China · 1991–2020

Best time to visit
Yunlong

For Yunlong, February has the most comfortable weather in our climate comparison. Typical daytime highs are 23.1°C, nights average 17.1°C, and rainfall totals about 35 mm. Figures use measured 1991–2020 normals from the nearest eligible NOAA station.

Best all-round monthFebruary

Typical daytime high23.1°C

Typical night-time low17.1°C

February rainfall35 mm

Overall comfort

February

Other strong months: January and December

90/100 weather score

Beach weather

March

Other strong months: November and April

83/100 weather score

Outdoor sightseeing

January

Other strong months: February and December

84/100 weather score

Make the answer personal

Choose the weather
that suits you.

Set the daytime temperature and rainfall you are comfortable with. We will show only the months that meet every choice, using the measured 1991–2020 averages below.

Daytime high: at least 18°CDaytime high: at most 28°CMonthly rain: no more than 100 mmWet days: no more than 10

5 months fit your choices for Yunlong

January21.3°C day · 26 mm rain · 4.4 wet days

February23.1°C day · 35 mm rain · 6.1 wet days

March26.5°C day · 49 mm rain · 6.2 wet days

November26°C day · 63 mm rain · 6.2 wet days

December22.4°C day · 43 mm rain · 5.7 wet days

July has the lowest comfort score at 5 out of 100, compared with February at 90. The main reason is that 294 mm of rain falls, and days average 33.4°C, 9° above the 24°C the score treats as ideal.

Quick answers

Planning a trip to Yunlong?

These answers come from the same measured monthly climate record shown on this page.

When is the best time to visit Yunlong?

February is the strongest all-round choice in our temperature-and-rainfall comparison, with a typical daytime high of 23.1°C and 35 mm of rain.

What is the hottest month in Yunlong?

June is hottest in this record, with a typical daytime high of 33.5°C and a night-time low of 25.8°C.

Which month has the least rain?

January has the lowest monthly rainfall total at 26 mm.

Is this a weather forecast?

No. These are long-term measured averages from 1991–2020. Check a current forecast before you travel.

Month by month

See how the weather
changes through the year.

The bars combine daytime temperature, night-time temperature and rainfall. The figures are measured historical averages, not a forecast for a particular trip.

8821.3° / 15.8°

9023.1° / 17.1°

7826.5° / 19.7°

5530.1° / 22.9°

2132.3° / 24.9°

1033.5° / 25.8°

533.4° / 25.8°

832.4° / 25.6°

1531° / 24.9°

2528.9° / 23.5°

7626° / 20.8°

8722.4° / 17.6°

Monthly climate evidence for Yunlong — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 29 km away
Month	Day	Night	Rain	Wet days	Sea	Daylight	Comfort	Coverage
January	21.3°C	15.8°C	26 mm	4.4	19.8°C	11 h 03	88	Good coverage
February	23.1°C	17.1°C	35 mm	6.1	19.3°C	11 h 28	90	Strong coverage
March	26.5°C	19.7°C	49 mm	6.2	20.5°C	11 h 59	78	Good coverage
April	30.1°C	22.9°C	83 mm	7.1	22.9°C	12 h 34	55	Good coverage
May	32.3°C	24.9°C	214 mm	13.1	26.2°C	13 h 04	21	Good coverage
June	33.5°C	25.8°C	243 mm	14	27.9°C	13 h 19	10	Good coverage
July	33.4°C	25.8°C	294 mm	14	28.5°C	13 h 13	5	Good coverage
August	32.4°C	25.6°C	293 mm	12.9	28.4°C	12 h 48	8	Good coverage
September	31°C	24.9°C	291 mm	12.2	28.1°C	12 h 14	15	Good coverage
October	28.9°C	23.5°C	308 mm	8.6	27.2°C	11 h 39	25	Good coverage
November	26°C	20.8°C	63 mm	6.2	25.0°C	11 h 10	76	Good coverage
December	22.4°C	17.6°C	43 mm	5.7	22.1°C	10 h 56	87	Strong coverage

