River Thames conditions - advice for boaters

Page Last Updated: 26 October 2020 12:01   

Thames Map Thumbnail

Welcome to the Environment Agency's online River Thames conditions update service which displays our current advice to river users. We display warning boards at our locks to inform river users of conditions that may make navigating difficult and dangerous.

This page shows our current advice for each reach of the river between Cricklade and Teddington. We will update this information regularly when warning boards are being displayed at locks and as river conditions change.


Lechlade to Oxford Back to Map

ReachCurrent conditions
Upstream of St John's LockCaution stream increasing
St John's Lock to Buscot LockCaution stream increasing
Buscot Lock to Grafton LockCaution stream increasing
Grafton Lock to Radcot LockCaution stream increasing
Radcot Lock to Rushey LockCaution stream increasing
Rushey Lock to Shifford LockCaution stream increasing
Shifford Lock to Northmoor LockCaution stream increasing
Northmoor Lock to Pinkhill LockCaution stream increasing
Pinkhill Lock to Eynsham LockCaution stream increasing
Eynsham Lock to King's LockCaution stream increasing
King's Lock to Godstow LockCaution stream increasing
Godstow Lock to Osney LockCaution strong stream
Osney Lock to Iffley LockCaution stream increasing

Oxford to Henley Back to Map

ReachCurrent conditions
Iffley Lock to Sandford LockCaution strong stream
Sandford Lock to Abingdon LockCaution strong stream
Abingdon Lock to Culham LockCaution stream increasing
Culham Lock to Clifton LockCaution stream increasing
Clifton Lock to Day's LockCaution stream increasing
Day's Lock to Benson LockCaution stream increasing
Benson Lock to Cleeve LockCaution stream increasing
Cleeve Lock to Goring LockCaution stream increasing
Goring Lock to Whitchurch LockCaution strong stream
Whitchurch Lock to Mapledurham LockCaution stream increasing
Mapledurham Lock to Caversham LockCaution stream increasing
Upstream of Blake's LockCaution stream increasing
Caversham Lock to Sonning LockCaution stream increasing
Sonning Lock to Shiplake LockCaution stream increasing
Shiplake Lock to Marsh LockCaution strong stream
Marsh Lock to Hambleden LockCaution strong stream

Henley to Teddington Back to Map

ReachCurrent conditions
Hambleden Lock to Hurley LockCaution stream increasing
Hurley Lock to Temple LockCaution stream increasing
Temple Lock to Marlow LockCaution stream increasing
Marlow Lock to Cookham LockCaution stream increasing
Cookham Lock to Boulters LockCaution stream increasing
Boulters Lock to Bray LockCaution stream increasing
Bray Lock to Boveney LockCaution stream increasing
Boveney Lock to Romney LockCaution stream increasing
Romney Lock to Old Windsor LockCaution stream increasing
Old Windsor Lock to Bell Weir LockCaution stream increasing
Bell Weir Lock to Penton Hook LockCaution stream increasing
Penton Hook Lock to Chertsey LockCaution stream increasing
Chertsey Lock to Shepperton LockCaution stream increasing
Shepperton Lock to Sunbury LockCaution stream increasing
Sunbury Lock to Molesey LockCaution stream increasing
Molesey Lock to Teddington LockCaution stream increasing

Information for boaters

Coronavirus information

Some of our services are restricted due to the impact of the coronavirus (COVID-19) emergency. Go to locks and facilities for boaters for more detail.

You can check our lock and weir keeper working patterns - 2020 season, as this has been affected by our response to the pandemic.

You can also find coronavirus information and guidance for all Environment Agency waterways at Environment Agency waterways coronavirus (COVID-19) update.

Service update

You can buy cards to use our electric charging or sewage pump-out facilities at some locks when a lock keeper is on duty. Go to our locks and facilities for boaters page for more details.

Rushey Lock sewage pump-out is unavailable.

Mapledurham Lock sewage pump-out is unavailable.

Cookham Lock electric charging point at the short stay moorings is unavailable. The next electric charging points are downstream Old Windsor or upstream Shiplake. 

Navigation markers

When travelling upstream keep red obstruction marker buoys on your left, and green buoys on your right.

When travelling downstream, keep red buoys on your right, and green buoys on your left.

Single yellow marker buoys can be passed on either side.

In all cases, pass well clear of marker buoys, and take care. You should also be careful in the margins of the river, and around bends, where river and weather conditions have resulted in tree debris collecting and some shallows forming.

Key

Caution strong stream
We advise users of all boats not to navigate because the strong flows make it difficult and dangerous.
Caution stream increasing
We advise users of all unpowered boats not to navigate and users of powered boats to find a safe mooring. This is because river flows are likely to strengthen and red boards could be displayed very soon and without warning.
Caution stream decreasing
We advise users of all unpowered boats not to navigate and users of powered boats to navigate with caution.

Floodline

This information is also available on Floodline. Call 0345 988 1188 and select option 1 for river information for boaters.

Contacts

  • Contact Name: The Environment Agency

    Tel. 03708 506 506 (Monday to Friday, 8am to 5pm)

    E-mail: enquiries@environment-agency.gov.uk

  • Contact Name: Incident Hotline

    Tel. 0800 80 70 60 (24 hour service)

Related Links

Thames Locks MapThames Locks Map Names OverlayClick here to view current conditions for:
Lechlade to OxfordOxford to HenleyHenley to Teddington