London hasn't been the sunniest of locations lately, but TBH we don't usually mind a little bit of rain. Even though it's JUNE. JUNE! Buck your ideas up, England.
-- Daniel David (@IAmDanielDavid) June 23, 2016
However, tempers flared when rail services were disrupted by torrential rain. Several Tube sations were closed, while those travelling on rail networks experienced delays or cancellations.
This was the scene at Waterloo:
Or maybe stuck at Waterloo, watching the crowds, destined to rue my missed vote for evermore pic.twitter.com/QuSeg918iq
-- Sarah (@SezSaysStuff) June 23, 2016
Here's what happens to Waterloo when there's heavy rain. Complete chaos. Some of these people will not be voting. pic.twitter.com/uWpCUug5lB
-- Mark Hookham (@MarkHookham) June 23, 2016
No trains from Waterloo. Stn so crowded gates are closed. Overhearing ppl concerned about getting home to vote. pic.twitter.com/6J7siXWPXp
-- Kara Mukerjee (@KaraTM) June 23, 2016
Overcrowding wasn't the only issue either - rain reportedly poured in from several spots around the station.
-- Joe Tidy (@joetidy) June 23, 2016
Travel chaos at Victoria this evening. It's normally bad, but this is insane! pic.twitter.com/DXBWmHL5tr
-- Taylor Heyman (@Taylorheyman) June 23, 2016
-- Shanghai_Dan (@shanghai_dan) June 23, 2016
Not enough for you? How about a little taste of Charing Cross?
Nightmare at London Charring Cross... pic.twitter.com/dRohWdU5ow
-- Paul Brown (@brownpf) June 23, 2016
Some voiced concern that they might miss out on their chance to vote because of the disastrous disruptions to travel.
-- Jenni Goodfellow (@_JustJenni_) June 23, 2016
Been stuck on a train for an hour. Boyfriends been stuck on the motorway for two hours. WE JUST WANT TO GO VOTE GODDAMMIT!
-- London Beauty Queen (@LBQblog) June 23, 2016
Loooong Train delays from London, gonna miss my vote ?? #RemainINEU
-- Michael Harper (@Harper05) June 23, 2016
A Transport for London (TfL) spokesman apologised to those whose journeys had been affected.
"A small number of our stations have been closed or part-closed due to flooding, caused by the heavy rain," said the spokesman.
"We're working to clear the water as quickly as possible so that services can return to normal.
"Passengers are advised to check the TfL website and our social media feeds for the latest information."