River Thames conditions - advice for boaters

Page Last Updated: 1 December 2020 10:48   

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 decreasing
St John's Lock to Buscot LockCaution stream decreasing
Buscot Lock to Grafton LockCaution stream decreasing
Grafton Lock to Radcot LockCaution stream decreasing
Radcot Lock to Rushey LockCaution stream decreasing
Rushey Lock to Shifford LockCaution stream decreasing
Shifford Lock to Northmoor LockCaution stream decreasing
Northmoor Lock to Pinkhill LockCaution stream decreasing
Pinkhill Lock to Eynsham LockCaution stream decreasing
Eynsham Lock to King's LockCaution stream decreasing
King's Lock to Godstow LockCaution stream decreasing
Godstow Lock to Osney LockCaution stream decreasing
Osney Lock to Iffley LockNo Stream Warnings

Oxford to Henley Back to Map

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

Henley to Teddington Back to Map

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

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

29/11/12 Godstow Lock has developed a fault and is on hand wind only. Engineers will be in attendance first thing in the morning. 

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