Tideway Conditions

🌊 Tideway Information

📋 Cached data • Updated: 2026-08-26T09:38:09 • TTL: 3600s

🚩 PLA Tideway Flag

Flag Color: Black

Status: Low Fluvial Flows

Source: PLA Tideway (Updated twice daily)

Flag Meanings:

RED: Very Strong Fluvial Flows - Dangerous conditions
YELLOW: Strong Fluvial Flows - Navigate with extreme caution
GREEN: Average Fluvial Flows - Navigate with caution
BLACK: Low Fluvial Flows - Lower than usual conditions

The tideway flag system operates between Teddington and Putney on the tidal Thames.

🌊 Richmond Tidal Information

🌊 Next High Water

Time: 26 Aug @ 14:40 BST

Predicted Height: 3.84m

🏞️ Next Low Water

Time: 26 Aug @ 22:39 BST

Predicted Height: -0.28m

Next High Tide

Time: 26 Aug @ 14:40 B

Predicted Height: 3.84m

Station: Richmond (0116)

Source: PLA Tidal Predictions (Live)

Heights in metres above Chart Datum. Surge shows difference between predicted and observed levels.

🌉 Bridge Tidal Predictions (Next 48 Hours)

Calculated from London Bridge tidal data (London Bridge - 0113)

Hammersmith Bridge

HW: +38 min | LW: +118 min

Most Recent Tide

Last Low 26 Aug @ 09:36 BST 1.5m

Next Tides (48 Hours)

High 26 Aug @ 15:22 BST 6.41m

Low 26 Aug @ 23:12 BST 0.89m

High 27 Aug @ 03:51 BST 6.60m

Putney Bridge

HW: +31 min | LW: +98 min

Most Recent Tide

Last Low 26 Aug @ 09:16 BST 1.5m

Next Tides (48 Hours)

High 26 Aug @ 15:15 BST 6.41m

Low 26 Aug @ 22:52 BST 0.89m

High 27 Aug @ 03:44 BST 6.60m

Summary Format

Flag: Black
Richmond HIGH: 26 Aug 14:40 BST
Hammersmith: flood until 15:22 (since 09:36)

