Sơn La weather in June

In June, Sơn La sees average daytime highs of 30°C and overnight lows near 23°C, with 209 mm of rain across 23 wet days and about 13.3 hours of daylight. It is the 2nd-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 3% of the time in June, and the air most often feels oppressive.

Daylight stretches from about 13 h 12 min at the start of June to 13 h 18 min by month's end. Set against the rest of the year, June is Sơn La's 12th-clearest and 9th-windiest month. For the whole year in context, see Sơn La's year-round climate.

Daytime high
30°
2nd warmest
Overnight low
23°
12th coldest
Rainfall
209 mm
23 wet days
Daylight
13 h 18 min
5:26 AM – 6:43 PM
Cloud cover
90%
12th clearest
Wind
5 km/h
9th windiest
Solar energy
4.63 kWh/m²
Travel score
3.2
out of 10

Sơn La is the old provincial capital of Son La province, Vietnam.

Density
328/km²
people per km²

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in June

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 30°C through the month.

A typical June day in Sơn La reaches about 30°C in the afternoon and slips back to 23°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 32°C. Set against its neighbours, June runs on par with May and about 1°C warmer than July.

20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
13023
23023
33023
43023
53023
63023
73023
83023
93023
103023
113023
123023
133023
143023
153023
163023
173023
183023
193023
203023
213023
223023
233023
243023
253023
263023
273023
283023
293023
303023

How June really feels in Sơn La

Once humidity and wind are folded in, June averages 30 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
30
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

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

Sơn La weather by month

How June compares with the rest of the year at a glance. June is the 2nd-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan21° / 12°24410.87.3
Feb23° / 13°193.611.37.9
Mar27° / 16°507.111.87.1
Apr29° / 19°7212.812.55.2
May30° / 22°14719.3133.7
Jun30° / 23°2092313.33.2
Jul29° / 23°28824.513.23.4
Aug29° / 22°28325.312.73.4
Sep29° / 21°15017.512.14.4
Oct27° / 19°498.311.56.6
Nov25° / 16°274.5117.8
Dec22° / 12°233.610.77.6

Cloud cover in June

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 3% of the time in June, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 4% of June, with mostly cloudy or overcast conditions the remaining 92%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
11090
21189
31189
4991
5991
6991
7991
8991
9892
10892
11892
12892
13793
14793
15793
16793
17694
18694
19694
20694
21694
22694
23694
24694
25694
26694
27793
28793
29793
30793

Chance of precipitation in June

Any precipitation

Sơn La gets around 209 mm of rain over 23 wet days in June. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 77% and peaks near 78% on the wettest days.

0%20%40%60%80%151015202530
Rain chance (%)
175
276
376
476
577
677
777
877
977
1077
1177
1277
1377
1477
1577
1677
1777
1877
1977
2077
2177
2277
2377
2477
2577
2677
2777
2878
2978
3078

Humidity in June

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, June lands in the oppressive band about 93% of days. Sticky, muggy-or-worse air turns up on roughly 99% of them.

0%25%50%75%100%151015202530
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1216820
2215830
3214840
4113860
5112870
6111880
7111880
8110890
919900
1018910
1118910
1217920
1317920
1416930
1515940
1615940
1714950
1814950
1913960
2013960
2102980
2202980
2302980
2401990
2501990
2601990
2701990
2801981
2901981
3001981

Wind in June

Winds average 5 km/h in June.

