River Levels
River Levels

Portsmouth Harbour Tl Monitoring Station

Latest Tidal Level

3.579m

At 7:15am, Tuesday 24th April GMT

Within the usual range for this location

Rising, 3.579 from previous measurement

Warning: This data is stale! For some reason, we have not been able to obtain updated levels for over 24 hours. The current displayed level is probably incorrect and you should not rely on it.


This is a tidal level, measured from mean sea level rather than from the river bed. It can, therefore, be negative, and does not give any indication of water depth. Tidal levels are not necessarily updated frequently, and may not reflect tidal movements throughout the day.

Nearby Flood Warning Areas

Old Portsmouth

No current or recent warnings.

Tipner and Stamshaw

No current or recent warnings.

Southsea

No current or recent warnings.

Gosport

No current or recent warnings.

Hillhead to Gosport

Flood Alert

Seven Day Level Chart

Long Term Level Chart

Darker blue shaded areas on long term data indicate maximum and minimum levels for the date (you may need to zoom in closer to see them).

Long term data may have gaps where the API data was not available.

Download long term data as csv

Note: CSV data will include any outlying values that have been ignored by our graphing system as probably erroneous (eg, because they are ridiculously high compared to the values either side of them). It is your responsibility to filter these out if necessary.

Important! If you are planning to retrieve the csv data automatically, you must read and understand the limitations on the data and its availability.

Location and Technical Data

  • Monitoring Station: Portsmouth Harbour Tl
  • Watercourse:
  • Nearest Town/Village:
  • Local Authority: Portsmouth
  • Ceremonial County: Hampshire
  • Coordinates: 50°47'54"N 1°6'38"W (50.7986,-1.110824)
  • OS Grid: SU6276000270 (462760,100270)
  • Mapcode (Local): GBR VMW.QB
  • Mapcode (Global): FRA 86KZ.H1S
  • Open Location Code: 9C2WQVXQ+CM
  • Maidenhead Locator System: IO90kt61
  • Environment Agency Location ID: E11560
  • Environment Agency Gauge ID: E11560-level-tidal_level-i-15_min-mAOD
  • Operational Area: East Hampshire TraCs
  • Catchment Area: South East Transitional & Coastal
  • UK Hydrometric Area: Hampshire Rivers Group
  • Environment Agency Region: Southern
  • Level Datum: Above Ordnance Datum (AOD)

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

The usual range of the Portsmouth Harbour Tl Monitoring Station is between 1.12m and 4.52m. It has been between these levels for 90% of the time since monitoring began.

Nearby Monitoring Locations

There are no other monitored rivers nearby

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