Best time to visit Bihar
Short answer: January to December, with October and March as good shoulders. Long answer — every month, every festival and the best window for each of our 43 places — is below.
Month by month
Bihar weather and what’s on, January to December.
Temperatures are typical plains highs/lows; the Kaimur plateau and Valmiki run 2–3 °C cooler. Rain is a monthly average — one monsoon storm can deliver a week’s worth.
January
22° / 8° · 15 mm · ●●●●●Coldest and clearest. Fog can delay trains and early flights, but days are perfect for walking ruins and forts.
On: Kagyu Monlam & winter teachings · Makar Sankranti
Go to: Bodh Gaya · Valmiki Tiger Reserve · Kanwar Lake · Rohtasgarh
Pack: Proper jacket for dawn and dusk, layers for midday.
February
26° / 11° · 15 mm · ●●●●●The sweet spot — warm days, cool nights, no rain, every park and safari open.
Go to: Bodh Gaya · Valmiki Tiger Reserve · Kanwar Lake · Rohtasgarh
Pack: Light jacket, sunglasses.
March
32° / 16° · 10 mm · ●●●●○Holi month. Warming quickly; plan outdoor sights before 11 am, museums after.
On: Holi
Go to: Rajgir · Barabar Caves · Pawapuri · Vaishali
Pack: Cotton, hat, a scarf for temples.
April
38° / 22° · 10 mm · ●●○○○Hot and dry with loo winds by afternoon. Dawn temple visits, caves and river evenings still work.
Go to: Rajgir · Barabar Caves · Pawapuri · Vaishali
Pack: Sun protection, electrolyte sachets, loose cotton.
May
40° / 26° · 30 mm · ●○○○○Peak heat. Only for Buddha Purnima pilgrims and those with air-conditioned cars and early starts.
On: Buddha Purnima
Go to: Bodh Gaya · Patna · Nalanda · Maner Sharif
Pack: Same as April, plus a cap and rehydration salts.
June
37° / 27° · 140 mm · ●●○○○Monsoon arrives mid-month. Humid, stormy, but the first green appears and waterfalls begin to run.
Go to: Bodh Gaya · Patna · Nalanda · Maner Sharif
Pack: Umbrella, quick-dry clothes, sandals.
July
33° / 26° · 300 mm · ●●○○○Wettest month. Kaimur waterfalls at full roar, Shravani Mela begins; floods possible in north Bihar.
On: Shravani Mela · Madhushravani
Go to: Kakolat Falls · Dhua Kund · Sultanganj · Mundeshwari
Pack: Rain jacket, dry bag for phone, closed shoes with grip.
August
32° / 26° · 280 mm · ●●○○○Still raining, rivers high. Best month for Telhar Kund, Kakolat, Dhua Kund — check road access first.
On: Shravani Mela · Madhushravani
Go to: Kakolat Falls · Dhua Kund · Sultanganj · Mundeshwari
Pack: As July.
September
32° / 25° · 200 mm · ●●●○○Rain tapering; Pitru Paksha fills Gaya for a fortnight. Everything is green, skies clearing late month.
Go to: Kakolat Falls · Dhua Kund · Sultanganj · Mundeshwari
Pack: Umbrella still, lighter layers.
October
31° / 20° · 60 mm · ●●●●○Season reopens — Durga Puja, then Diwali and Chhath. Valmiki safaris restart. Book trains early.
On: Chhath Puja · Pitru Paksha Mela
Go to: Patna ghats · Rajgir · Bodh Gaya · Valmiki Tiger Reserve
Pack: Light cotton, a thin layer for nights.
November
28° / 14° · 5 mm · ●●●●●Chhath at the ghats, Sonepur Mela, Rajgir Mahotsav. Dry, mild, arguably the best travel month.
On: Chhath Puja · Sonepur Mela · Rajgir Mahotsav · Sama Chakeva
Go to: Patna ghats · Rajgir · Bodh Gaya · Valmiki Tiger Reserve
Pack: Light jacket for evenings.
