London from Warsaw

1,446 km, about 2h 41m in the air. Every month scored for the weather at London and for the holidays that crowd it out at both ends.

Go in May–Aug — these months score within a whisker of each other; 18C max, 7 rainy days. Apr is the next best.

Search flights WAW → LON · 12–19 May 2027 Where to stay London · 12–19 May 2027 Things to do tours and tickets in London

Affiliate links: we may earn a commission if you book through one, at no extra cost to you. It changes nothing above — the scores are computed from climate and fare data before any link is built.

No fare history on WAW–LON yet, so this ranking is climate and crowds only. The price column fills in as the scanner collects.

Month by month from Warsaw

Month	Max °C	Rain days	Crowds	Verdict	Why
Jan	8°	10d	80	avoid	8C max, 10 rainy days
Feb	10°	10d	100	ok	10C max, 10 rainy days
Mar	12°	8d	65	okbusy	shoulder season
Apr	15°	5d	65	goodbusy	shoulder season
May	18°	7d	85	sweet spot	18C max, 7 rainy days
Jun	22°	7d	65	sweet spot busy	peak: Summer months attract the most tourists due to favorable weather…
Jul	24°	7d	65	sweet spot busy	peak: Summer months attract the most tourists due to favorable weather…
Aug	23°	6d	65	sweet spot busy	peak: Summer months attract the most tourists due to favorable weather…
Sep	20°	9d	85	good	20C max, 9 rainy days
Oct	16°	10d	85	ok	16C max, 10 rainy days
Nov	11°	9d	85	ok	11C max, 9 rainy days
Dec	9°	11d	80	avoid	9C max, 11 rainy days

Crowds is a score out of 100 where higher is quieter. It counts public-holiday clusters in PL as well as at London, which is why this table differs from the same one read from another country. A busy month is a crowded one, not a bad one — usually it is crowded because the weather is good. Crowds alone never make a month “avoid”: that is reserved for weather worth skipping.

Without flying

No free source quotes live fares for trains, buses or ferries, so these are searches to run rather than prices we can stand behind.

The year in London

London experiences a moderate climate year-round, but expect more rain during winter months. It's advised to prepare for rain regardless of the season.

Busiest	early Jun to late Aug — Summer months attract the most tourists due to favorable weather and school holidays.
Quieter, still good	early Mar to late May — Spring offers mild weather and fewer crowds, making it an attractive time for visitors. early Sep to late Nov — Fall has pleasant weather and decreasing tourist numbers, providing better value.

This section was written by a language model from the climate figures above, and nobody has checked it. The month-by-month table is measured — ten years of ERA5 readings and published holiday calendars — and where the two disagree, the table is the one to believe. The busiest and quieter periods here also count toward the crowd score, which is 20% of the ranking.

Get fare alerts from Warsaw On Telegram, when a fare from WAW is worth telling you about. Not more than that, and /stop ends it.

The rest of the trip

London from anywhere · everywhere from Warsaw

Some links above are affiliate links: if you book through one, we may earn a commission at no extra cost to you. It does not affect the scores on this page, which are computed from climate, holiday and fare data before any link is built.