Myanmar — formerly Burma — stretches from the high Himalayas in the north to the tropical beaches of the Tanintharyi coast in the south, a distance of over 2,000 kilometres. This enormous latitudinal range, combined with significant mountain ranges and two long coastlines, gives Myanmar one of the most varied climates in mainland Southeast Asia.
Climate
Most of Myanmar has a tropical monsoon climate with three distinct seasons: cool, hot and rainy. The southwest monsoon dominates from mid-May through October, bringing torrential rainfall to the coast and to the Irrawaddy delta. The northeast monsoon from November to February is cool and dry across most of the country. March through mid-May is the hot dry season, with central Myanmar experiencing some of the highest temperatures in Southeast Asia.
Elevation matters enormously in Myanmar. The central "dry zone" around Bagan and Mandalay receives only 500–1,000 mm of rain per year and can feel genuinely arid by tropical Southeast Asian standards. The coastal belt around Sittwe and the Tanintharyi region receives over 4,000 mm. The northern mountains around Putao and Hkakabo Razi have alpine climates with regular winter snowfall above 3,000 metres.
Myanmar is affected by cyclones that form in the Bay of Bengal and can make landfall with devastating force. Unlike the Philippines' frequent typhoons, Bay of Bengal cyclones are rarer — perhaps one or two per year reach Myanmar's coast — but they tend to be catastrophic when they do. Cyclone Nargis in 2008 killed more than 138,000 people in the Irrawaddy delta.
Seasons
Cool dry (November – February)
The most comfortable time of year. Daytime temperatures in Yangon are around 30°C with low humidity, while Mandalay and Bagan cool off at night to 15°C or lower. Inle Lake, at 880 metres elevation, can drop near freezing at dawn in January. The skies are clear and this is peak tourist season.
Hot dry (March – May)
Central Myanmar (Mandalay, Bagan, Nay Pyi Taw) gets extraordinarily hot in April and early May. Daytime temperatures regularly exceed 40°C and can approach 43°C. This is also the traditional time for the Thingyan water festival (Burmese New Year, mid-April), held specifically to cool down during the hottest week. Humidity rises through May as the monsoon approaches.
Wet / monsoon (May – October)
The southwest monsoon arrives in mid-May and brings torrential rainfall to Yangon, the Irrawaddy delta and the Rakhine coast. June through August sees continuous heavy rain, often with flooding. The central dry zone around Bagan and Mandalay gets significantly less rain than the coast — this rain shadow effect is why the ancient capitals were built there. The countryside becomes vividly green and rice planting is at its peak.
End of monsoon (October)
Rainfall tapers off through October. The Thadingyut Festival of Lights is celebrated at the end of October, marking the end of Buddhist Lent. Cyclone risk remains elevated through November for Bay of Bengal systems, though post-monsoon cyclones are less common than pre-monsoon ones.
Extreme weather events
Cyclone Nargis (May 2008) was the worst natural disaster in Myanmar's modern history, killing more than 138,000 people in the low-lying Irrawaddy delta. Cyclone Mocha (May 2023) was another major landfall, striking the Rakhine coast. The central dry zone has experienced serious droughts during El Niño years. Extreme heat in Mandalay and Bagan has pushed temperatures above 46°C in several recent years, ranking among the highest ever recorded in Southeast Asia.
Regional variation
The central dry zone (Mandalay, Bagan, Nay Pyi Taw) is significantly drier and hotter than the rest of the country. Bagan receives only about 600 mm of rain per year — less than a quarter of Yangon. This is why the thousands of temples at Bagan have survived for a thousand years.
The Yangon / Irrawaddy delta region is flat, humid and strongly monsoonal. It receives over 2,700 mm of rain annually and is extremely exposed to Bay of Bengal cyclones.
Rakhine State on the western coast has the heaviest monsoon rainfall in the country, over 4,000 mm per year, and is the main cyclone landfall zone.
Shan State, including Inle Lake, sits on the Shan Plateau at 800–1,500 metres elevation and has a noticeably cooler climate year-round. Winter nights can drop near freezing.
The far north (Putao, Hkakabo Razi) has a temperate-to-alpine climate with heavy winter snowfall above 3,000 metres. Hkakabo Razi, at 5,881 metres, is the highest point in Southeast Asia.
Best time to visit
The best time to visit Myanmar is November through February — the cool dry season with clear skies, low humidity and comfortable temperatures. December and January are ideal. Mandalay and Bagan are wonderful in December with cool mornings and warm afternoons. Avoid April if you don't like extreme heat (Bagan in April is punishingly hot). The wet season, while challenging, can be rewarding for photographers — the countryside is at its most beautiful and tourist crowds are minimal.
Climate facts
- Bagan receives only about 600 mm of rain per year — less than Madrid — which is one reason its 11th-century temples have survived so well.
- The Thingyan (Burmese New Year) water festival is deliberately timed for mid-April, the hottest week of the year.
- Hkakabo Razi in Kachin State is the highest mountain in Southeast Asia at 5,881 metres and has a fully alpine climate with permanent snow and ice.
- Cyclone Nargis in 2008 was one of the deadliest tropical cyclones in recorded world history, striking a densely populated and low-lying delta.