Published
The short answer: October to May is the best time to visit Chitwan National Park, and December to March is the sweet spot for birdwatching. The longer answer depends on what you'd like to see, how you cope with heat and whether you mind a bit of rain. Our packages run all year round, so here's how the calendar looks from the ground.
October and November
The monsoon has passed, the forest is green and the air clears. Days are pleasant, and November is particularly good for clear views of the Himalaya on the right day. Migratory birds start arriving from September, so birders get a head start. We'd recommend booking in advance for these months.
December and January
Winter in Chitwan means warm, sunny afternoons and cold, misty mornings. January is the coldest month, and temperatures can drop close to freezing, especially when it rains. From late November, morning humidity is very high and the dew drips off the trees so steadily that people often mistake it for rain. Pack a proper jacket and a warm layer for the early starts. By the afternoon, it can be 20 to 25°C again, and it's a wonderful time for birdwatching.
Late January and February
In late January, local villagers are allowed into the park to cut thatch grass for their own needs. It's good news for visitors too: with the tall grass down, wildlife is much easier to see. February is still cool in the mornings and lovely by the afternoon, and the late-winter flowers appear, including the crimson blooms of the palash tree (the "flame of the forest") and the silk cotton tree.
March to May
The hot season. Temperatures climb steadily through March and April to a peak in May, when they can reach 43°C. Mornings and evenings are the time to be out, and the middle of the day is for a long lunch and a rest in the shade. Nights in April can be surprisingly cool despite the heat of the day. Migratory birds pass through again from February to April.
June to September
The monsoon usually runs from late June to September, after pre-monsoon storms in late May. Rain tends to come in heavy bursts rather than all day, and there are often as many dry days as wet ones, but humidity is very high, rivers flood and some roads become impassable. Some activities may be limited and journeys can take longer. On the bright side, the forest is at its greenest, and summer brings nesting migrants such as the paradise flycatcher and the Indian pitta.
So when should you go?
- For the most comfortable weather: October to February, and March before the real heat arrives. - For birdwatching: December to March. - For easier wildlife viewing: from late January, after the grass cutting. - If you don't mind rain: the monsoon brings the greenest forest, though some activities and roads may be limited.
Whatever the month, wildlife sightings depend on conditions and are never guaranteed, but every season has something to offer. For more on Chitwan's climate and seasons, see our guide to Chitwan National Park. Once you've chosen your dates, have a look at what to pack and compare our safari packages.