Engineering works to fix a broken piece of railway track which had buckled as a result of the recent hot weather have now concluded allowing normal service to resume at Waterloo, reports Network Rail.
South West Trains say they do not expect any further delays to their services but are advising customers to carry extra water for their journeys.
More top news
The latest weather for the east with Philippa
The latest weather for the west with Philippa
Two new portrait photographs of the Duchess of Cambridge have gone on public display, as Princess Charlotte celebrates her first birthday