Sơn Trà weather in January

In January, Sơn Trà sees average daytime highs of 24°C and overnight lows near 20°C, with 178 mm of rain across 16.9 wet days and about 11.2 hours of daylight. It is the 12th-warmest and 5th-wettest month of the year here.

Day-to-day highs hold fairly steady near 24°C through the month. The sky is clear or mostly clear about 19% of the time in January, and the air most often feels muggy.

Daylight stretches from about 11 h 06 min at the start of January to 11 h 18 min by month's end. Set against the rest of the year, January is Sơn Trà's 5th-clearest and 3rd-windiest month. For the whole year in context, see Sơn Trà's year-round climate.

Daytime high
24°
12th warmest
Overnight low
20°
1st coldest
Rainfall
178 mm
16.9 wet days
Daylight
11 h 06 min
6:22 AM – 5:31 PM
Cloud cover
68%
5th clearest
Wind
11 km/h
3rd windiest
Solar energy
3.17 kWh/m²
Travel score
5.7
out of 10

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 24°C through the month.

A typical January day in Sơn Trà reaches about 24°C in the afternoon and slips back to 20°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 21°C and 26°C. Set against its neighbours, January runs on par with December and about 1°C cooler than February.

15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12421
22421
32421
42421
52421
62421
72421
82421
92421
102421
112421
122421
132420
142420
152420
162420
172420
182420
192320
202320
212320
222320
232320
242320
252320
262320
272320
282320
292320
302320
312420

How January really feels in Sơn Trà

Once humidity and wind are folded in, January 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

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

Sơn Trà weather by month

How January compares with the rest of the year at a glance. January is the 12th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan24° / 20°17816.911.25.7
Feb24° / 21°9011.211.56.6
Mar27° / 23°879.711.96.7
Apr29° / 25°768.712.45.6
May31° / 26°11815.712.73.8
Jun32° / 28°8414.512.93.1
Jul32° / 27°11316.412.93.1
Aug32° / 27°14719.312.53.0
Sep30° / 26°28922.712.13.3
Oct28° / 25°42224.511.64.1
Nov26° / 23°46022.111.34.7
Dec24° / 21°35322.811.14.8

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 19% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 18% of January, with mostly cloudy or overcast conditions the remaining 64%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13367
23367
33367
43466
53466
63466
73466
83664
93664
103664
113664
123664
133664
143763
153664
163664
173664
183664
193664
203664
213664
223664
233763
243763
253763
263862
273961
284060
294159
304258
314357

Chance of precipitation in January

Any precipitation

Sơn Trà gets around 178 mm of rain over 16.9 wet days in January. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 55% and peaks near 61% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
161
261
360
459
559
658
758
857
957
1057
1157
1257
1357
1457
1557
1656
1756
1856
1955
2055
2154
2254
2353
2453
2552
2651
2751
2850
2950
3049
3148

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, January lands in the muggy band about 48% of days. Sticky, muggy-or-worse air turns up on roughly 68% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
117225021
217215021
317215021
407225021
507225022
607224922
707224922
807224822
907224823
1006234823
1106234723
1206244723
1306244723
1406244722
1506254722
1606254722
1706254721
1806264721
1906264820
2016274819
2115274819
2215274818
2315284818
2415284918
2515284817
2615284817
2716284817
2816284717
2916284718
3016284618
3116284619

Wind in January

Winds average 11 km/h in January.

Across January, daily wind ranges from about 11 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm
3111calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 11 h 06 min at the start of January to 11 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 12 minutes over January. Sunrise moves from 6:18 AM to 6:22 AM, and sunset from 5:22 PM to 5:39 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.16:185:22
211.16:195:23
311.16:195:23
411.16:195:24
511.16:205:24
611.16:205:25
711.16:205:25
811.16:215:26
911.16:215:27
1011.16:215:27
1111.16:215:28
1211.16:215:28
1311.16:225:29
1411.16:225:29
1511.16:225:30
1611.16:225:31
1711.16:225:31
1811.26:225:32
1911.26:225:32
2011.26:235:33
2111.26:235:33
2211.26:235:34
2311.26:235:35
2411.26:235:35
2511.26:235:36
2611.26:235:36
2711.26:225:37
2811.26:225:37
2911.36:225:38
3011.36:225:38
3111.36:225:39

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 3.17 kWh/m².

