, River Thames | 0.15 m | Normal | +0.01 m | 44 min ago |
| New BarnetRiver gauge, Pymmes Brook | 0.13 m | Normal | ±0 | 44 min ago |
| North CheamRiver gauge, Pyl Brook | 1.03 m | Normal | −0.01 m | 44 min ago |
| North FinchleyRiver gauge, Dollis Brook | 0.26 m | Normal | ±0 | 44 min ago |
| Pinner, Avenue RoadRiver gauge, River Pinn | 0.14 m | Normal | −0.01 m | 44 min ago |
| Seven Kings ParkRiver gauge, Loxford Water | 0.06 m | Normal | ±0 | 5 days ago |
| SummerstownRiver gauge, River Wandle | 1.00 m | Normal | −0.02 m | 44 min ago |
| Sweeps LaneGroundwater well | 43.59 m | Normal | ±0 | 39 min ago |
| Thornton HeathRiver gauge, Norbury Brook | 0.99 m | Normal | ±0 | 44 min ago |
| Uxbridge, Hercies RoadRiver gauge, River Pinn | 0.73 m | Normal | −0.02 m | 44 min ago |
| Uxbridge, Philpots BridgeRiver gauge, River Pinn | 0.75 m | Normal | −0.09 m | 44 min ago |
| Walthamstow, Low HallRiver gauge, River Lee | 0.04 m | Normal | −0.01 m | 44 min ago |
| Wandle Park Main ChannelRiver gauge, River Wandle | 0.29 m | Normal | −0.01 m | 44 min ago |
| Wimbledon CommonRiver gauge, Beverley Brook | 0.20 m | Normal | −0.01 m | 44 min ago |
| Yeading, Brookside RoadRiver gauge, Yeading Brook | 0.14 m | Normal | −0.12 m | 44 min ago |
| Arabella DriveRiver gauge | 0.02 m | No reference yet | ±0 | 44 min ago |
| Barking BarrierTidal gauge | −1.56 m | No reference yet | +0.04 m | 44 min ago |
| Barking BarrierTidal gauge | −1.76 m | No reference yet | +0.01 m | 44 min ago |
| Barking BarrierTidal gauge | −1.69 m | No reference yet | +0.09 m | 44 min ago |
| Barking BarrierrTidal gauge | −1.55 m | No reference yet | −0.03 m | 44 min ago |
| Beam Auto Sluice FDRiver gauge | −0.83 m | No reference yet | −0.07 m | 44 min ago |
| BrentfordRiver gauge, River Brent | 0.18 m | No reference yet | −0.11 m | 44 min ago |
| Bury Farm FSA FDRiver gauge | 6.83 m | No reference yet | ±0 | 44 min ago |
| CharltonTidal gauge, Thames Tideway | −1.47 m | No reference yet | +0.23 m | 44 min ago |
| Crane Tidal Gates FWSRiver gauge | 1.33 m | No reference yet | ±0 | 44 min ago |
| Dartford Creek Barrier DRTidal gauge | −1.53 m | No reference yet | +0.02 m | 44 min ago |
| Dartford Creek Barrier URTidal gauge | −1.52 m | No reference yet | +0.04 m | 44 min ago |
| Downham LaneRiver gauge, Spring Brook | −27.66 m | No reference yet | ±0 | 44 min ago |
| East UR and East DRTidal gauge | 0.02 m | No reference yet | −0.06 m | 44 min ago |
| East UR and West DRTidal gauge | 0.19 m | No reference yet | +0.02 m | 44 min ago |
| Edgwarebury FSA FDRiver gauge | 63.59 m | No reference yet | −0.01 m | 44 min ago |
| Eltham Palace Road FDRiver gauge | 22.52 m | No reference yet | −0.01 m | 44 min ago |
| Enfield Golf Course FSA FDRiver gauge | 24.86 m | No reference yet | −0.01 m | 44 min ago |
| Erith TG and CharltonTidal gauge | 4.41 m | No reference yet | +0.79 m | 31 min ago |
| Erith TG and Tower PierTidal gauge | 4.43 m | No reference yet | +0.30 m | 32 min ago |
| Field End Road FDRiver gauge | 34.74 m | No reference yet | ±0 | 44 min ago |
| Frog Island Tidal Sluice FDRiver gauge | −1.42 m | No reference yet | +0.07 m | 59 min ago |
| Graveney at Robinson RoadRiver gauge | 0.27 m | No reference yet | ±0 | 44 min ago |
| Havering Tidal Sluice FDRiver gauge | −1.44 m | No reference yet | +0.01 m | 44 min ago |
| Horseshoe Corner Tidal Sluice FDRiver gauge | −3.82 m | No reference yet | +0.04 m | 44 min ago |
| King Charles Road FWSRiver gauge | 20.51 m | No reference yet | +0.01 m | 44 min ago |
| Lamorbey ParkRiver gauge, Shuttle Tributary Cray | −2.11 m | No reference yet | −0.03 m | 44 min ago |
| Loxford Sluices FDRiver gauge | 2.69 m | No reference yet | ±0 | 44 min ago |
| Mereway RoadRiver gauge | 9.54 m | No reference yet | ±0 | 44 min ago |
| Mogden GSRiver gauge | 0.19 m | No reference yet | ±0 | 44 min ago |
| Mottingham Lane FDRiver gauge | 0.06 m | No reference yet | −0.05 m | 44 min ago |
| Oakbrook Close FDRiver gauge | 0.01 m | No reference yet | ±0 | 44 min ago |
| Rainham Main FDRiver gauge | −1.32 m | No reference yet | −0.01 m | 44 min ago |
| RichmondTidal gauge, Thames Tideway | 0.20 m | No reference yet | +0.37 m | 44 min ago |
| River Wandle at Beddington Park FDRiver gauge | −0.04 m | No reference yet | ±0 | 44 min ago |
| River Wandle at Merton AbbeyRiver gauge | 13.86 m | No reference yet | ±0 | 44 min ago |
| River Wandle at Morden HallRiver gauge | −0.04 m | No reference yet | −0.04 m | 44 min ago |
| River Wandle at Ravensbury MillRiver gauge | −0.01 m | No reference yet | ±0 | 44 min ago |
| Ruxley Pits Outfall RLRiver gauge | 28.23 m | No reference yet | −0.03 m | 44 min ago |
| SilvertownTidal gauge, Thames Tideway | −1.58 m | No reference yet | +0.19 m | 44 min ago |
| Silvertown and CharltonTidal gauge | 0.11 m | No reference yet | +0.09 m | 31 min ago |
| Silvertown and Tower PierTidal gauge | 0.09 m | No reference yet | −0.40 m | 31 min ago |
| Teddington Lock Head(AOD)Tidal gauge | 4.29 m | No reference yet | −0.03 m | 44 min ago |
| Teddington Lock Tail (AOD)Tidal gauge | 2.10 m | No reference yet | +0.04 m | 44 min ago |
| Tower PierTidal gauge, Thames Tideway | −1.44 m | No reference yet | +0.52 m | 44 min ago |
| Weigall Road FDRiver gauge | 15.11 m | No reference yet | −0.01 m | 44 min ago |
| West UR and East DRTidal gauge | 0.15 m | No reference yet | −0.11 m | 44 min ago |
| West UR and West DRTidal gauge | 0.05 m | No reference yet | +0.03 m | 44 min ago |
| WestminsterTidal gauge, Thames Tideway | −1.07 m | No reference yet | +0.61 m | 44 min ago |
| Willersley Avenue UsgsRiver gauge | 27.31 m | No reference yet | +0.02 m | 44 min ago |