The Met Office has issued a rare Red Extreme Heat Warning for large parts of southern England and Wales over the coming days.

We will run a reduced timetable on Wednesday, Thursday and Friday. During this time, fewer trains will be running across the network.

Trains that run are expected to be busier and journey times will likely be longer than usual. Services may be subject to further short-notice changes and cancellations.

In line with national travel advice, customers are advised to only travel if absolutely necessary.

Ticket acceptance is in place to travel on alternative days.

If you must travel, please check journey planners before setting off, bring a bottle of water and do not board a train if you are feeling unwell.

Journey planners with service changes for Wednesday and Thursday are available. Journey planners for Friday will be available at 02:00 Thursday morning.

Summary of service

Wednesday 24, Thursday 25 and Friday 26 June

A significantly reduced timetable will operate service across our network as follows:

Long Distance services

• Services between London Waterloo and Weymouth will finish their journeys at Bournemouth. An hourly shuttle service will operate between Bournemouth and Weymouth.
• Services between London Waterloo and Portsmouth Harbour will be revised. Services between London Waterloo and Portsmouth Harbour via Eastleigh will start their journeys from Basingstoke.
• Services between London Waterloo and Portsmouth Harbour via Guildford will be reduced to two trains per hour.
• Stopping services between Winchester, Southampton Central and Bournemouth will not run.
• Stopping services between London Waterloo and Basingstoke will be retimed and will run hourly.
• Stopping services between London Waterloo and Alton will be retimed and will run hourly.

West of England

• Services between London Waterloo, Exeter and Yeovil Junction will finish their journeys at Salisbury. An hourly shuttle service will run between Sailsbury and Exeter.

Suburban services

• Services between London Waterloo and Chessington South will run hourly.
• Some services from London Waterloo to Shepperton will run hourly, with some additional cancellations.

Changes on other parts of our route

• Some services between London Waterloo via Windsor will run hourly.
• Some services between Guildford and Farnham will run hourly.

Ticket information

To help customers complete their journeys, we are introducing temporary travel easements.

Customers may travel on any alternative South Western Railway (SWR) service.

SWR tickets dated Wednesday 24 June, Thursday 25 June and Friday 26 June can be used on any SWR service between Saturday 27 until Tuesday 30 June, however we strongly advise you to check before you travel. There is no need to change your ticket.

If your journey involves connecting services with another operator, please check with them directly as their travel advice may differ.

If you no longer wish to travel, you can claim a full fee-free refund. More information can be found here.

If you are a season ticket holder and did not travel on Wednesday 24 and/or Thursday 25 due to our essential journeys travel message, you can claim the value of a day’s travel through our Delay Repay scheme.

Tuesday 23 June

• Customers booked to travel on Tuesday 23 June may travel on any alternative SWR service.
• Alternatively, SWR tickets dated Tuesday 23 June can be used on any SWR service between Saturday 27 until Tuesday 30 June, however we strongly advise you to check before you travel. There is no need to change your ticket.

Wednesday 24 June

• Customers are advised to travel only for essential journeys. There are planned alterations to some services on Wednesday and, as a result, some of our services will not run. Others may be subject to alteration.
• Customers booked to travel on Wednesday 24 June may travel on any alternative SWR service. We also recommend that you travel earlier in the day (before 12:00) when it is likely to be cooler.
• Alternatively, SWR tickets dated Wednesday 24 June can be used on any SWR service between Saturday 27 until Tuesday 30 June, however we strongly advise you to check before you travel. There is no need to change your ticket.

Thursday 25 June

• Customers are advised to travel only for essential journeys. There are planned alterations to some services on Thursday and, as a result, some of our services will not run. Others may be subject to alteration.
• Customers booked to travel on Thursday 25 June may travel on any alternative SWR service. We also recommend that you travel earlier in the day (before 12:00) when it is likely to be cooler.
• Alternatively, SWR tickets dated Thursday 25 June can be used on any SWR service between Saturday 27 until Tuesday 30 June, however we strongly advise you to check before you travel. There is no need to change your ticket.

Friday 26 June

• Customers are advised to travel only for essential journeys. There are planned alterations to some services on Friday and, as a result, some of our services will not run. Others may be subject to alteration.
• Customers booked to travel on Friday 26 June may travel on any alternative SWR service. We also recommend that you travel earlier in the day (before 12:00) when it is likely to be cooler.
• Alternatively, SWR tickets dated Friday 26 June can be used on any SWR service between Saturday 27 until Tuesday 30 June, however we strongly advise you to check before you travel. There is no need to change your ticket.