Hmaw Bi climate — normals and trends
Hmaw Bi (Myanmar) has a tropical monsoon climate (Am) under the Köppen-Geiger classification. Its mean annual temperature is 27.1 °C and it receives 3,449 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is April (29.7 °C on average) and the coldest is January (25.0 °C). Rainfall peaks in July.
Hmaw Bi averages 0 frost days, 270 hot days (≥ 30 °C) and 194 rainy days per year.
Hmaw Bi has warmed by +2.1 °C between 1940 and 2025, or +0.25 °C per decade. This trend is statistically significant.
The hottest day of the period reached 40.3 °C (on 18 March 2002) and the coldest 10.2 °C (on 25 December 1999).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
Hmaw BiMon
- coords
- 16.64°, 97.62°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
27.1°C
Average daily high
31.8°C
Average daily low
23.7°C
Annual rainfall
3,449mm
Sunshine / day
8.9h
Mean relative humidity
80%
Average peak wind
12.1km/h
Seasonal range
4.7°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
270 d/yr
Rainy days (≥ 1 mm)
194 d/yr
Annual snowfall
0.0 cm
Average feels-like high
37.0 °C
Average feels-like low
28.1 °C
Average peak gust
30.0 km/h
Tropical nights (≥ 20 °C)
326 d/yr
Solar radiation
17.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.1 °C
since 1940
+0.3 °C per decade · r² = 0.86 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
40.3 °C
18 March 2002
Coldest day
10.2 °C
25 December 1999
Wettest day
377 mm
5 June 1958
Windiest day
48.9 km/h
3 May 2008
Strongest gust
107.3 km/h
3 May 2008
Hottest feels-like
48.4 °C
8 May 2003
Coldest feels-like
8.7 °C
26 December 1999
Sunniest day
13.0 h
14 June 1953
Normals computed over complete calendar years 1940–2025.
A specific year
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Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 33.1 °C | +1.0 °C | 0 mm | -9 mm |
| Feb | 35.0 °C | +1.3 °C | 6 mm | -1 mm |
| Mar | 36.5 °C | +1.7 °C | 6 mm | -12 mm |
| Apr | 34.3 °C | -0.6 °C | 155 mm | +89 mm |
| May | 32.8 °C | +0.7 °C | 400 mm | +3 mm |
| Jun | 30.3 °C | +0.6 °C | 864 mm | +152 mm |
| Jul | 29.5 °C | +0.2 °C | 956 mm | +214 mm |
| Aug | 30.5 °C | +1.3 °C | 646 mm | -80 mm |
| Sep | 30.6 °C | +0.3 °C | 553 mm | +45 mm |
| Oct | 33.0 °C | +1.1 °C | 179 mm | -37 mm |
| Nov | 31.0 °C | -1.3 °C | 190 mm | +149 mm |
| Dec | 32.7 °C | +0.9 °C | 0 mm | -8 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Hmaw Bi?
Hmaw Bi has a tropical monsoon climate (Köppen Am). Over 1940-2025, the average annual temperature is 27.1 °C and it receives 3,449 mm of precipitation per year.
What is the hottest day ever recorded in Hmaw Bi?
The hottest day measured in Hmaw Bi between 1940 and 2025 was 18 March 2002, reaching 40.3 °C.
What is the coldest day in Hmaw Bi?
The coldest day measured in Hmaw Bi between 1940 and 2025 was 25 December 1999, at 10.2 °C.
Does it snow in Hmaw Bi?
Almost never: Hmaw Bi sees virtually no snow, with about 0 frost days per year.
Has the climate of Hmaw Bi warmed?
Yes: Hmaw Bi warmed by +2.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Hmaw Bi?
The wettest day measured in Hmaw Bi between 1940 and 2025 was 5 June 1958, with 377 mm of rain in 24 hours.
What was the windiest day in Hmaw Bi?
The windiest day measured in Hmaw Bi between 1940 and 2025 was 3 May 2008, with winds reaching 48.9 km/h.
What is the warmest month in Hmaw Bi?
The warmest month in Hmaw Bi is April (29.7 °C on average); the coldest is January (25.0 °C).
How much does it rain in Hmaw Bi?
Hmaw Bi receives on average 3,449 mm of precipitation per year, spread over about 194 rainy days.
Is it sunny in Hmaw Bi?
Hmaw Bi gets on average 8.9 hours of sunshine per day, roughly 3,249 hours per year over 1940-2025.
Are there tropical nights in Hmaw Bi?
Yes: Hmaw Bi has on average 326 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Hmaw Bi?
In Hmaw Bi, between 1940 and 2025, the highest apparent temperature reached 48.4 °C on 8 May 2003, and the lowest was 8.7 °C on 26 December 1999.
Compare Hmaw Bi with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Hmaw Bi