For context, solar energy here swings from a low near 2.56 kWh/m² to a high of 6.29 kWh/m² in May across the year — January's 3.17 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
12.9Moderate
22.9Moderate
32.9Moderate
43.0Moderate
53.0Moderate
63.0Moderate
73.0Moderate
83.0Moderate
93.1Moderate
103.1Moderate
113.1Moderate
123.1Moderate
133.1Moderate
143.1Moderate
153.1Moderate
163.1Moderate
173.1Moderate
183.2Moderate
193.2Moderate
203.2Moderate
213.2Moderate
223.2Moderate
233.3Moderate
243.3Moderate
253.3Moderate
263.3Moderate
273.4Moderate
283.4Moderate
293.4Moderate
303.5Moderate
313.5Moderate
Planning a trip in January

Hazard calendar for Sơn Trà

In seasonPeak

In January, Sơn Trà sits inside its pacific typhoon season. The full year is below, with each hazard's peak months called out.

Sơn Trà sits in the Pacific typhoon belt; the season peaks July–October.

Sơn Trà's monsoon runs September–December, when most of the year's rain falls.

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

Is January a good time to visit Sơn Trà?

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

5.7
Sightseeing
3rd-best month of the year
4.7
Beach & pool
8th-best month of the year

January is a reasonable time to visit Sơn Trà for sightseeing.

What to pack for Sơn Trà in January

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

In January, Sơn Trà sees daytime highs around 24°C and nights near 20°C. Pack rain gear. Worth having: light clothes. About 17 days see rain.

rain gearlight clothes

Sea temperature near Sơn Trà in January

The nearest coast averages about 24°C in January — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 17 km away) is warmest in August at about 30°C and coldest in February near 23°C.

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

25°30°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan24Refreshing
Feb23Refreshing
Mar24Refreshing
Apr25Warm
May28Warm
Jun29Tropical
Jul29Tropical
Aug30Tropical
Sep29Tropical
Oct28Warm
Nov27Warm
Dec25Warm

UV index in Sơn Trà in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January 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 Sơn Trà peaks around August 12 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 at about 6 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highHighAug 12UV 13Dec 16UV 6
UV index (midday)Level
Jan9Very high
Feb10Very high
Mar11Extreme
Apr11Extreme
May11Extreme
Jun12Extreme
Jul12Extreme
Aug13Extreme
Sep12Extreme
Oct11Extreme
Nov8Very high
Dec6High

Air quality in Sơn Trà in January

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Sơn Trà is worst in March — around 49 µg/m³ PM2.5 (poor), about 3.0× the cleanest month (July, 16 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateMar 2048 µg/m³Jul 2416 µg/m³
PM2.5 (µg/m³)Level
Jan25Moderate
Feb29Moderate
Mar49Poor
Apr42Poor
May28Moderate
Jun21Moderate
Jul16Moderate
Aug17Moderate
Sep20Moderate
Oct22Moderate
Nov21Moderate
Dec23Moderate
Location & terrain

Where is Sơn Trà?

Sơn Trà sits at 16.1°N, 108.2°E, 8 m above sea level, in Vietnam. The nearest listed city is An Hải, 1.0 km away.

Topography around Sơn Trà

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

Within 3 km, the terrain around Sơn Trà has only modest variations in elevation — a maximum elevation change of 20 m around an average of 6 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 683 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,755 m.

The land around Sơn Trà is covered by artificial surfaces (62%) and water (28%) within 3 km, water (52%) within 16 km, and trees (45%) and water (45%) within 80 km.

3 km
20 m
16 km
683 m
80 km
1,755 m
treesgrasslandcroplandartificial surfacesbare terrainwater
January weather nearby: An Hải 1.0 km · Da Nang 1.0 km · Thanh Khê 5.0 km · Cẩm Lệ 6.0 km · Hòa Cường 6.0 km · Hải Châu 19 km · Điện Bàn 19 km · Hoi An 23 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 Sơn Trà (16.0607°, 108.2326°, elevation 8 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).