Hainan weather in June

In June, Hainan sees average daytime highs of 25°C and overnight lows near 15°C, with 101 mm of rain across 13.3 wet days and about 15.6 hours of daylight. It is the 2nd-warmest and 3rd-wettest month of the year here.

Highs climb over the month, from about 23°C in the first days to 26°C by the end. The sky is clear or mostly clear about 24% of the time in June, and the air most often feels dry.

Daylight stretches from about 15 h 24 min at the start of June to 15 h 42 min by month's end. Set against the rest of the year, June is Hainan's 11th-clearest and 7th-windiest month. For the whole year in context, see Hainan's year-round climate.

Daytime high
25°
2nd warmest
Overnight low
15°
10th coldest
Rainfall
101 mm
13.3 wet days
Daylight
15 h 42 min
3:41 AM – 7:23 PM
Cloud cover
64%
11th clearest
Wind
11 km/h
7th windiest
Solar energy
5.74 kWh/m²
Travel score
6.1
out of 10
Air quality
Elevated
PM2.5 25 µg/m³ · 2018

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

Temperature in June

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 23°C in the first days to 26°C by the end.

A typical June day in Hainan reaches about 25°C in the afternoon and slips back to 15°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 20°C and 30°C. Set against its neighbours, June runs about 5°C warmer than May and about 2°C cooler than July.

10°20°30°151015202530
Avg high (°C)Avg low (°C)
12312
22312
32312
42313
52413
62413
72413
82413
92414
102414
112514
122514
132515
142515
152515
162515
172515
182615
192616
202616
212616
222616
232616
242616
252617
262617
272617
282617
292617
302617

How June really feels in Hainan

Once humidity and wind are folded in, June 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

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

Hainan 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 daysSnow daysDaylight (hours)Travel score
Jan-15° / -26°41.11.68.70.0
Feb-9° / -22°61.61.9100.0
Mar / -11°163.63.311.60.1
Apr12° / 335.61.213.33.2
May20° / 629.90.114.86.2
Jun25° / 15°10113.3015.66.1
Jul27° / 18°16214.7015.35.8
Aug25° / 16°14313.60146.2
Sep20° / 739.1012.46.4
Oct10° / -0°376.90.910.62.7
Nov-3° / -12°143.22.99.10.0
Dec-13° / -23°82.63.48.30.0

Cloud cover in June

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 24% of the time in June.

Beyond those clear spells, partly cloudy skies cover about 17% of June, with mostly cloudy or overcast conditions the remaining 59%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14258
24357
34159
44159
54159
64159
74159
84258
94159
104159
114159
124060
134159
144060
154060
164060
174159
184258
194159
204159
214159
224159
234159
244159
254060
264060
274060
284060
293961
303961

Chance of precipitation in June

Any precipitation

Hainan gets around 101 mm of rain over 13.3 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 44% and peaks near 48% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
138
239
340
440
541
642
742
843
943
1044
1144
1245
1345
1445
1545
1645
1745
1845
1945
2045
2145
2246
2346
2447
2547
2647
2748
2848
2948
3048

Humidity in June

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, June lands in the dry band about 45% of days. Sticky, muggy-or-worse air turns up on roughly 5% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
18513200
28215300
38017300
47819300
57422400
67124500
76826600
86528700
96230800
1059311000
1157321100
1252341310
1350341510
1447351710
1544361920
1641362120
1739362230
1836362430
1934362640
2032352850
2130343060
2227333180
2325333390
24233234110
25213135121
26203036141
27182937161
28162837181
29142738201
30122639221

Wind in June

Winds average 11 km/h in June.

Across June, daily wind ranges from about 10 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
112light breeze
212light breeze
312calm
412calm
512calm
612calm
712calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm

Sunrise & sunset in June

DaylightNight

Daylight runs from about 15 h 24 min at the start of June to 15 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 18 minutes over June. Sunrise moves from 3:47 AM to 3:45 AM, and sunset from 7:12 PM to 7:26 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
115.43:477:12
215.53:467:13
315.53:467:14
415.53:457:15
515.53:447:16
615.53:447:17
715.63:447:18
815.63:437:18
915.63:437:19
1015.63:427:20
1115.63:427:20
1215.73:427:21
1315.73:427:22
1415.73:427:22
1515.73:417:23
1615.73:417:23
1715.73:417:24
1815.73:417:24
1915.73:417:25
2015.73:417:25
2115.73:427:25
2215.73:427:25
2315.73:427:26
2415.73:427:26
2515.73:437:26
2615.73:437:26
2715.73:437:26
2815.73:447:26
2915.73:447:26
3015.73:457:26

Solar energy in June

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in June, about 5.74 kWh/m².

