Hong Kong weather in October - temperature, rain and is it a good time to visit?

October is one of the best months for a holiday in Hong Kong.

Weather in October at a glance

Daytime temperature: 30°C
Night-time temperature: 24°C
Sea temperature: 28°C
Daylight hours: 11h39min
Chance of rain: 24%
Days with thunderstorms: 3%
Muggy days: 97%

An overview for the country. Conditions can vary between cities and regions.

Plan your trip · October

Hong Kong in October: weather for a week away

Compare destinations and see how many days of a typical trip met your preferred temperature range, with less than 1 mm of daily precipitation.

Historical dataNASA POWER1981-2025

City or region

Compare with history

What weather do you prefer?

Kowloon in October: Sightseeing

1981-2025

Daytime temperature 18-28°CDaily precipitation Less than 1 mm

Days matching your plans

2.7 / 7

Weekly average; typical number of days: 0-5

At least 5 matching days

25%

of historical weeks

All 7 days match

of historical weeks

How many matching days were there in a week?

Each bar shows the share of historical weeks.

23%

0days

14%

1day

16%

2days

11%

3days

11%

4days

5days

10%

6days

7days

5-7 days matching your preferences

When to go? Compare the months

Average matching days per week

4.7Jan 4.4Feb 4.5Mar 2.7Apr 1May 0.1Jun 0Jul 0Aug 0.2Sept 2.7Oct 5.3Nov 5.3Dec

The highest average was in November: 5.3 matching days per week.

Hong Kong in October: which destinations match most often?

Comparison of 2 cities and regions using your selected conditions.

Kowloon · 1981-2025

Hot days and warm nights in October

Does the temperature drop below 20°C during hot weather?

100%of hot days with a minimum ≥20°C

95%of weeks with at least 3 warm nights*

On 100% of hot days, the temperature stayed at or above 20°C even at its coolest. This covers 120 days with a maximum of at least 30°C.

Lowest temperature on hot days

Below 18°C0%

18°C to below 20°C0%

At least 20°C100%

* A warm night is represented by the daily minimum ≥20°C. Maximum and minimum refer to the same day; this does not isolate the night following a particular hot day.

Kowloon · Your holiday week

How much can temperatures change during a week?

Check cooler hours as well as afternoon temperatures.

Coolest time of day18.7-22.3°CWeekly minimum: typical range

Warmest day28.2-30.1°CWeekly maximum: typical range

2.5°CTypical difference between the highest and lowest daytime maxima in a week

How often does it get cooler from one day to the next?

2%of weeks with a day-to-day drop in maximum temperature of at least 5°C

Daytime temperatures usually changed gradually, but allow for cooler hours when packing.

Ranges are the 20th-80th percentiles of whole-week minima and maxima, not forecast limits. Cooling compares consecutive daily maxima, not day and night temperatures.

Compare all destinations

18-28°C · Less than 1 mm · 1981-2025
City or region	Days matching your plans	At least 5 matching days	All 7 days match
Kowloon	2.7 / 7	25%	6%
Sha Tin	2.7 / 7	25%	6%

Where do the figures come from?

The analysis includes 1,125 complete 7-day periods out of 1,125 possible periods in 45 years (1981-2025), for Kowloon. Every week lies entirely within the selected month. Overlapping weeks are not independent samples. Incomplete weeks are excluded.

A matching day has a daily maximum within the selected temperature range, inclusive, and precipitation below 1 mm. Trace precipitation is possible. The typical range is the 20th-80th percentile of matching days per week. Daily percentages count each calendar day once; categories can overlap.

NASA POWER provides daily MERRA-2 grid data for each location, not city weather-station measurements or an area-wide country average. These are historical frequencies, not a forecast or a measure of forecast accuracy. This comparison does not include cloud, wind, humidity, sea temperature or changes within the day, and does not assess outdoor safety. Check the current forecast before travelling. NASA POWER Daily API.

Historical frequency, not a forecast for your travel dates.

