Siu Sai Wan Estate in Spring
In spring (March, April and May), Siu Sai Wan Estate sees average daytime highs around 24°C and overnight lows near 21°C, with 396 mm of rain over about 40 wet days across the season. It is the 3rd-warmest season and the 2nd-wettest season.
Over the season highs climb from about 20°C in early March to 28°C by late May. The sky is clear or mostly clear about 18% of the time across spring, and the air most often feels oppressive.
Spring is Siu Sai Wan Estate's 3rd-best season to visit on our travel score. For the whole year in context, see Siu Sai Wan Estate's year-round climate.
- Avg daytime high
- 24°C
- 3rd-warmest season
- Avg overnight low
- 21°C
- Rainfall
- 396 mm
- 40 wet days
- Avg wind
- 16 km/h
- Travel score
- 5.9
- 3rd-best season
- Months
- Mar · Apr · May
Temperature in Siu Sai Wan Estate in Spring
Over the season highs climb from about 20°C in early March to 28°C by late May.
A typical spring day in Siu Sai Wan Estate reaches about 24°C and drops to 21°C overnight. The warmest of the three months is May, the coolest March.
How spring really feels in Siu Sai Wan Estate
Once humidity and wind are folded in, spring brings about 5 days that feel above 32°C and 0 that feel at or below 0°C.
The story in spring is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Siu Sai Wan Estate weather by month
How the three spring months (March, April and May) 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° / 15° | 29 | 5 | 10.8 | 6.7 |
| Feb | 19° / 16° | 44 | 8.1 | 11.2 | 6.2 |
| Mar | 21° / 18° | 69 | 10.4 | 11.8 | 6.3 |
| Apr | 24° / 22° | 116 | 12.6 | 12.5 | 6.2 |
| May | 27° / 25° | 210 | 17.3 | 13.1 | 5.2 |
| Jun | 29° / 27° | 309 | 21.5 | 13.3 | 3.8 |
| Jul | 30° / 27° | 248 | 20.4 | 13.2 | 3.8 |
| Aug | 30° / 27° | 307 | 21.9 | 12.8 | 3.7 |
| Sep | 29° / 26° | 214 | 16.3 | 12.1 | 4.7 |
| Oct | 27° / 24° | 75 | 6.6 | 11.5 | 7.3 |
| Nov | 24° / 20° | 39 | 5.1 | 10.9 | 7.9 |
| Dec | 20° / 16° | 34 | 4.5 | 10.7 | 7.2 |
Cloud cover in Spring
The sky is clear or mostly clear about 18% of the time across spring.
Chance of precipitation in Spring
Siu Sai Wan Estate gets around 396 mm of rain over 40 wet days across spring. The line is the day-by-day chance of measurable precipitation.
Humidity in Spring
Most of spring feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Spring
Winds average 16 km/h across spring.
Sunrise & sunset in Spring
Daylight runs from about 11 h 30 min in early March to 13 h 18 min by late May. The lit band spans sunrise to sunset each day.
Solar energy in Spring
Average shortwave solar energy reaching the ground each day across spring, about 4.8 kWh/m².
Hazard calendar for Siu Sai Wan Estate
In spring, Siu Sai Wan Estate overlaps its pacific typhoon and monsoon season. The full year is below, with each hazard's peak months called out.
Siu Sai Wan Estate sits in the Pacific typhoon belt; the season peaks July–October.
Siu Sai Wan Estate's monsoon runs May–September, when most of the year's rain falls.
Is spring a good time to visit Siu Sai Wan Estate?
Our two travel scores rate spring for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
spring is a reasonable time to visit Siu Sai Wan Estate for sightseeing.
What to pack for Siu Sai Wan Estate in Spring
From spring's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In spring, Siu Sai Wan Estate sees daytime highs around 24°C and nights near 21°C. Pack light clothes and rain gear. Worth having: sun protection. About 40 days see rain.
Sea temperature near Siu Sai Wan Estate in Spring
The nearest coast averages about 23°C across spring — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 18 km away) is warmest in July at about 29°C and coldest in January near 20°C.
