The Best Time for a London Bus Tour

There is no bad month for a London bus tour — the featured See London by Night open-top tour runs 365 days a year, and so do the major hop-on hop-off operators. But the experience changes a lot between a bright June evening and a frosty December night. This guide breaks down sunset times, weather and crowds month by month so you can pick the slot that matches what you actually want: floodlit landmarks, Christmas lights, mild weather or thin crowds.

The single biggest factor: when it gets dark

The See London by Night tour is built around floodlit landmarks, and that only works once the sun is down. London’s sunset swings by more than five hours across the year, so the month you visit decides whether your “night” tour is genuinely dark.

In late December the sun sets around 3:55 PM, so even a late-afternoon departure runs in full darkness. In late June, sunset is closer to 9:20 PM — and the tour’s own booking notes flag that during May, June and July the earliest departures may still be in daylight. If you visit in those long-evening months, simply book a later departure slot. The route is identical; only the light changes.

Month-by-month: weather, crowds and what to expect

Spring (March–May)

Spring is one of the best windows. March and April are statistically among London’s drier months, crowds are still moderate, and from late March the clocks spring forward so evenings lengthen. The trade-off: by May the earliest night departures lose their darkness, so book a later slot. Daytime highs climb from the low-to-mid 50s°F in March toward the mid-60s°F by May — pleasant on the upper deck with a jacket.

Summer (June–August)

Summer brings the warmest, most comfortable upper-deck conditions, with highs around 73°F (23°C) in July. It is also the busiest stretch — school holidays and peak tourism mean the night tour frequently sells out the same day, especially Friday and Saturday departures. Two summer-specific tips: book early, and choose a late departure so the route is actually dark when you ride it.

Autumn (September–November)

September is the quiet star of the calendar — mild, with shorter evenings that bring darkness back to earlier departure slots, and noticeably thinner crowds than peak summer. October is statistically London’s wettest month, so pack a rain layer; the open-top buses run with the roof open in all but the heaviest rain. From late October the clocks go back, and by November every departure runs in full darkness.

Winter (December–February)

Winter is the most atmospheric and the least crowded time for a London bus tour. Because the sun sets before 4:30 PM, even an afternoon departure is fully floodlit. The bonus: the route catches the Christmas lights on Regent Street and Oxford Street, which are typically on display from mid-November into early January. The catch is the cold — wind on the open upper deck on a January night is genuinely biting, so layer up properly (see our London night bus tour guide for what to wear).

Best time by traveller type

Best time of day

Whatever the month, departure time matters more than most visitors expect — and on a night tour, it is the difference between a floodlit ride and a dusk one.

In summer, go late. With sunset near 9:20 PM around the June solstice, a 7 PM departure spends most of its 90 minutes in daylight; an 8:30 PM or later slot delivers the lit-up city the tour is built around. In winter, the opposite is true — the sun is down before 4:30 PM from late October, so any slot works, and an earlier departure gets you back before the coldest, windiest part of the evening. In spring and autumn, aim for a departure roughly an hour after sunset for the best mix of fading “blue hour” sky and floodlit landmarks.

Whenever you book, arrive at the Green Park meeting point 10–15 minutes early. Seats on the open upper deck are first-come, first-served, and on a dry evening the uncovered seats — the ones with unobstructed views and the clearest camera angles — go quickly.

Booking ahead: when slots sell out

The night tour runs limited evening departures, so the calendar affects availability as well as experience. Two windows are hardest to book last-minute:

• The dark-evening months, October through March — demand is high because every departure is genuinely floodlit and the route catches the Christmas lights.
• Friday and Saturday slots, year-round — weekend evenings fill first in every season.

If your trip lands in either window, book online as far ahead as you can. Free cancellation up to 24 hours before departure means an early booking carries no real downside — you lock your preferred date and slot, and you can still change plans. Leaving it to the day of travel risks finding only daytime slots left, or nothing at all.

Ready to Book?

The See London by Night open-top tour runs every night of the year, rated 4.5/5 by 5,686 guests, from $31.70 per person with free cancellation up to 24 hours before. Pick your month, pick a departure that lands after dark, and check availability and book your London bus tour — evening slots in the dark-sky months from October through March sell out fastest.