Hong Kong - October vs the year - annual climate

In October, Hong Kong averages about 30° during the day and 24° at night. It's usually fairly dry, with only about a 24% chance of rain. The sea is around 28°C - very warm for swimming.

Historical weather 1981-2025

Weather in Hong Kong in October: trends from 1981 to 2025

NASA POWER

From 2016 to 2025, the average daytime high was 28.3°C, 0.7°C warmer than in 1981-1990. 2009 was the warmest (29.7°C), while 1981 was the coolest (26.2°C).

Differences between years

How similar is the weather in October from year to year?

In 63% of the years compared, temperature and the number of wet days were close to typical for this month.

Similar means an average daily maximum within 2°C and a wet-day count within 3 days of the 1991-2020 medians. This is historical similarity, not forecast accuracy.

63%of years with similar conditions

Typical average daytime high27.2°C–28.6°C

Typical number of wet days3–10 days

Daytime temperatures in October: year by year

Monthly average daily maximum temperature: compare individual years and the longer-term trend.

45 years of data

Coolest month26.2°C 1981

Warmest month29.7°C 2009

Latest year in the data28.4°C 2025

Average for each year5-year average1991-2020 reference: 27.9°C

Blue band: the 20th-80th percentile of monthly averages in 1991-2020. The thicker line is the average of five consecutive years. Highlights describe whole months, not single-day records.

View temperatures for every year

Year	Average daytime maximum	5-year average
1981	26.2°C	-
1982	27.4°C	-
1983	27.6°C	-
1984	28.2°C	-
1985	27.8°C	27.4°C
1986	27.7°C	27.7°C
1987	28°C	27.9°C
1988	27.2°C	27.8°C
1989	27.7°C	27.7°C
1990	27.5°C	27.6°C
1991	27.8°C	27.6°C
1992	28.1°C	27.7°C
1993	26.2°C	27.5°C
1994	26.9°C	27.3°C
1995	27.2°C	27.2°C
1996	27.8°C	27.2°C
1997	27.1°C	27°C
1998	28.1°C	27.4°C
1999	27.4°C	27.5°C
2000	27.6°C	27.6°C
2001	27.5°C	27.5°C
2002	26.6°C	27.4°C
2003	28°C	27.4°C
2004	27.7°C	27.5°C
2005	28.6°C	27.7°C
2006	28.6°C	27.9°C
2007	28.3°C	28.2°C
2008	28.5°C	28.3°C
2009	29.7°C	28.7°C
2010	26.9°C	28.4°C
2011	27.8°C	28.2°C
2012	28.9°C	28.4°C
2013	28.1°C	28.3°C
2014	29.4°C	28.2°C
2015	28.2°C	28.5°C
2016	28.6°C	28.6°C
2017	28.7°C	28.6°C
2018	27.1°C	28.4°C
2019	28.8°C	28.3°C
2020	27.2°C	28.1°C
2021	28°C	28°C
2022	29.2°C	28.1°C
2023	27.9°C	28.2°C
2024	28.8°C	28.2°C
2025	28.4°C	28.5°C

How has October changed since the 1980s?

A comparison of 1981-1990 with 2016-2025 shows how temperatures, rainfall and the frequency of longer hot spells have changed.

In the latest decade, the average daytime high was 0.7°C warmer than in 1981-1990.

Daytime high

1981-199027.5°C2016-202528.3°C

change: +0.7°C

Hot days

1981-19900.2 days2016-20256.9 days

change: +6.7 days

Warm nights

1981-199025.8 days2016-202527 days

change: +1.2 days

Wet days

1981-19907.8 days2016-20259.7 days

change: +1.9 days

Years with a heatwave

1981-19900%2016-202570%

change: +70 pp

How often does October bring heat, frost and rain?

Typical number of days and monthly precipitation based on the 1991-2020 climate normal.

Warm days30 dayshigh of at least 25°C

Hot days1 dayhigh of at least 30°C

Frost nights0 dayslow below 0°C

Warm nights27 dayslow of at least 20°C

Wet days5 daysat least 1 mm

Monthly rainfall37 mmtypical total

How often does it rain in Hong Kong in October?

