Short answer
Two windows beat everything else: mid-April to late May, and September to late October. Days sit between 16 and 22°C, the rain has not started or has just finished, the sky is at its clearest of the year, and there is no month-long festival crowd to fight.
Winter, from November to mid-March, is the second-best choice and the cheapest. Lhasa is cold, with nights down to around -7 to -10°C, but the sun shines eight hours a day, hotels cost a fraction of July prices, and the big sites are often free to enter under the regional winter promotion. The trade-off is fewer group tours running and more closed guesthouses.
June, July and August are the rainy season. It is not a washout, rain mostly falls in the evening and at night, and the valleys are green — but cloud sits on the mountains for part of most days, this is the busiest stretch of the year, and the Shoton Festival at the start of it pushes prices up again.
Lhasa month by month
Figures are 1991-2020 climate normals, not forecasts. Note the gap between day and night: warm afternoons, cold after dark, in every month except high summer. Rain totals are for the city, which sits in a dry valley.
| Month | Day / night | Rain | Sunshine | Crowds | Verdict |
|---|---|---|---|---|---|
| January | 8°C / -7°C | Under 1mm, one wet day | 8 hours | Lowest | Cold, empty, cheapest. Free-ticket season. |
| February | 10°C / -5°C | Under 2mm | 8.5 hours | Very low | Losar can fall this month. Sunny, quiet. |
| March | 13°C / -1°C | Under 3mm | 8 hours | Low | Turning point. Windy, still cold at night. |
| April | 16°C / 3°C | 9mm, five wet days | 8.5 hours | Moderate | Best of the spring. Warm afternoons, clear air. |
| May | 20°C / 7°C | 30mm, nine wet days | 9 hours | Busy | Excellent weather, rising prices, holiday week early on. |
| June | 23°C / 11°C | 75mm, 14 wet days | 8.5 hours | Busy | Warm, greener, cloud building in the afternoon. |
| July | 23°C / 11°C | 130mm, 19 wet days | 7.5 hours | Peak | Wettest and busiest. Shoton falls around early August. |
| August | 22°C / 11°C | 135mm, 20 wet days | 7 hours | Peak | Cloudiest month. Shoton, then school holidays. |
| September | 21°C / 9°C | 65mm, 15 wet days | 8 hours | Busy, easing late | Rain tapers off. One of the two best months. |
| October | 18°C / 3°C | 9mm, four wet days | 9 hours | Peak 1-7 October | Clearest skies of the year. Avoid the first week. |
| November | 13°C / -3°C | Under 1mm | 9 hours | Low | Dry, bright, cold nights. Free-ticket season opens. |
| December | 10°C / -7°C | Almost none | 8.5 hours | Lowest | Bright and almost deserted. Bring real winter layers. |
Two dates to plan around rather than visit through: the first week of May and the first week of October are Chinese public holidays, when domestic flights, hotels and train berths into Lhasa all fill and prices roughly double. October is otherwise the single best month on this table.
Peak season against the quiet season
Lhasa's season does not follow the weather alone. It follows tour departures, the permit pipeline and the festival calendar, and the price gap between July and January is large.
| Season | When | Crowds | Hotels | Tours | Tickets |
|---|---|---|---|---|---|
| Peak | Mid-June to end August, plus 1-7 May and 1-7 October | Heavy, especially Potala and Jokhang mornings | Top of the year; book weeks ahead | Group departures nearly every day | Full price, timed entry in demand |
| Shoulder | April to mid-June, September to October | Manageable | Mid-range, discounts available | Groups run most days | Full price |
| Winter | 1 November to 15 March | Light | Lowest of the year, many places close | Fewer groups; you may end up private | Free at most A-level sites under the winter scheme |
The trap in winter is that the savings are real but the group tour you meant to join may not run. Alone in January, a private guide and car can cost more than the free entrances save.
The winter free-ticket scheme
Since 2018 the Tibet Autonomous Region has run a promotional winter programme, announced in rounds. The most recent, the eighth, covered 1 November 2025 to 15 March 2026: every A-level scenic site free, monastery sites excluded. That put the Potala Palace on the free list along with Namtso and Yamdrok Lake, and left the Jokhang, Sera, Drepung and Ganden charging as religious sites.
Free does not mean walk-up. The palace has never sold same-day tickets and still needs an advance reservation through its own account. Norbulingka reverted to ticketed entry on 16 March 2026 at ¥60 standard and ¥30 concession — a reminder of how sharply these rounds start and stop.
Festivals worth planning around
Tibetan festivals follow a lunisolar calendar, so Gregorian dates shift by roughly eleven days a year. Two matter to a visitor.
