What to expect in London in August
August is a strong choice for London: 23° / 14°, with the biggest crowds of the year and premium prices.
London weather in August
Typical conditions in London during August, based on long-run climate normals rather than any single year. Treat it as a planning guide, not a forecast.
| Average high | 23°C 73°F |
|---|---|
| Average low | 14°C 57°F |
| Rainfall | Moderate 45/100 |
| Total rainfall | 54 mm2.1 in |
| Rainy days | 8 |
| Daylight | 14 h 36 min |
| How it feels | Warm and comfortable |
Average highs sit around 23°C with lows near 14°C. Rainfall is moderate; the odd shower is likely.
Crowds & demand
Crowd levels are High for London — the biggest crowds of the year.
Prices & value
This month counts as high season: premium prices.
What to pack
Light layers for 23°C days and something with sleeves for evenings, which cool to around 14°C.
What it costs
This is peak pricing for London. Expect to pay a premium on flights and accommodation, and to book considerably further ahead than usual.
Who this month suits
- Travellers who want the most reliable weather
- Visitors who want to catch a festival
- Families tied to school holidays
Events & what’s on
Look out for Notting Hill Carnival while you’re there.
- Notting Hill Carnival — Caribbean sound systems and costumed parades fill west London streets.
London in August compared with nearby months
If your dates are flexible by a few weeks, this is what shifting them actually buys you.
| Month | Temp | Crowds | Price | Score |
|---|---|---|---|---|
| June | 21° / 12° | High | $$ | 51 |
| July | 23° / 14° | High | $$$ | 48 |
| August · This month | 23° / 14° | High | $$$ | 48 |
| September | 20° / 12° | High | $$ | 53 |
| October | 15° / 8° | Moderate | $$ | 52 |
These months score higher for London on the same blend of weather, crowds and price. Same destination, better odds.
Or go somewhere else in August
If the destination is negotiable but the month is not, these places are at their best in August.
Figures are climate normals and modelled estimates — a planning guide, not a forecast. We separate fact, estimate and recommendation. Updated October 2026