This appears in the main dashboard summary

{
  "data": {
    "api_source": "PLA Tideway Flag + Richmond + London Bridge Tidal Data",
    "bridge_predictions": {
      "base_station": {
        "gauge_code": "0113",
        "name": "London Bridge",
        "source": "PLA Tidal Predictions (Live)"
      },
      "hammersmith": {
        "combined_tides": [
          {
            "height": "1.5",
            "is_past": true,
            "offset_applied": "+118 min",
            "time": "26 Aug @ 09:36 BST",
            "type": "low"
          },
          {
            "height": "6.41",
            "is_past": false,
            "offset_applied": "+38 min",
            "time": "26 Aug @ 15:22 BST",
            "type": "high"
          },
          {
            "height": "0.89",
            "is_past": false,
            "offset_applied": "+118 min",
            "time": "26 Aug @ 23:12 BST",
            "type": "low"
          },
          {
            "height": "6.60",
            "is_past": false,
            "offset_applied": "+38 min",
            "time": "27 Aug @ 03:51 BST",
            "type": "high"
          }
        ],
        "high_tides": [
          {
            "height": "6.41",
            "offset_applied": "+38 min",
            "time": "26 Aug @ 15:22 BST"
          },
          {
            "height": "6.60",
            "offset_applied": "+38 min",
            "time": "27 Aug @ 03:51 BST"
          }
        ],
        "high_water_offset": "+38 min",
        "low_tides": [
          {
            "height": "1.5",
            "offset_applied": "+118 min",
            "time": "26 Aug @ 09:36 BST"
          },
          {
            "height": "0.89",
            "offset_applied": "+118 min",
            "time": "26 Aug @ 23:12 BST"
          }
        ],
        "low_water_offset": "+118 min",
        "name": "Hammersmith Bridge"
      },
      "putney": {
        "combined_tides": [
          {
            "height": "1.5",
            "is_past": true,
            "offset_applied": "+98 min",
            "time": "26 Aug @ 09:16 BST",
            "type": "low"
          },
          {
            "height": "6.41",
            "is_past": false,
            "offset_applied": "+31 min",
            "time": "26 Aug @ 15:15 BST",
            "type": "high"
          },
          {
            "height": "0.89",
            "is_past": false,
            "offset_applied": "+98 min",
            "time": "26 Aug @ 22:52 BST",
            "type": "low"
          },
          {
            "height": "6.60",
            "is_past": false,
            "offset_applied": "+31 min",
            "time": "27 Aug @ 03:44 BST",
            "type": "high"
          }
        ],
        "high_tides": [
          {
            "height": "6.41",
            "offset_applied": "+31 min",
            "time": "26 Aug @ 15:15 BST"
          },
          {
            "height": "6.60",
            "offset_applied": "+31 min",
            "time": "27 Aug @ 03:44 BST"
          }
        ],
        "high_water_offset": "+31 min",
        "low_tides": [
          {
            "height": "1.5",
            "offset_applied": "+98 min",
            "time": "26 Aug @ 09:16 BST"
          },
          {
            "height": "0.89",
            "offset_applied": "+98 min",
            "time": "26 Aug @ 22:52 BST"
          }
        ],
        "low_water_offset": "+98 min",
        "name": "Putney Bridge"
      },
      "source_info": "Calculated from London Bridge tidal data"
    },
    "last_updated": "2026-08-26T09:38:08.894397",
    "london_bridge_tidal": {
      "high_tides": [
        {
          "height": "6.41",
          "time": "26 Aug @ 12:44"
        },
        {
          "height": "6.60",
          "time": "27 Aug @ 01:13"
        }
      ],
      "low_tides": [
        {
          "height": "1.5",
          "time": "26 Aug @ 05:38 BST"
        },
        {
          "height": "0.89",
          "time": "26 Aug @ 19:14"
        }
      ],
      "station": {
        "gauge_code": "0113",
        "name": "London Bridge",
        "source": "PLA Tidal Predictions (Live)"
      }
    },
    "richmond_tidal": {
      "next_event": {
        "height": 3.84,
        "is_past": false,
        "observed_height": null,
        "predicted_height": 3.84,
        "surge": null,
        "time": "26 Aug @ 14:40 BST",
        "type": "high"
      },
      "next_high": {
        "height": 3.84,
        "is_past": false,
        "observed_height": null,
        "predicted_height": 3.84,
        "surge": null,
        "time": "26 Aug @ 14:40 BST",
        "type": "high"
      },
      "next_low": {
        "height": -0.28,
        "is_past": false,
        "observed_height": null,
        "predicted_height": -0.28,
        "surge": null,
        "time": "26 Aug @ 22:39 BST",
        "type": "low"
      },
      "raw_high_tides": [
        {
          "height": "3.84",
          "time": "26 Aug @ 13:40"
        },
        {
          "height": "4.03",
          "time": "27 Aug @ 02:12"
        }
      ],
      "raw_low_tides": [
        {
          "height": "-0.28",
          "time": "26 Aug @ 21:39"
        }
      ],
      "recent_event": null,
      "station": {
        "gauge_code": "0116",
        "name": "Richmond",
        "source": "PLA Tidal Predictions (Live)"
      }
    },
    "summary": "Flag: Black\u003cbr\u003eRichmond HIGH: 26 Aug 14:40 BST\u003cbr\u003eHammersmith: flood until 15:22 (since 09:36)",
    "tideway_flag": {
      "color": "black",
      "last_updated": "2026-08-26T09:38:08.894401",
      "source": "PLA Tideway",
      "status": "Low Fluvial Flows",
      "warning": null
    }
  },
  "metadata": {
    "enabled": true,
    "error": false,
    "error_message": null,
    "from_cache": true,
    "timestamp": "2026-08-26T09:38:09.839393",
    "ttl": 3600
  },
  "service": "tideway"
}

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