- Mid-April to mid-May is the best window for rhododendron bloom on the ridge, with the higher slopes flowering later than the lower ones.
- Long mountain views are clearest at dawn; by noon cloud usually builds and storms with hail are common in the afternoons.
- Nights at Sandakphu still fall close to freezing in April, so a proper down or fleece layer and a warm hat are not optional.
- May weekends and the Bengal school holidays fill the lodges, so book ahead and keep a buffer day for weather.
Why people walk the ridge in spring
Most people who know the Singalila Ridge will tell you that October and November are for the mountains and April and May are for the forest. That is a fair summary. In autumn the air is washed clean by the monsoon and the line of Kanchenjunga, the Three Sisters, Makalu, Lhotse and Everest stands sharp from Sandakphu at 3,636 m, the highest point in West Bengal. In spring the same peaks often sit behind a milky haze, but the slopes below you turn red, pink and cream with rhododendron, and the trail through Singalila National Park feels alive in a way it never does in December.
We walk the ridge in both seasons, and we think spring is underrated by people who only want the summit photograph. The forest between Tonglu and Kalipokhri is old and mossy, the birds are loud, the evenings in the lodges are warm with talk, and the walking is pleasant because the trail is dry and the days are long. You just have to arrive with the right expectations, which is what this piece is about.
Where and when the rhododendrons flower
The bloom moves up the hill as the season warms. Around Maneybhanjan and Chitrey, at roughly 2,100 to 2,500 m, the red tree rhododendron flowers first, often from March. Between Tumling, Tonglu and Gairibas, at around 2,600 to 3,000 m, you walk through mixed forest where white magnolia and rhododendron overlap in late March and April. The higher stretch from Kalipokhri up the steep climb past Bikheybhanjan to Sandakphu usually peaks from late April into May, with paler pinks and whites, and on the way on to Phalut some bushes are still flowering in late May.
No two years are the same. A late snowfall or a dry, warm March can shift the peak by two weeks either way, and one slope may be in full colour while the next is still in bud. If you want the best odds of seeing the ridge at its best, aim for the last ten days of April or the first ten days of May, and ask the guide office at Maneybhanjan how the bloom looks before you set out. They hear from Land Rover drivers every day.
| Stretch | Approx. altitude | Usual flowering |
|---|---|---|
| Maneybhanjan to Chitrey | 2,150–2,500 m | March to mid-April |
| Tumling, Tonglu and Gairibas | 2,600–3,070 m | Late March to late April |
| Kalipokhri to Sandakphu | 3,100–3,636 m | Late April to mid-May |
| Sandakphu to Phalut | 3,400–3,600 m | May, patchy into late May |
The weather you will really get
A spring day on the ridge has a rhythm. Dawn is often clear or nearly so, and on lucky mornings you see Kanchenjunga turn pink before the sun climbs. By nine the valleys start to steam. By late morning cloud rolls up from the Nepal side and the views close in. Most afternoons in late April and May bring a spell of rain, thunder or hail, sometimes for twenty minutes and sometimes for three hours. Evenings can clear again, and the sunset from Sandakphu after a storm is sometimes the best light of the trip.
Haze is the big difference from autumn. Pre-monsoon dust from the plains and smoke from spring forest fires in the lower hills can flatten the far horizon for days at a time. You may see Kanchenjunga, which is close, and not see Everest, which is far. We have had clear mornings in May and blank ones in April, so we never promise either.
Temperatures are kinder than in winter but still cold at the top. In April expect days of roughly 8 to 15 °C at Sandakphu and nights near 0 to 5 °C, with the odd frost. May is a few degrees warmer. Inside the lodges there is no heating beyond a kitchen fire, so you sleep in your layers.
- Start walking by 7 am to reach the next stop before the afternoon storm.
- Carry a rain jacket and a cover for your pack every day, even if the morning is blue.
- If thunder starts while you are on an open ridge, move down into the forest and wait.
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Crowds, bookings and the May rush
April is the quieter of the two months. The trail is busy at weekends with Bengali trekking groups and college students, but weekday lodges usually have space. Poila Baisakh, the Bengali new year in mid-April, brings a short spike. May is different. School holidays in West Bengal and elsewhere send families up the Land Rover road, and the lodges at Tumling and Sandakphu can be full on Friday and Saturday nights.
Book your first and summit nights ahead in May, either through the lodge directly or through the guide you hire. The GTA trekkers' huts and private lodges such as Shikhar Lodge at Tumling and the lodges at Sandakphu fill first. If you cannot get a bed at Sandakphu, Kalipokhri and Bikheybhanjan are reasonable fallbacks, and an early climb from Kalipokhri still gets you to the top in time for the morning views on the following day.