Across June, daily wind ranges from about 4 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
214calm
224calm
234calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm

Sunrise & sunset in June

DaylightNight

Daylight runs from about 13 h 12 min at the start of June to 13 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 6 minutes over June. Sunrise moves from 5:26 AM to 5:29 AM, and sunset from 6:38 PM to 6:46 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.25:266:38
213.25:266:38
313.25:266:39
413.25:266:39
513.25:256:39
613.25:256:40
713.25:256:40
813.35:256:41
913.35:256:41
1013.35:256:41
1113.35:256:42
1213.35:256:42
1313.35:266:42
1413.35:266:43
1513.35:266:43
1613.35:266:43
1713.35:266:44
1813.35:266:44
1913.35:266:44
2013.35:266:44
2113.35:276:45
2213.35:276:45
2313.35:276:45
2413.35:276:45
2513.35:286:45
2613.35:286:46
2713.35:286:46
2813.35:286:46
2913.35:296:46
3013.35:296:46

Solar energy in June

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in June, about 4.63 kWh/m².

For context, solar energy here swings from a low near 3.14 kWh/m² to a high of 5.26 kWh/m² in April across the year — June's 4.63 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.7Bright
44.7Bright
54.7Bright
64.7Bright
74.7Bright
84.7Bright
94.7Bright
104.7Bright
114.7Bright
124.7Bright
134.6Bright
144.6Bright
154.6Bright
164.6Bright
174.6Bright
184.6Bright
194.6Bright
204.6Bright
214.6Bright
224.6Bright
234.6Bright
244.5Bright
254.5Bright
264.5Bright
274.5Bright
284.5Bright
294.5Bright
304.5Bright
Planning a trip in June

Hazard calendar for Sơn La

In seasonPeak

In June, Sơn La sits inside its monsoon season. The full year is below, with each hazard's peak months called out.

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

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

Is June a good time to visit Sơn La?

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

3.2
Sightseeing
12th-best month of the year
4.4
Beach & pool
11th-best month of the year

June is a weaker month for outdoor sightseeing in Sơn La.

What to pack for Sơn La in June

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

In June, Sơn La sees daytime highs around 30°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 23 days see rain.

light clothesrain gearsun protection

UV index in Sơn La in June

LowModerateHighVery highExtreme

Clear-sky midday UV in June peaks around 14 (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 La peaks around June 20 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 18 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 highExtremeVery highHighJun 20UV 13Dec 18UV 6
UV index (midday)Level
Jan7Very high
Feb9Very high
Mar11Extreme
Apr9Very high
May11Extreme
Jun14Extreme
Jul13Extreme
Aug13Extreme
Sep9Very high
Oct9Very high
Nov8Very high
Dec6High

Air quality in Sơn La in June

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Sơn La is worst in April — around 151 µg/m³ PM2.5 (very unhealthy), about 12.9× the cleanest month (August, 12 µg/m³).

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

0306090120150JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorUnhealthyModerateGoodModerateApr 16140 µg/m³Aug 912 µg/m³
PM2.5 (µg/m³)Level
Jan32Moderate
Feb38Poor
Mar67Unhealthy
Apr151Very unhealthy
May58Unhealthy
Jun14Moderate
Jul12Good
Aug12Good
Sep16Moderate
Oct23Moderate
Nov26Moderate
Dec31Moderate
Location & terrain

Where is Sơn La?

Sơn La sits at 21.3°N, 103.9°E, 608 m above sea level, in Vietnam. The nearest listed city is Ít Ong, 24 km away.

Dien Bien PhuXam NuaVieng XaiMường LayYên Bái

Topography around Sơn La

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

Within 3 km, the terrain around Sơn La has significant variations in elevation — a maximum elevation change of 348 m around an average of 674 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,404 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,830 m.

The land around Sơn La is covered by trees (59%) within 3 km, trees (69%) and grassland (21%) within 16 km, and trees (68%) and grassland (27%) within 80 km.

3 km
348 m
16 km
1,404 m
80 km
2,830 m
treesgrasslandcroplandartificial surfacesbare terrainwater
June weather nearby: Ít Ong 24 km · Thị Trấn Thuận Châu 27 km · Nghĩa Lộ 69 km · Dien Bien Phu 93 km · Xam Nua 102 km · Vieng Xai 107 km · Mường Lay 111 km · Yên Bái 112 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 La (21.3256°, 103.9188°, elevation 608 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. 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).