Xiamen in Summer
In summer (June, July and August), Xiamen sees average daytime highs around 31°C and overnight lows near 25°C, with 684 mm of rain over about 57 wet days across the season. It is the warmest season of the year and the wettest season of the year.
Over the season highs climb from about 29°C in early June to 31°C by late August. The sky is clear or mostly clear about 20% of the time across summer, and the air most often feels miserable.
Summer is Xiamen's weakest season of the year to visit on our travel score. For the whole year in context, see Xiamen's year-round climate.
- Avg daytime high
- 31°C
- warmest season of the year
- Avg overnight low
- 25°C
- Rainfall
- 684 mm
- 57 wet days
- Avg wind
- 9 km/h
- Travel score
- 3.5
- weakest season of the year
- Months
- Jun · Jul · Aug
Temperature in Xiamen in Summer
Over the season highs climb from about 29°C in early June to 31°C by late August.
A typical summer day in Xiamen reaches about 31°C and drops to 25°C overnight. The warmest of the three months is July, the coolest June.
How summer really feels in Xiamen
Once humidity and wind are folded in, summer brings about 91 days that feel above 32°C and 0 that feel at or below 0°C.
The story in summer is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Xiamen weather by month
How the three summer months (June, July and August) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 18° / 10° | 40 | 5.6 | 10.7 | 6.4 |
| Feb | 18° / 11° | 60 | 8.7 | 11.1 | 6.0 |
| Mar | 20° / 14° | 89 | 11.7 | 11.8 | 6.0 |
| Apr | 24° / 18° | 108 | 12.8 | 12.6 | 6.1 |
| May | 28° / 22° | 184 | 16.1 | 13.2 | 5.3 |
| Jun | 30° / 25° | 245 | 19.7 | 13.5 | 3.7 |
| Jul | 31° / 26° | 188 | 17.1 | 13.4 | 3.5 |
| Aug | 31° / 26° | 251 | 19.7 | 12.9 | 3.4 |
| Sep | 30° / 24° | 131 | 12.3 | 12.2 | 4.7 |
| Oct | 28° / 21° | 44 | 3.8 | 11.4 | 7.3 |
| Nov | 24° / 17° | 49 | 4.7 | 10.8 | 7.9 |
| Dec | 20° / 12° | 42 | 5 | 10.5 | 7.2 |
Cloud cover in Summer
The sky is clear or mostly clear about 20% of the time across summer.
Chance of precipitation in Summer
Xiamen gets around 684 mm of rain over 57 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels miserable — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 9 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 13 h 24 min in early June to 12 h 30 min by late August. The lit band spans sunrise to sunset each day.
Solar energy in Summer
Average shortwave solar energy reaching the ground each day across summer, about 5.1 kWh/m².
Hazard calendar for Xiamen
In summer, Xiamen overlaps its pacific typhoon and monsoon season. The full year is below, with each hazard's peak months called out.
Xiamen sits in the Pacific typhoon belt; the season peaks July–October.
Xiamen's monsoon runs May–September, when most of the year's rain falls.
Is summer a good time to visit Xiamen?
Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
summer is a weaker month for outdoor sightseeing in Xiamen.
What to pack for Xiamen in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Xiamen sees daytime highs around 31°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 57 days see rain.
Sea temperature near Xiamen in Summer
The nearest coast averages about 27°C across summer — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea offshore is warmest in August at about 28°C and coldest in February near 15°C.
It's comfortable for a long swim from Apr 20 to Nov 29 — about 7.4 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 16 | 15 | 17 | 20 | 23 | 26 | 27 | 28 | 27 | 25 | 22 | 18 |
| Comfort | Cool | Cool | Cool | Cool | Refreshing | Warm | Warm | Warm | Warm | Warm | Refreshing | Cool |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 16 | Cool |
| Feb | 15 | Cool |
| Mar | 17 | Cool |
| Apr | 20 | Cool |
| May | 23 | Refreshing |
| Jun | 26 | Warm |
| Jul | 27 | Warm |
| Aug | 28 | Warm |
| Sep | 27 | Warm |
| Oct | 25 | Warm |
| Nov | 22 | Refreshing |
| Dec | 18 | Cool |
UV index in Xiamen in Summer
Clear-sky midday UV across summer averages around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Xiamen peaks around June 18 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 5 (high).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 6 | 7 | 9 | 8 | 10 | 12 | 11 | 10 | 10 | 8 | 6 | 5 |
| Level | High | High | Very high | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | High | High |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 6 | High |
| Feb | 7 | High |
| Mar | 9 | Very high |
| Apr | 8 | Very high |
| May | 10 | Extreme |
| Jun | 12 | Extreme |
| Jul | 11 | Extreme |
| Aug | 10 | Extreme |
| Sep | 10 | Extreme |
| Oct | 8 | Very high |
| Nov | 6 | High |
| Dec | 5 | High |
Air quality in Xiamen in Summer
Average fine-particle pollution (PM2.5) through the year — so you can see where summer falls, not just the annual average.
Air quality in Xiamen is worst in January — around 33 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (July, 16 µg/m³).
Seasonal pattern from CAMS reanalysis, scaled to Xiamen's WHO annual average of 25.2 µg/m³.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 33 | 32 | 33 | 29 | 24 | 18 | 16 | 19 | 22 | 21 | 27 | 28 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 33 | Moderate |
| Feb | 32 | Moderate |
| Mar | 33 | Moderate |
| Apr | 29 | Moderate |
| May | 24 | Moderate |
| Jun | 18 | Moderate |
| Jul | 16 | Moderate |
| Aug | 19 | Moderate |
| Sep | 22 | Moderate |
| Oct | 21 | Moderate |
| Nov | 27 | Moderate |
| Dec | 28 | Moderate |
Where is Xiamen?
Xiamen sits at 24.5°N, 118.1°E, 12 m above sea level, in China. The nearest listed city is Jincheng, 24 km away.
Topography around Xiamen
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Xiamen.
Within 3 km, the terrain around Xiamen has only modest variations in elevation — a maximum elevation change of 213 m around an average of 19 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 460 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,439 m.
The land around Xiamen is covered by artificial surfaces (46%), water (31%) and trees (21%) within 3 km, water (46%) and artificial surfaces (26%) within 16 km, and trees (48%) and water (33%) within 80 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
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 Xiamen (24.4798°, 118.0819°, elevation 12 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.