For context, solar energy here swings from a low near 1.53 kWh/m² to a high of 5.78 kWh/m² in May across the year — June's 5.74 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.9Bright
25.9Bright
35.9Bright
45.9Bright
55.8Bright
65.8Bright
75.8Bright
85.8Bright
95.8Bright
105.8Bright
115.8Bright
125.8Bright
135.8Bright
145.8Bright
155.7Bright
165.7Bright
175.7Bright
185.7Bright
195.7Bright
205.7Bright
215.7Bright
225.7Bright
235.7Bright
245.6Bright
255.6Bright
265.6Bright
275.6Bright
285.5Bright
295.5Bright
305.5Bright
Planning a trip in June

Hazard calendar for Hainan

In seasonPeak

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

Hainan's rainy season runs June–September, when most of the year's rain falls.

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

Is June a good time to visit Hainan?

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

6.1
Sightseeing
4th-best month of the year
5.5
Beach & pool
3rd-best month of the year

June is a reasonable time to visit Hainan for sightseeing.

What to pack for Hainan in June

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

In June, Hainan sees daytime highs around 25°C and nights near 15°C. Worth packing: light clothes, rain gear and sun protection. About 13 days see rain.

light clothesrain gearsun protection

UV index in Hainan in June

LowModerateHighVery highExtreme

Clear-sky midday UV in June 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 Hainan peaks around August 17 at about 7 (high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 19 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 6 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighHighModerateLowAug 17UV 7Dec 19UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar3Moderate
Apr4Moderate
May5High
Jun6High
Jul5Moderate
Aug7Very high
Sep5Moderate
Oct2Moderate
Nov1Low
Dec1Low

Air quality in Hainan 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 Hainan is worst in March — around 37 µg/m³ PM2.5 (poor), about 2.3× the cleanest month (August, 16 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Hainan's WHO annual average of 25 µg/m³.

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateModerateMar 1636 µg/m³Aug 2016 µg/m³
PM2.5 (µg/m³)Level
Jan31Moderate
Feb31Moderate
Mar37Poor
Apr30Moderate
May21Moderate
Jun19Moderate
Jul20Moderate
Aug16Moderate
Sep17Moderate
Oct22Moderate
Nov28Moderate
Dec27Moderate
Location & terrain

Where is Hainan?

Hainan sits at 47.2°N, 127.0°E, 0 m above sea level, in China. The nearest listed city is Harbin, 167 km away.

RaychikhinskBlagoveshchenskChigiriBelogorskSvobodnyyBirobidzhanNamyang-nodongjagu

Topography around Hainan

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

Within 3 km, the terrain around Hainan has only modest variations in elevation — a maximum elevation change of 73 m around an average of 214 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 91 m; within 80 km, significant variations in elevation — a maximum elevation change of 538 m.

The land around Hainan is covered by cropland (87%) within 3 km, cropland (89%) within 16 km, and cropland (82%) within 80 km.

3 km
73 m
16 km
91 m
80 km
538 m
treesgrasslandcroplandartificial surfaceswater
June weather nearby: Harbin 167 km · Raychikhinsk 336 km · Blagoveshchensk 341 km · Chigiri 347 km · Belogorsk 424 km · Svobodnyy 468 km · Birobidzhan 475 km · Namyang-nodongjagu 526 km

China travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type A / I
220 V · 50 Hz
Prices
≈ 47% of US
price level, 2025
GDP per capita
$13,862
2025
Happiness
6.1 / 10
World Happiness, 2025
Homicide rate
0.5
per 100k, 2020
Road deaths
17.4
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Low
EF EPI 464
Religion
unaffiliated 52%folk religion 22%Buddhist 18%Christian 5%

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 Hainan (47.2322°, 126.9809°, elevation 0 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).