Cẩm Phả Mines weather in December

In December, Cẩm Phả Mines sees average daytime highs of 20°C and overnight lows near 17°C, with 48 mm of rain across 7.7 wet days and about 10.7 hours of daylight. It is the 10th-warmest and 11th-wettest month of the year here.

Highs ease over the month, from about 21°C in the first days to 19°C by the end. The sky is clear or mostly clear about 33% of the time in December, and the air most often feels dry.

Daylight stretches from about 10 h 48 min at the start of December to 10 h 42 min by month's end. Set against the rest of the year, December is Cẩm Phả Mines's 3rd-clearest and 1st-windiest month. For the whole year in context, see Cẩm Phả Mines's year-round climate.

Daytime high
20°
10th warmest
Overnight low
17°
3rd coldest
Rainfall
48 mm
7.7 wet days
Daylight
10 h 42 min
6:25 AM – 5:09 PM
Cloud cover
59%
3rd clearest
Wind
15 km/h
1st windiest
Solar energy
2.98 kWh/m²
Travel score
6.6
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 21°C in the first days to 19°C by the end.

A typical December day in Cẩm Phả Mines reaches about 20°C in the afternoon and slips back to 17°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 17°C and 23°C. Set against its neighbours, December runs about 4°C cooler than November and about 2°C warmer than January.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
12219
22218
32118
42118
52118
62118
72118
82118
92017
102017
112017
122017
132017
142017
152017
162017
172017
182016
191916
201916
211916
221916
231916
241916
251916
261916
271916
281916
291916
301916
311916

How December really feels in Cẩm Phả Mines

Once humidity and wind are folded in, December averages 0 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
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

December sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Cẩm Phả Mines weather by month

How December compares with the rest of the year at a glance. December is the 10th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan18° / 15°6111.410.95.5
Feb19° / 16°4410.511.35.6
Mar21° / 19°6412.111.95.9
Apr24° / 22°6510.312.56.5
May28° / 25°20017.5135.0
Jun30° / 27°28821.413.33.5
Jul30° / 27°37323.413.13.4
Aug30° / 27°43124.512.73.4
Sep29° / 26°29619.912.14.2
Oct27° / 24°12611.911.56.4
Nov24° / 21°598.9117.2
Dec20° / 17°487.710.76.6

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 33% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 12% of December, with mostly cloudy or overcast conditions the remaining 55%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15347
25149
35149
44951
54852
64753
74654
84555
94456
104456
114258
124258
134258
144258
154357
164357
174357
184456
194456
204456
214555
224654
234654
244654
254654
264654
274555
284456
294456
304357
314258

Chance of precipitation in December

Any precipitation

Cẩm Phả Mines gets around 48 mm of rain over 7.7 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 26% and peaks near 30% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
127
227
327
426
526
626
726
825
925
1025
1125
1225
1325
1424
1524
1624
1724
1824
1924
2024
2124
2224
2324
2425
2525
2626
2726
2827
2928
3029
3130

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the dry band about 41% of days. Sticky, muggy-or-worse air turns up on roughly 17% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1272323188
2292323188
3302322177
4322322177
5332322166
6342221166
7362221165
8372221155
9392121154
10402121154
11422020153
12431920153
13441920153
14451820152
15461820152
16461719152
17471719152
18471719142
19471819141
20471820141
21471820131
22471920131
23472020121
24472021121
25462121111
26452122111
27442223110
28432224110
29422224110
30422225110
31412226110

Wind in December

Winds average 15 km/h in December, the windiest month of the year.

Across December, daily wind ranges from about 15 km/h on the calmest days to 15 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
115light breeze
215light breeze
315light breeze
415light breeze
515light breeze
615light breeze
715light breeze
815light breeze
915light breeze
1015light breeze
1115light breeze
1215light breeze
1315light breeze
1415light breeze
1515light breeze
1615light breeze
1715light breeze
1815light breeze
1915light breeze
2015light breeze
2115light breeze
2215light breeze
2315light breeze
2415light breeze
2515light breeze
2615light breeze
2715light breeze
2815light breeze
2915light breeze
3015light breeze
3115light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 10 h 48 min at the start of December to 10 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over December. Sunrise moves from 6:16 AM to 6:32 AM, and sunset from 5:05 PM to 5:16 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.86:165:05
210.86:175:05
310.86:175:05
410.86:185:05
510.86:195:06
610.86:195:06
710.86:205:06
810.86:205:06
910.86:215:07
1010.86:225:07
1110.76:225:07
1210.76:235:07
1310.76:235:08
1410.76:245:08
1510.76:255:08
1610.76:255:09
1710.76:265:09
1810.76:265:10
1910.76:275:10
2010.76:275:11
2110.76:285:11
2210.76:285:11
2310.76:295:12
2410.76:295:12
2510.76:295:13
2610.76:305:13
2710.76:305:14
2810.76:315:14
2910.76:315:15
3010.76:315:16
3110.76:325:16

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 2.98 kWh/m².