December
23° / 9° · 5 mm · ●●●●●Cold, dry, Bodh Gaya in full teaching season with monks from everywhere. Fog from mid-month.
On: Sonepur Mela · Kagyu Monlam & winter teachings
Go to: Patna ghats · Rajgir · Bodh Gaya · Valmiki Tiger Reserve
Pack: Warm jacket, cap; fog means slack in the schedule.
Festival calendar
Twelve festivals worth planning a trip around.
Most follow the lunar calendar, so dates shift by a few weeks each year — check the current year’s date before booking.
Six days after Diwali — late Oct or Nov
Chhath Puja
Every river ghat; Patna's are the grandest
Bihar's own festival: families stand waist-deep in the Ganga offering to the setting and rising sun. Sunrise on the final morning is the single most moving sight in the state.
Plan around it →Kartik Purnima — November into December
Sonepur Mela
Sonepur, 25 km from Patna
Asia's largest cattle fair for a month at the Ganga–Gandak confluence: horses, birds, folk theatre, a giant bazaar and the Hariharnath temple dip.
Plan around it →Vaisakha full moon — May
Buddha Purnima
Bodh Gaya
The Buddha's birth, enlightenment and passing on one night under the Bodhi tree. Lamps, chanting, a procession — hot, but unforgettable.
Plan around it →
Fortnight before Navratri — September/October
Pitru Paksha Mela
Gaya (Vishnupad temple, Falgu river)
Hundreds of thousands come to offer pind daan for their ancestors at 45 vedis. Rooms are scarce; come for the atmosphere or come for the ritual, but book ahead.
Plan around it →Shravan month — July to August
Shravani Mela
Sultanganj to Deoghar
Saffron-clad kanwariyas fill Ganga water at Ajgaivinath and walk 105 km barefoot to Deoghar. The riverside is a month-long camp.
Plan around it →Late November
Rajgir Mahotsav
Rajgir
Three days of classical music and dance, crafts and food at the foot of the hills. Combine with the hot springs and ropeway.
Plan around it →December to January
Kagyu Monlam & winter teachings
Bodh Gaya
Tens of thousands of monks and pilgrims; the Dalai Lama often teaches at Kalachakra ground. Town is full and electric — book months ahead.
Plan around it →14 January
Makar Sankranti
Rajgir hot springs, Patna ghats, Mandar Hill
Dahi-chura and tilkut season. Bathing at Brahmakund in Rajgir and the Mandar Hill fair at Bounsi.
Plan around it →Around Mahavir Jayanti — April
Vaishali Mahotsav
Vaishali
Celebrates Mahavira's birth and the world's first republic with music and a fair at the Ashokan pillar.
Plan around it →Kartik — November
Sama Chakeva
Mithila villages, Darbhanga, Madhubani
Sisters make clay birds and sing for their brothers as migratory birds return. A Mithila festival you will not see anywhere else.
Plan around it →Shravan — July/August
Madhushravani
Mithila
Newly married women's fortnight of fasting and storytelling; homes freshly painted with Madhubani murals.
Plan around it →Phalguna full moon — March
Holi
Everywhere; Patna loudest, Barsana-style in villages
Colour, bhang, Bhojpuri folk songs. Shops close for a day — plan transport around it.
Plan around it →
Place by place
The best time to visit each of 43 places.