What a spring trek costs
Prices on the ridge do not change much between seasons. A guide is compulsory inside the national park and is hired at Maneybhanjan for about ₹1,500–2,000 a day per group, so a pair pays roughly ₹750–1,000 each per day. Park entry is a modest fee, about ₹100–200 plus a camera charge, paid at the same office. A dorm or shared lodge bed runs about ₹500–900 per person, a private twin room at Sandakphu about ₹2,000–3,500, and dal-bhat dinners about ₹300–400 near the top, where everything comes up by Land Rover or on a porter's back.
If you would rather ride than walk, the old Land Rovers of Maneybhanjan charge about ₹6,500–9,000 a vehicle for Sandakphu and back with one night's halt, shared by up to six. All of these are indicative 2025–26 figures; rates are set by the local associations and are revised from season to season, so check current status before you travel.
| Item | Indicative cost |
|---|---|
| Guide, per group per day | ₹1,500–2,000 |
| Porter, per day (optional) | ₹1,000–1,300 |
| Lodge dorm bed, per person | ₹500–900 |
| Private twin room at Sandakphu | ₹2,000–3,500 |
| Dal-bhat dinner near the top | ₹300–400 |
| Land Rover, Sandakphu and back with one night | ₹6,500–9,000 a vehicle |
Packing and pacing for April and May
Spring makes people pack too light. The walk from Maneybhanjan starts warm, and it is easy to forget that you are climbing almost 1,500 m to a place where water in a bottle left outside can freeze on an April night. We pack a down or thick fleece jacket, a warm hat and gloves, thermal layers for sleeping, a rain shell, a pack cover, sunglasses and strong sunscreen, because the spring sun at 3,500 m burns quickly. A headtorch matters, as power in the lodges is often limited to a few hours of solar light.
Pace yourself. Sandakphu is high enough for mild altitude symptoms, especially if you ride up by Land Rover in one day from Darjeeling. Walking in over three days, with nights at Tumling or Tonglu and at Kalipokhri, gives your body time and lets you see the forest change. Drink plenty of water, go slowly on the steep last pull, and tell your guide early if you have a pounding headache. The return through Gurdum and Srikhola, or the longer loop by Phalut, Gorkhey and Rammam, drops you through some of the best spring forest on the whole trek.
Our honest verdict on spring
If the one thing you want is a pin-sharp line of Everest, Lhotse and Makalu, come in October or November and accept bare forest and colder nights. If you want flowers, birds, longer days and a trail that feels green, come in the second half of April or early May and treat the big view as a gift on the mornings it appears. The national park closes for the monsoon, usually from mid-June to mid-September, and late May can already bring heavy rain, so do not leave it too late.
For a shorter rhododendron fix without the full trek, Barsey in West Sikkim has a well-known rhododendron sanctuary and an easy walk in from Hilley. It is a fine alternative for families, and it flowers in the same weeks.
Questions people ask
Good to know
When do rhododendrons bloom at Sandakphu?
Usually from late April to mid-May at the top, with lower stretches such as Chitrey and Tonglu flowering earlier, from March into April. The exact peak shifts by a week or two each year with snowfall and spring temperatures. For the best odds, walk in during the last ten days of April or the first ten days of May, and ask the guide office at Maneybhanjan about the bloom before starting.
Can you see Everest from Sandakphu in May?
Sometimes, but not reliably. Spring haze from the plains and smoke from forest fires often hide distant peaks like Everest, Lhotse and Makalu, while nearer Kanchenjunga shows more often. Your best chance is at dawn, before cloud builds. If a clear Everest view is your main reason to go, October and November are far more dependable months.
How cold is Sandakphu in April?
Daytime temperatures at the top are roughly 8 to 15 °C in April, and nights drop close to freezing, sometimes with frost. Wind on the open ridge makes it feel colder. Lodges have no room heating, so bring a down or thick fleece jacket, a warm hat, gloves and thermal layers to sleep in. May is a few degrees warmer but still cold after dark.
Do I need to book lodges for Sandakphu in spring?
In April, weekday beds are usually available on arrival, but booking ahead is wise for weekends. In May, especially during school holidays, lodges at Tumling and Sandakphu often fill on Friday and Saturday nights, so book your summit night in advance through the lodge or your guide. Kalipokhri and Bikheybhanjan are useful fallbacks if Sandakphu is full.
Is a guide compulsory for the Sandakphu trek?
Yes. The trail runs through Singalila National Park, and a registered guide from the Maneybhanjan guide association is required. Guides cost about ₹1,500–2,000 a day per group, plus their meals or a food allowance, and park entry is paid at the same office. Rates are revised from time to time, so check current status before you travel.