Shoton Festival (August, usually)
Shoton means yoghurt feast and marks the end of the monks' summer retreat. It opens on the 30th day of the sixth Tibetan month, which fell on 12 August in 2026 and on 23 August in 2025. The first morning is the one to be there for: a giant thangka is unrolled on the hillside at Drepung Monastery, with people arriving from three in the morning. From the second day, Tibetan opera runs at Norbulingka. It is also the busiest week of the Tibetan year for domestic travellers, so book two months out or avoid it.
Losar, Tibetan New Year (February or early March)
Losar fell on 18 February in 2026. Lhasa empties as people travel home, some restaurants shut for days, and little is aimed at visitors. Interesting to be in the city, but not a reason to come. Other dates shift the same way, including Saga Dawa and the December festivals; ask an agency for the current year's calendar before fixing dates.
Altitude, cold and the season
Lhasa sits at about 3,650 metres. Altitude is not seasonal and acclimatisation works the same way in January as in July, but the seasons change how the first two days feel.
- Winter nights are the hard part. Nights drop to around -7°C and hotel heating varies. Check that yours is reliable before booking January.
- Winter air is very dry. Humidity averages 21-24% from November to February against 56-58% in July and August. A scratchy throat is a more common complaint than the cold.
- The winter sun is deceptive. Eight to nine hours a day, high ultraviolet and wind. A bright 13°C November afternoon will still burn you.
Whatever the month, the first three days are for settling: short walks, early nights, no rush to higher ground.
Tours, permits and the season
Foreign passport holders cannot travel to Tibet independently. Entry needs a Tibet Travel Permit through a licensed agency, with a guide and a driver, so the season decides what kind of tour you can join rather than what paperwork you need.
- Peak season runs shared group tours constantly, at their best value, and Xining-Lhasa train berths sell out days ahead.
- Shoulder season gives group departures most days and a better choice of hotel, which is much of why April-May and September-October is the recommendation.
- Winter may mean a private guide and car because no group is forming. Ask for that in writing before paying a deposit.
Frequently asked questions
What is the best month to visit Lhasa?
October, avoiding the first week: clearest skies of the year, days around 18°C, about four wet days in the month. April and May are close behind. For the cheapest trip, January and February beat everything on price and crowd, at the cost of real cold and fewer tours.
Is winter a bad time to visit Tibet?
No, it is underrated. Bright days, clear skies, quiet sites, the cheapest hotels of the year, and most A-level sites free under the regional winter promotion. The downsides are nights of around -7 to -10°C, some closures, and fewer shared group tours running.
Does the free winter ticket scheme still exist?
The eighth round ran from 1 November 2025 to 15 March 2026 and made all A-level scenic sites free except monastery sites, including the Potala Palace. Further rounds are announced each autumn, so check the Tibet Autonomous Region culture and tourism department's channel rather than assuming it continues.
When is the Shoton Festival?
It opens on the 30th day of the sixth Tibetan month and lasts about a week: 12 August in 2026, 23 August in 2025. The calendar is lunisolar, so the Gregorian date moves by roughly eleven days a year. Confirm the current year rather than reusing an old date.
Can I visit Lhasa in the rainy season?
Yes. July and August are the wettest months at around 130-135mm each, but the rain tends to arrive in the afternoon and evening rather than falling all day. Expect cloud on the mountains, greener valleys and softer light, and book early since it is the domestic peak.
How cold does Lhasa get at night?
The average night low is -7°C in January, -5°C in February and -6.6°C in December, with occasional dips to around -15°C. Even July and August average 11°C at night, so a warm evening layer is useful in every month.
Is altitude sickness worse in winter?
The altitude is the same; winter adds cold, very dry air and wind, which make the first days less comfortable. Summer humidity and air pressure are marginally higher, though neither is a reason to pick a season. Two quiet days on arrival matter far more.
Why avoid the first week of October?
It is the National Day holiday, one of two weeks a year when domestic travel peaks across China. Flights, hotels and berths into Lhasa are booked out well in advance and prices roughly double. October outside that week is the best of the year.
Related reading
Monthly temperature, rainfall and sunshine figures follow 1991-2020 climate normals for Lhasa. The Shoton Festival date of 12 August 2026 reflects the Tibetan calendar conversion and was reported by Chinese state media; the 2025 date is given for comparison. Winter promotion terms follow the Tibet Autonomous Region Culture and Tourism Department's notice for the eighth round, and the Norbulingka ticket notice of March 2026. All figures are approximate, and promotional schemes, ticket rules and permit requirements change — confirm them on the official channels before you book.