It's comfortable for a long swim from Feb 23 to Jan 5 — about 10.4 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 20 | 20 | 21 | 23 | 26 | 28 | 29 | 29 | 28 | 27 | 24 | 21 |
| Comfort | Cool | Cool | Refreshing | Refreshing | Warm | Warm | Tropical | Tropical | Tropical | Warm | Refreshing | Refreshing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 20 | Cool |
| Feb | 20 | Cool |
| Mar | 21 | Refreshing |
| Apr | 23 | Refreshing |
| May | 26 | Warm |
| Jun | 28 | Warm |
| Jul | 29 | Tropical |
| Aug | 29 | Tropical |
| Sep | 28 | Tropical |
| Oct | 27 | Warm |
| Nov | 24 | Refreshing |
| Dec | 21 | Refreshing |
UV index in Siu Sai Wan Estate in Spring
Clear-sky midday UV across spring averages around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Siu Sai Wan Estate peaks around July 13 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 10 at about 6 (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 | 8 | 9 | 9 | 10 | 12 | 12 | 11 | 10 | 8 | 7 | 6 |
| Level | High | Very high | Very high | Very high | Very high | Extreme | Extreme | Extreme | Very high | Very high | High | High |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 6 | High |
| Feb | 8 | Very high |
| Mar | 9 | Very high |
| Apr | 9 | Very high |
| May | 10 | Very high |
| Jun | 12 | Extreme |
| Jul | 12 | Extreme |
| Aug | 11 | Extreme |
| Sep | 10 | Very high |
| Oct | 8 | Very high |
| Nov | 7 | High |
| Dec | 6 | High |
Air quality in Siu Sai Wan Estate in Spring
Average fine-particle pollution (PM2.5) through the year — so you can see where spring falls, not just the annual average.
Air quality in Siu Sai Wan Estate is worst in January — around 183 µg/m³ PM2.5 (very unhealthy), about 2.5× the cleanest month (July, 73 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 183 | 175 | 165 | 149 | 115 | 83 | 73 | 85 | 119 | 127 | 157 | 156 |
| Level | Very unhealthy | Very unhealthy | Very unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Very unhealthy | Very unhealthy |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 183 | Very unhealthy |
| Feb | 175 | Very unhealthy |
| Mar | 165 | Very unhealthy |
| Apr | 149 | Unhealthy |
| May | 115 | Unhealthy |
| Jun | 83 | Unhealthy |
| Jul | 73 | Unhealthy |
| Aug | 85 | Unhealthy |
| Sep | 119 | Unhealthy |
| Oct | 127 | Unhealthy |
| Nov | 157 | Very unhealthy |
| Dec | 156 | Very unhealthy |
Where is Siu Sai Wan Estate?
Siu Sai Wan Estate sits at 22.3°N, 114.2°E, in Hong Kong. The nearest listed city is Heng Fa Chuen, 2.0 km away.
Topography around Siu Sai Wan Estate
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Siu Sai Wan Estate.
Within 3 km, the terrain around Siu Sai Wan Estate has significant variations in elevation — a maximum elevation change of 520 m around an average of 64 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 598 m; within 80 km, large variations in elevation — a maximum elevation change of 984 m.
The land around Siu Sai Wan Estate is covered by water (47%) and trees (40%) within 3 km, water (64%) and trees (25%) within 16 km, and water (66%) and trees (22%) within 80 km.
Hong Kong travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type D / G / M
- 220 V · 50 Hz
- Prices
- ≈ 71% of US
- price level, 2025
- GDP per capita
- $56,983
- 2025
- Happiness
- 5.6 / 10
- World Happiness, 2025
- Safe drinking water
- 100%
- of population, 2024
- Homicide rate
- 0.4
- per 100k, 2023
- Income group
- High
- World Bank
- English
- Moderate
- EF EPI 538
- 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 Siu Sai Wan Estate (22.2615°, 114.2488°), 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.