For context, solar energy here swings from a low near 2.72 kWh/m² to a high of 5.16 kWh/m² in May across the year — December's 2.98 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.2Moderate
23.1Moderate
33.1Moderate
43.1Moderate
53.1Moderate
63.0Moderate
73.0Moderate
83.0Moderate
93.0Moderate
103.0Moderate
113.0Moderate
122.9Moderate
132.9Moderate
142.9Moderate
152.9Moderate
163.0Moderate
173.0Moderate
183.0Moderate
193.0Moderate
203.0Moderate
213.0Moderate
223.0Moderate
233.0Moderate
243.0Moderate
253.0Moderate
263.0Moderate
273.0Moderate
282.9Moderate
292.9Moderate
302.9Moderate
312.9Moderate
Planning a trip in December

Hazard calendar for Cẩm Phả Mines

In seasonPeak

In December, Cẩm Phả Mines sits inside its pacific typhoon season. The full year is below, with each hazard's peak months called out.

Cẩm Phả Mines sits in the Pacific typhoon belt; the season peaks July–October.

Cẩm Phả Mines's monsoon runs May–September, when most of the year's rain falls.

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

Is December a good time to visit Cẩm Phả Mines?

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

6.6
Sightseeing
2nd-best month of the year
3.4
Beach & pool
10th-best month of the year

December is a reasonable time to visit Cẩm Phả Mines for sightseeing.

What to pack for Cẩm Phả Mines in December

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

In December, Cẩm Phả Mines sees daytime highs around 20°C and nights near 17°C. Little to plan around — just the basics. About 8 days see rain.

Sea temperature near Cẩm Phả Mines in December

The nearest coast averages about 22°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 18 km away) is warmest in August at about 30°C and coldest in February near 19°C.

It's comfortable for a long swim from Mar 13 to Jan 10 — about 10 months when the water holds above 20°C.

20°25°30°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan20Cool
Feb19Cool
Mar20Refreshing
Apr23Refreshing
May27Warm
Jun29Tropical
Jul29Tropical
Aug30Tropical
Sep29Tropical
Oct28Warm
Nov25Warm
Dec22Refreshing

UV index in Cẩm Phả Mines in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Cẩm Phả Mines peaks around July 11 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 17 at about 6 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecHighVery highExtremeVery highHighJul 11UV 12Dec 17UV 6
UV index (midday)Level
Jan7High
Feb8Very high
Mar9Very high
Apr8Very high
May10Extreme
Jun12Extreme
Jul13Extreme
Aug8Very high
Sep9Very high
Oct9Very high
Nov7High
Dec6High

Air quality in Cẩm Phả Mines 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 Cẩm Phả Mines is worst in January — around 42 µg/m³ PM2.5 (poor), about 2.6× the cleanest month (July, 16 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModeratePoorJan 2342 µg/m³Jul 1716 µg/m³
PM2.5 (µg/m³)Level
Jan42Poor
Feb42Poor
Mar41Poor
Apr40Poor
May26Moderate
Jun19Moderate
Jul16Moderate
Aug18Moderate
Sep21Moderate
Oct27Moderate
Nov29Moderate
Dec39Poor
Location & terrain

Where is Cẩm Phả Mines?

Cẩm Phả Mines sits at 21.0°N, 107.3°E, 209 m above sea level, in Vietnam. The nearest listed city is Cẩm Phả, 3.0 km away.

Topography around Cẩm Phả Mines

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Cẩm Phả Mines.

Within 3 km, the terrain around Cẩm Phả Mines has significant variations in elevation — a maximum elevation change of 547 m around an average of 91 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,012 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,582 m.

The land around Cẩm Phả Mines is covered by bare terrain (36%), artificial surfaces (26%) and trees (23%) within 3 km, trees (44%) and water (42%) within 16 km, and water (50%) and trees (41%) within 80 km.

3 km
547 m
16 km
1,012 m
80 km
1,582 m
treesgrasslandcroplandartificial surfacesbare terrainwatermangroves
December weather nearby: Cẩm Phả 3.0 km · Ha Long 25 km · Thị Trấn Ba Chẽ 28 km · Thị Trấn Tiên Yên 37 km · Cát Bà 41 km · Thị Trấn Đầm Hà 48 km · Thành Phố Uông Bí 55 km · Đố Sơn 63 km

Vietnam travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type A / B / C / F
220 V · 50 Hz
Prices
≈ 29% of US
price level, 2025
GDP per capita
$5,066
2025
Happiness
6.4 / 10
World Happiness, 2025
Safe drinking water
59%
of population, 2024
Homicide rate
1.5
per 100k, 2011
Road deaths
30.6
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Moderate
EF EPI 500
Religion
none 86%Catholic 6%Buddhist 6%Protestant 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 Cẩm Phả Mines (21.0167°, 107.3°, elevation 209 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).