Records at HAIKOU, 1951–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	33.5°C28 Jan 1969	2.8°C12 Jan 1955	36 mm31 Jan 1969	88 mm1989 · driest 0 mm in 2014	71
February	37.2°C21 Feb 1979	6.5°C4 Feb 1969	61 mm17 Feb 2022	143 mm2022 · driest 0 mm in 2002	73
March	38.1°C20 Mar 1962	6.4°C2 Mar 1986	92 mm25 Mar 2009	215 mm2009 · driest 5 mm in 1980	70
April	41.3°C30 Apr 2024	9.8°C5 Apr 1969	130 mm16 Apr 1986	272 mm1967 · driest 3 mm in 2002	69
May	39.2°C7 May 2023	16.3°C7 May 1984	129 mm1 May 1964	373 mm2024 · driest 78 mm in 1996	71
June	38.4°C8 Jun 1977	21.2°C5 Jun 1964	210 mm13 Jun 1952	587 mm1958 · driest 41 mm in 1996	71
July	38.4°C13 Jul 1961	21.0°C6 Jul 1952	391 mm18 Jul 2014	601 mm2014 · driest 30 mm in 1967	70
August	37.0°C15 Aug 1977	21.7°C21 Aug 1972	327 mm22 Aug 1998	607 mm2016 · driest 61 mm in 1987	70
September	36.0°C3 Sep 1988	17.5°C26 Sep 1966	328 mm20 Sep 1996	782 mm1996 · driest 46 mm in 1999	71
October	34.5°C12 Oct 2003	14.1°C31 Oct 1958	331 mm5 Oct 2011	1213 mm2010 · driest 0 mm in 1979	70
November	34.7°C25 Nov 1997	10.0°C30 Nov 1987	253 mm8 Nov 1972	543 mm1972 · driest 0 mm in 1997	70
December	31.5°C17 Dec 1966	5.3°C30 Dec 1975	92 mm9 Dec 1963	166 mm1963 · driest 0 mm in 1973	72

Typical days per month at HAIKOU, 1991–2020
Month	Days 25°C+	Days 30°C+	Heavy rain (10 mm+)
January	7	<1	<1
February	11	2	<1
March	20	8	1
April	26	17	3
May	31	24	5
June	30	28	7
July	31	29	6
August	31	28	5
September	30	22	6
October	30	10	5
November	19	2	1
December	7	<1	1

How often different weather occurs at HAIKOU, based on its daily record
Month	Dry days reaching 20°C	Wet days	Days with heavy rain	Weeks with 3+ wet days	Typical high by year
January	55%	15%	2%	18%	18.8–23.4°C
February	60%	23%	3%	26%	19.7–25.4°C
March	74%	20%	5%	20%	23.7–29.0°C
April	75%	25%	9%	30%	27.6–32.1°C
May	60%	41%	18%	56%	30.7–34.0°C
June	58%	43%	21%	59%	31.8–34.4°C
July	63%	38%	19%	49%	32.1–34.5°C
August	61%	40%	20%	52%	31.3–33.2°C
September	60%	40%	22%	52%	29.8–31.8°C
October	71%	30%	16%	34%	27.2–29.7°C
November	78%	21%	7%	21%	23.8–27.2°C
December	68%	15%	4%	15%	20.1–24.0°C

A dry day reaching 20°C records under 1 mm of rain. A wet day records at least 1 mm, while a heavy-rain day records at least 10 mm. The weekly figure is the share of seven-day periods containing three or more wet days. The final column shows the middle 80% of average daytime highs recorded for that month in individual years; a wider range means conditions have varied more from one year to another.

1951Each stripe is one year’s mean temperature against the 67-year average. Warmest: 2024. Coolest: 1971.2025

The evidence behind this page

Where these figures
come from.

Place identity: GeoNames 1785705
NOAA station: CHM00059758 · HAIKOU
Station distance: 26.5 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 23 usable years
Daylight: Calculated from latitude 19.88°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature: NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 29 km from the place centre. A sheltered bay can run warmer than the open sea it is measured from.
Important limit: Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.

Next step

Choose your month.
Then plan the details.

The weather comparison for Yunlong is based on climate evidence, not payments from travel companies. Flight, accommodation and activity links will be clearly labelled when they are added; there are no booking offers on this page today.

How travel partnerships will work

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