Hmaw Bi weather in December

In December, Hmaw Bi sees average daytime highs of 33°C and overnight lows near 21°C, with 9 mm of rain across 0.8 wet days and about 11 hours of daylight. It is the 7th-warmest and 10th-wettest month of the year here.

Day-to-day highs hold fairly steady near 33°C through the month. The sky is clear or mostly clear about 69% of the time in December, and the air most often feels muggy.

Daylight stretches from about 11 h 06 min at the start of December to 11 hours by month's end. Set against the rest of the year, December is Hmaw Bi's 4th-clearest and 7th-windiest month. For the whole year in context, see Hmaw Bi's year-round climate.

Daytime high
33°
7th warmest
Overnight low
21°
3rd coldest
Rainfall
9 mm
0.8 wet days
Daylight
11 hours
6:25 AM – 5:26 PM
Cloud cover
30%
4th clearest
Wind
6 km/h
7th windiest
Solar energy
4.87 kWh/m²
Travel score
4.8
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 33°C through the month.

A typical December day in Hmaw Bi reaches about 33°C in the afternoon and slips back to 21°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 30°C and 35°C. Set against its neighbours, December runs on par with November and on par with January.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13323
23323
33323
43322
53322
63322
73322
83322
93322
103322
113322
123322
133322
143321
153321
163321
173321
183221
193221
203221
213221
223221
233221
243221
253220
263220
273220
283220
293220
303220
313220

How December really feels in Hmaw Bi

Once humidity and wind are folded in, December averages 31 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
31
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in December is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Hmaw Bi weather by month

How December compares with the rest of the year at a glance. December is the 7th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan33° / 20°7111.14.7
Feb34° / 21°30.711.43.7
Mar35° / 24°203.611.92.9
Apr36° / 26°699.512.42.4
May33° / 26°39526.512.82.2
Jun31° / 26°70030132.3
Jul30° / 26°78330.912.92.5
Aug30° / 25°75430.912.62.5
Sep31° / 25°5112912.12.3
Oct33° / 25°19520.611.62.8
Nov33° / 24°34511.24.0
Dec33° / 21°90.8114.8

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 69% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 14% of December, with mostly cloudy or overcast conditions the remaining 17%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17723
27822
37822
47921
57921
67921
78020
88020
98020
108119
118119
128317
138317
148416
158515
168614
178614
188713
198713
208713
218713
228713
238713
248713
258713
268713
278713
288515
298515
308416
318416

Chance of precipitation in December

Any precipitation

Hmaw Bi gets around 9 mm of rain over 0.8 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 3% and peaks near 6% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
16
25
35
45
54
64
74
83
93
103
113
123
133
143
153
163
173
183
193
203
213
223
233
243
253
263
273
283
293
303
314

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

Most of December feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, December lands in the muggy band about 38% of days. Sticky, muggy-or-worse air turns up on roughly 70% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1138353518
2149363417
3149363415
41410373314
51510383313
61511383312
71512383311
8151338339
9161438338
10161538337
11171538336
12171638325
13181737324
14291836324
15291936313
162102035302
172102135292
183112235291
193112335271
203112435261
214112435251
224112536240
234112536230
244112637210
254112638200
264102740190
274102640190
28492642180
29492642180
30482643190
31372644190

Wind in December

Winds average 6 km/h in December.

Across December, daily wind ranges from about 6 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 11 h 06 min at the start of December to 11 hours by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over December. Sunrise moves from 6:17 AM to 6:32 AM, and sunset from 5:22 PM to 5:33 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.16:175:22
211.16:175:22
311.16:185:22
411.16:195:22
511.16:195:23
611.06:205:23
711.06:205:23
811.06:215:23
911.06:215:24
1011.06:225:24
1111.06:235:24
1211.06:235:25
1311.06:245:25
1411.06:245:25
1511.06:255:26
1611.06:255:26
1711.06:265:27
1811.06:265:27
1911.06:275:27
2011.06:275:28
2111.06:285:28
2211.06:285:29
2311.06:295:29
2411.06:295:30
2511.06:305:30
2611.06:305:31
2711.06:315:31
2811.06:315:32
2911.06:315:32
3011.06:325:33
3111.06:325:33

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.87 kWh/m².

