Weather in Yangon

On this site the months that score closest to a 22°C day, lighter rain, and moderate humidity are December, January, and February. Yangon is in Myanmar at 16.8°N. The 2001–2020 NASA POWER daily record describes a monsoon climate with a sharp wet-dry split.

April is the warmest month (average 33.0°C, high 39.9°C) and December is the coolest (average 25.8°C, low 19.8°C). Rain is the monsoon runs from May to October, inside an annual total of 1235 mm. The wettest month is July at 280 mm; the driest is February at 1 mm.

Temperature through the year

Yangon has a 7.2°C gap between its coolest monthly average (25.8°C in December) and its warmest (33.0°C in April). That is a northern-hemisphere pattern.

Across the year the mean afternoon high is 33.6°C. If you want the smallest day–night shock, look at months where the high and low sit close together; April nights still hold 26.2°C.

Monsoon and dry months

The monsoon in Yangon starts in May and ends in October (May, June, July, August, September, and October). July is the core of it at 280 mm. February is the other extreme, with 1 mm.

Humidity peaks near 85%. That usually lines up with the wetter months rather than the hottest ones.

The calendar in Yangon

February is the driest month, averaging only 1 mm across 0 rainy days. Highs sit near 36.5°C. Peak heat arrives in April: 39.9°C by day, 26.2°C at night, and 50% humidity. The monsoon opens in May. Expect 127 mm and 15 rainy days, with nights around 26.8°C. In June, Yangon averages 32.0°C by day and 25.6°C at night, with 225 mm of rain.

July is the wettest month — 280 mm and 24 rainy days, with 84% humidity. September brings 164 mm and 19 rainy days; temperatures run from 24.7°C to 30.8°C. In November, Yangon averages 32.0°C by day and 22.6°C at night, with 20 mm of rain. The year bottoms out in December. Plan for 19.8°C at night and 31.8°C in the afternoon.

When the score favours a visit

The three months with the highest comfort score are December, January, and February: December (25.8°C average, 7 mm, 66% humidity); January (26.0°C average, 8 mm, 57% humidity); February (28.2°C average, 1 mm, 46% humidity). Those months sit across the year end, so they are listed in season order rather than January-to-December. The score rewards averages near 22°C, lower rainfall, and humidity near 60%. It is a climate score, not a festival or price calendar.

If you want the monsoon itself — fewer crowds, greener landscape, heavier rain — aim at May–October instead of the score.

Yangon and other cities in Myanmar

Mandalay is about 575 km away: Yangon is 1.5°C warmer than Mandalay in its hottest month and 974 mm wetter over the year than Mandalay. Mandalay’s wettest month is June (44 mm) versus July here.