Magadh
| Bodh Gaya | October – March; December and January for teachings |
| Nalanda | November – February |
| Rajgir | October – March |
| Barabar Caves | October – March; go early, the granite heats up |
| Kakolat Falls | July – February; fullest in August–September |
| Pawapuri | October – March; Diwali for the nirvana festival |
| Gaya | October – March; Pitru Paksha (Sept/Oct) for the great fair |
| Rajgir Nature Safari & Ghora Katora | October – March (mornings for the skywalk; the lake is good year-round) |
| Deo Sun Temple | Kartik Chhath (Oct–Nov) for the festival; November – February otherwise |
Shahabad
| Sasaram | October – March |
| Rohtasgarh Fort | October – February; avoid monsoon (road impassable) |
| Mundeshwari Temple | October – March; Navaratri is the festival |
| Dhua Kund & Manjhar Kund | July – October for the falls at full force; November–February for cool walks (the falls shrink to streams) |
| Shergarh Fort | October – March |
| Bakhtiyar Khan's Tomb, Chainpur | October – March |
| Buxar | October – March; Kartik Purnima for the mela |
| Jagdishpur & Arrah | October – March; 23 April for Vijayotsav |
| Telhar Kund & Karkatgarh | July – October for water; the plateau is cool and dry November – February but the falls thin |
| Tutla Bhawani | August – October for the fall; October – March for the walk and Navratri |
Tirhut
| Patna | October – February; Chhath (Oct/Nov) is extraordinary |
| Vaishali | November – February |
| Maner Sharif | October – March |
| Sonepur Mela & Hariharnath | Kartik Purnima and the following two weeks (Nov–Dec) |
| Thawe Mandir | October – March; Chaitra Navratri (Mar–Apr) |
Champaran
| Valmiki National Park | November – April; closed in monsoon (June–October) |
| Kesaria Stupa | November – February |
| Valmikinagar & the Gandak | November – March (rafting season; clear skies). Monsoon closes the river and the forest. |
| Lauriya Nandangarh | November – February |
Mithila
| Kanwar Lake | November – February for birds; August–September to see the lake full |
| Darbhanga | October – March |
| Sitamarhi | October – March; Vivah Panchami (Nov–Dec) and Ram Navami (Mar–Apr) for festivals |
| Madhubani | October – March; Diwali–Chhath (Oct–Nov) for fresh wall paintings |
| Ugratara, Mahishi | October – March; Chaitra and Sharad Navratri for the melas |
| Kusheshwar Asthan | December – February for birds; Shravan (Jul–Aug) for the pilgrimage |
Anga
| Vikramshila | November – February |
| Mandar Hill | October – February; January for the fair |
| Bhagalpur | October – March |
| Sultanganj | October – March for calm; Shravan (Jul–Aug) for the Kanwar spectacle |
Munger
| Munger | October – March |
| Nagi & Nakti Bird Sanctuaries | November – February (peak numbers December–January); the hills are bakingly hot April–June |
| Simultala | November – March; February–March for the palash bloom |
| Ashok Dham, Lakhisarai | October – March; Shravan (Jul–Aug) and Shivaratri for the crowds |
| Bhimbandh Wildlife Sanctuary | November – February |
Questions people ask
- What is the best time to visit Bihar?
- January, February, November, December — dry, 8–28 °C, every site and safari open, and the big festivals (Chhath, Sonepur Mela, Bodh Gaya's teaching season) fall in this window. October and March are good shoulder months. Avoid April–June heat unless you are coming for Buddha Purnima.
- What is the best time to visit Bodh Gaya?
- November to February. December–January is teaching season with monks from across Asia; May's Buddha Purnima is extraordinary but 40 °C. Winter mornings need a jacket.
- What is the best time to visit Rajgir and Nalanda?
- October to March. The ropeway, Nature Safari glass bridge and hot springs are all pleasant then; Rajgir Mahotsav is in late November. Summer afternoons on the hills are brutal.
- When is monsoon in Bihar?
- Mid-June to September, wettest in July–August. It is the only season the Kaimur waterfalls (Telhar Kund, Kakolat, Dhua Kund) run properly — but north Bihar's rivers flood and Valmiki Tiger Reserve closes from July to September.
- When is Chhath Puja and is it worth travelling for?
- Six days after Diwali — late October or November. Yes: sunrise on the final morning at Patna's ghats is the single most moving sight in Bihar. Book trains and rooms a month ahead.
- Which months should I avoid?
- April to mid-June for heat (38–42 °C with hot loo winds), and July–August if you want to see anything other than waterfalls. Dense fog in late December–January can delay morning trains and flights.