For context, solar energy here swings from a low near 2.89 kWh/m² to a high of 6.49 kWh/m² in April across the year — December's 4.87 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.8Bright
44.8Bright
54.8Bright
64.8Bright
74.8Bright
84.8Bright
94.8Bright
104.8Bright
114.8Bright
124.8Bright
134.8Bright
144.8Bright
154.9Bright
164.9Bright
174.9Bright
184.9Bright
194.9Bright
204.9Bright
214.9Bright
224.9Bright
234.9Bright
244.9Bright
254.9Bright
264.9Bright
274.9Bright
284.9Bright
294.9Bright
304.9Bright
314.9Bright
Planning a trip in December

Hazard calendar for Hmaw Bi

In seasonPeak

In December, Hmaw Bi sits inside its cyclone season. The full year is below, with each hazard's peak months called out.

Hmaw Bi sits in the North Indian Ocean cyclone zone; the season peaks May and October–November.

Hmaw Bi's monsoon runs May–September, when most of the year's rain falls.

Cyclone
Monsoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is December a good time to visit Hmaw Bi?

Our two travel scores rate December for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

4.8
Sightseeing
1st-best month of the year
8.1
Beach & pool
2nd-best month of the year

December is a reasonable time to visit Hmaw Bi for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Hmaw Bi in December

From December's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In December, Hmaw Bi sees daytime highs around 33°C and nights near 21°C. Pack light clothes. Worth having: sun protection.

light clothessun protection

Sea temperature near Hmaw Bi in December

The nearest coast averages about 28°C in December — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 26 km away) is warmest in April at about 30°C and coldest in January near 27°C.

The water stays above 20°C all year — warm enough for a swim any month.

26°28°30°32°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan27Warm
Feb28Warm
Mar29Tropical
Apr30Tropical
May30Tropical
Jun29Tropical
Jul28Tropical
Aug28Tropical
Sep28Tropical
Oct29Tropical
Nov29Tropical
Dec28Warm

UV index in Hmaw Bi in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Hmaw Bi peaks around August 11 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 7 (very high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highAug 11UV 13Dec 19UV 7
UV index (midday)Level
Jan8Very high
Feb10Very high
Mar10Very high
Apr10Very high
May11Extreme
Jun12Extreme
Jul13Extreme
Aug13Extreme
Sep11Extreme
Oct10Extreme
Nov8Very high
Dec7Very high

Air quality in Hmaw Bi in December

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where December falls, not just the annual average.

Air quality in Hmaw Bi is worst in February — around 50 µg/m³ PM2.5 (poor), about 3.5× the cleanest month (June, 15 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModerateFeb 1649 µg/m³Jun 2115 µg/m³
PM2.5 (µg/m³)Level
Jan40Poor
Feb50Poor
Mar42Poor
Apr28Moderate
May19Moderate
Jun15Moderate
Jul16Moderate
Aug16Moderate
Sep15Moderate
Oct17Moderate
Nov23Moderate
Dec30Moderate
Location & terrain

Where is Hmaw Bi?

Hmaw Bi sits at 16.6°N, 97.6°E, 13 m above sea level, in Myanmar. The nearest listed city is Martaban, 12 km away.

Topography around Hmaw Bi

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Hmaw Bi.

Within 3 km, the terrain around Hmaw Bi has only modest variations in elevation — a maximum elevation change of 46 m around an average of 4 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 853 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,039 m.

The land around Hmaw Bi is covered by cropland (56%) and water (25%) within 3 km, cropland (44%) and trees (34%) within 16 km, and trees (43%), water (27%) and cropland (24%) within 80 km.

3 km
46 m
16 km
853 m
80 km
2,039 m
treesgrasslandcroplandartificial surfaceswater
December weather nearby: Martaban 12 km · Mawlamyine 16 km · Paung 17 km · Hpa-An 28 km · Thaton 41 km · Mudon 44 km · Kyaikkami 62 km · Kawkareik 67 km

Myanmar travel facts

Travel advisory
Level 4
Do Not Travel
Power plugs
Type A / C / D / F / G / I
230 V · 50 Hz
Prices
≈ 38% of US
price level, 2025
GDP per capita
$1,489
2025
Happiness
4.3 / 10
World Happiness, 2025
Safe drinking water
60%
of population, 2024
Homicide rate
2.6
per 100k, 2023
Road deaths
20.4
per 100k/yr, 2019
Income group
Lower middle
World Bank
English
Very low
EF EPI 444
Religion
Buddhist 88%Christian 6%Muslim 4%Animist 1%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Hmaw Bi (16.6356°, 97.6153°, elevation 13 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).