Phan Thiết weather in December

In December, Phan Thiết sees average daytime highs of 29°C and overnight lows near 22°C, with 68 mm of rain across 7.4 wet days and about 11.4 hours of daylight. It is the 11th-warmest and 9th-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 24% of the time in December, and the air most often feels oppressive.

Daylight stretches from about 11 h 24 min at the start of December to 11 h 24 min by month's end. Set against the rest of the year, December is Phan Thiết's 6th-clearest and 9th-windiest month. For the whole year in context, see Phan Thiết's year-round climate.

Daytime high
29°
11th warmest
Overnight low
22°
3rd coldest
Rainfall
68 mm
7.4 wet days
Daylight
11 h 24 min
6:03 AM – 5:25 PM
Cloud cover
67%
6th clearest
Wind
8 km/h
9th windiest
Solar energy
4.71 kWh/m²
Travel score
5.5
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 29°C through the month.

A typical December day in Phan Thiết reaches about 29°C in the afternoon and slips back to 22°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 31°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)
12923
22923
32923
42923
52923
62923
72923
82923
92923
102922
112922
122922
132922
142922
152922
162922
172922
182922
192922
202922
212922
222922
232922
242922
252922
262922
272922
282922
292922
302922
312922

How December really feels in Phan Thiết

Once humidity and wind are folded in, December averages 7 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
7
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.

Phan Thiết weather by month

How December compares with the rest of the year at a glance. December is the 11th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 21°182.311.46.3
Feb30° / 21°71.411.66.2
Mar31° / 23°27511.95.4
Apr31° / 24°7012.612.24.1
May31° / 25°18825.512.52.8
Jun30° / 25°21225.812.62.9
Jul30° / 24°21327.212.63.0
Aug30° / 24°2112712.43.0
Sep30° / 24°23926.112.13.0
Oct30° / 24°26025.611.83.3
Nov30° / 23°11312.811.54.8
Dec29° / 22°687.411.45.5

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 24% 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 62%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14060
23961
33862
43862
53862
63763
73862
83862
93862
103862
113961
123763
133763
143763
153763
163763
173763
183664
193763
203763
213664
223763
233664
243862
253862
263961
274060
284060
294159
304357
314456

Chance of precipitation in December

Any precipitation

Phan Thiết gets around 68 mm of rain over 7.4 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 24% and peaks near 31% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)
131
230
330
430
530
630
730
830
930
1029
1129
1229
1328
1428
1527
1626
1725
1824
1923
2022
2121
2220
2319
2418
2518
2617
2716
2815
2914
3013
3113

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the oppressive band about 51% of days. Sticky, muggy-or-worse air turns up on roughly 92% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
10425683
20426673
30427663
40428653
50430633
60431632
70432622
80433612
90434602
100435592
110436582
120536572
130537562
140638542
150639541
160739531
170840511
180940501
1901041491
2001041471
2101142461
2201243441
2301244431
2401345411
2501445401
2601446391
2701547371
2801548361
2901549351
3011550341
3111650330

Wind in December

Winds average 8 km/h in December.

Across December, daily wind ranges from about 8 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 11 h 24 min at the start of December to 11 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 0 minutes over December. Sunrise moves from 5:55 AM to 6:10 AM, and sunset from 5:20 PM to 5:32 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.45:555:20
211.45:565:20
311.45:565:20
411.45:575:20
511.45:575:21
611.45:585:21
711.45:585:21
811.45:595:22
911.45:595:22
1011.46:005:22
1111.46:005:23
1211.46:015:23
1311.46:015:23
1411.46:025:24
1511.46:025:24
1611.46:035:25
1711.46:035:25
1811.46:045:26
1911.46:045:26
2011.46:055:26
2111.46:055:27
2211.46:065:27
2311.46:065:28
2411.46:075:28
2511.46:075:29
2611.46:085:29
2711.46:085:30
2811.46:085:30
2911.46:095:31
3011.46:095:31
3111.46:105:32

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.71 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 4.71 kWh/m² to a high of 6.54 kWh/m² in March across the year — December's 4.71 kWh/m² sits near the bottom.

024151015202531
Solar energy (kWh/m²)Level
14.8Bright
24.7Bright
34.7Bright
44.7Bright
54.7Bright
64.7Bright
74.7Bright
84.7Bright
94.7Bright
104.7Bright
114.7Bright
124.7Bright
134.7Bright
144.7Bright
154.7Bright
164.7Bright
174.7Bright
184.7Bright
194.7Bright
204.7Bright
214.8Bright
224.8Bright
234.8Bright
244.8Bright
254.8Bright
264.9Bright
274.9Bright
284.9Bright
294.9Bright
305.0Bright
315.0Bright
Planning a trip in December

Hazard calendar for Phan Thiết

In seasonPeak

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

Phan Thiết sits in the Pacific typhoon belt; the season peaks July–October.

Phan Thiết's rainy season runs May–October, when most of the year's rain falls.

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

Is December a good time to visit Phan Thiết?

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

5.5
Sightseeing
3rd-best month of the year
7.3
Beach & pool
4th-best month of the year

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

What to pack for Phan Thiết in December

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

In December, Phan Thiết sees daytime highs around 29°C and nights near 22°C. Pack light clothes. Worth having: sun protection. About 7 days see rain.

light clothessun protection

Sea temperature near Phan Thiết in December

The nearest coast averages about 26°C in December — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in May at about 29°C and coldest in January near 25°C.

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

24°26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan25Warm
Feb25Warm
Mar27Warm
Apr28Tropical
May29Tropical
Jun28Tropical
Jul28Tropical
Aug28Warm
Sep28Tropical
Oct28Tropical
Nov27Warm
Dec26Warm

UV index in Phan Thiết in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Phan Thiết peaks around May 10 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 13 at about 9 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highMay 10UV 13Dec 13UV 9
UV index (midday)Level
Jan11Extreme
Feb12Extreme
Mar13Extreme
Apr13Extreme
May13Extreme
Jun11Extreme
Jul12Extreme
Aug12Extreme
Sep13Extreme
Oct11Extreme
Nov10Very high
Dec9Very high

Air quality in Phan Thiết 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 Phan Thiết is worst in October — around 32 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateOct 1432 µg/m³Feb 1123 µg/m³
PM2.5 (µg/m³)Level
Jan24Moderate
Feb23Moderate
Mar26Moderate
Apr28Moderate
May28Moderate
Jun29Moderate
Jul26Moderate
Aug26Moderate
Sep30Moderate
Oct32Moderate
Nov28Moderate
Dec26Moderate
Location & terrain

Where is Phan Thiết?

Phan Thiết sits at 10.9°N, 108.1°E, 10 m above sea level, in Vietnam. The nearest listed city is Mui Ne, 20 km away.

Đưc TrọngXuân Lộc

Topography around Phan Thiết

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

Within 3 km, the terrain around Phan Thiết has only modest variations in elevation — a maximum elevation change of 44 m around an average of 4 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 361 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,844 m.

The land around Phan Thiết is covered by artificial surfaces (44%) and water (33%) within 3 km, water (37%), trees (30%) and grassland (21%) within 16 km, and trees (46%) and water (36%) within 80 km.

3 km
44 m
16 km
361 m
80 km
1,844 m
treesgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Mui Ne 20 km · La Gi 47 km · Ấp Bình Châu 74 km · Bảo Lộc 76 km · Thị Trấn Phước Bửu 88 km · Long Khánh 93 km · Đưc Trọng 94 km · Xuân Lộc 95 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 Phan Thiết (10.9289°, 108.1021°, elevation 10 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).