The chances use every consecutive 3-, 5- and 7-day period from 1981 to 2025. A wet day has at least 1 mm of precipitation.

A full seven days without rain occurred in 41% of historical periods. At least one wet day occurred in 59% of weeks.

3 rain-free days62%historical chance

5 rain-free days50%historical chance

7 rain-free days41%historical chance

Longest dry spell13 daystypical in the month

Longest wet spell3 daystypical in the month

Heatwaves, warm nights and cool spells in October

The percentages show years with at least one run of three consecutive days or nights meeting the stated threshold.

Heatwave24%3 days with highs of at least 30°C11 of 45 years · most often: Days 1-10

Run of warm nights100%3 nights with lows of at least 20°C45 of 45 years · most often: Days 1-10

Run of frosty nights0%3 nights with lows below 0°C0 of 45 years

Marked cool spell60%3 days with highs no greater than 26.7°C27 of 45 years · most often: Day 21 to month end

Highest and lowest values since 1981

Highest temperature32.2°C4 October 2009

Coolest night12.8°C23 October 1981

Wettest day93.7 mm13 October 1983

Start, middle or end of the month - when is the weather most stable?

We compare temperatures, dry days, heavy rain and wind. The highlighted period usually has the lowest combined risk of rain and stronger winds.

Days 1-10

28.7°CDaytime high23.4°CNight

Dry days: 7 days
Heavy-rain risk: 5%
Hot days: 18%
Stronger wind: 3%

Days 11-20

27.9°CDaytime high22.4°CNight

Dry days: 8 days
Heavy-rain risk: 7%
Hot days: 4%
Stronger wind: 4%

Day 21 to month endmost stable

27.2°CDaytime high20.7°CNight

Dry days: 11 days
Heavy-rain risk: 2%
Hot days: 2%
Stronger wind: 3%

The most stable conditions for rain and wind usually occur during: Day 21 to month end.

Country values are the median of data for 2 cities covered by the site. Source: NASA POWER daily gridded data (MERRA-2), 1981-2025; 1991-2020 climate normal. These are area-based model data and can differ from official weather-station records.

Hong Kong weather all year - average temperatures and rain

Month	Day	Night	Chance of rain
January ★	19℃	13℃	29%
February ★	20℃	14℃	36%
March ★	23℃	17℃	40%
April ★	27℃	21℃	51%
May	30℃	24℃	69%
June	32℃	27℃	62%
July	32℃	27℃	59%
August	32℃	26℃	58%
September	32℃	26℃	46%
October ★	30℃	24℃	24%
November ★	26℃	19℃	30%
December ★	20℃	14℃	32%

★ - months most often recommended for travel

Where is it warmest in Hong Kong in October? Weather by city

For each city, we show the average daytime temperature and the warmest and coolest year. The comparison uses the average daily high across the whole of October, not a single extreme day.

Place	Day	Night	October 1981-2025	Sea	Chance of rain
Kowloon	30℃	24℃	Average27.9°C Warmest year2009 · 29.7°C Coolest year1981 · 26.2°C Warmest day32.2°C · 4 Oct 2009 Coolest day16°C · 23 Oct 1981	28℃	24%
Sha Tin	30℃	24℃	Average27.9°C Warmest year2009 · 29.7°C Coolest year1981 · 26.2°C Warmest day32.2°C · 4 Oct 2009 Coolest day16°C · 23 Oct 1981	28℃	24%

Temperature records in Hong Kong: October compared with the whole year

The comparison uses daily high temperatures from 1981-2025 for the 2 cities shown in the table.

Warmest day in October32.2°C Kowloon · 4 October 2009

Warmest day of the year35.6°C Kowloon · 1 July 2004

Coolest day in October16°C Kowloon · 23 October 1981

Coolest day of the year6.9°C Kowloon · 28 December 1991

These are records in NASA POWER gridded data for the analysed cities, not official national weather-station records.

Travelling soon? Check the live 14-day weather forecast for Hong Kong.

Hong Kong weather - other months

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