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Beihai weather & best time to visit

City break

Beihai at a glance

Best time
Nov – Mar
Warmest month
Jul · 32°
Warmest sea
Jul · 29.8°
Sunshine a year
1,850 h
Rain a year
1,689 mm
Climate
Subtropical
Time zone
UTC+8
Elevation
0 m

Climate in Beihai

Beihai has a subtropical climate with warm summers and mild winters. July is the warmest month with average highs of 32 °C, while January is the coolest at 19 °C. With around 1,850 hours of sunshine a year, Beihai is moderately sunny; July is the sunniest month with 6.7 hours a day.

Holiday weather through the year

Best time to visit

Best time to visit Beihai

The best time to visit Beihai is from November to March. For a beach holiday – sea from 21 °C, warm and mostly dry – go in April and from October to November. For sightseeing, day trips and hiking, conditions are most comfortable from November to April. Rain is frequent from May to September; the wettest month is August with 331 mm.

Beihai through the seasons

How the weather changes over the seasons, with averages for each.

Beihai in spring

Mar – May

60

Good

  • 23–31 °C by day
  • Sea 24 °C
  • 4.3 h of sun a day
  • 34 rainy days in all

Beihai in summer

Jun – Aug

29

Poor

  • 32 °C by day
  • Sea 30 °C
  • 6.4 h of sun a day
  • 71 rainy days in all

Beihai in autumn

Sep – Nov

61

Good

  • 26–32 °C by day
  • Sea 27 °C
  • 6.2 h of sun a day
  • 34 rainy days in all

Beihai in winter

Dec – Feb

79

Good

  • 19–21 °C by day
  • Sea 20 °C
  • 3.3 h of sun a day
  • 15 rainy days in all

Which month for what?

Beach & swimming

Apr, Oct – Nov

Sea from 21 °C, warm and mostly dry

Sightseeing & hiking

Nov – Apr

15–28 °C and not too much rain

Rainy months

May – Sep

Rainy season or more than 12 rainy days

Find your perfect month

Tell us what you like and we rate every month in Beihai for you.

Swimming in the sea
Sunshine
Little rain

Your best months: February – March, December

Based on the climate averages; tap a month to see its details.

Your holiday weather, at a glance

Weather in October

Weather in October

65

Holiday weather in October

Good

Best time to visit: November – March

October is the peak of the typhoon season Hurricane season

Good forBeach & swimming

Keep in mindStorm season

A typical day in October

  1. Morning, 08:00: about 24°
  2. Midday, 13:00: about 29°
  3. Afternoon, 16:00: about 29°
  4. Evening, 20:00: about 26°
  5. Night, 23:00: about 24°

06:3918:20

Warm enough for a T-shirt in the evening.

Estimated from the average high and low: coolest around sunrise, warmest in mid-afternoon.

Light for photos in October

Golden hour
Morning 06:25–07:08 · evening 17:50–18:33
Blue hour
Morning 06:16–06:25 · evening 18:33–18:42

Golden hour: the sun between 4° below and 6° above the horizon; blue hour: 6° to 4° below it. Times for the 15th of the month; mountains and clouds shift the light.

October in Beihai compared with home

Home:

Loading the climate at home …

Early or late October?

In October, daytime highs fall from about 31° at the start of the month to 28° at the end. The sea cools from 28° to 26°. The days get 0.6 h shorter.

Early or late October?
October1 Oct31 Oct
Daytime high31°28°
Night-time low24°20°
Sea28°26°
Daylight12.0 h11.4 h

What is the weather like in Beihai in October?

In October, Beihai is hot: daytime highs average 30 °C, and even at night it stays warm at around 22 °C. The sea averages 27.5 °C – lovely and warm for swimming. The sun shines for around 6.6 hours a day. Rain falls on about 9 days, adding up to 89 mm. On about 15 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, October is a good month for a holiday in Beihai.

More details for October

Daylight
11 h 41 min06:39 – 18:20
UV index
9 · very highclear sky, noon (estimate)All months
Muggy days
25 daysdew point 18 °C or moreAll months
Wind
19 km/haverage daily peakAll months
Cloud cover
45 %on averageAll months
Hot days
15 days30 °C or moreAll months
Time zone
UTC+8offset from UTC

How the score comes together

  • Temperatureweight 50 %67 %
  • Sunshineweight 20 %60 %
  • Few rainy daysweight 30 %66 %

Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.

What to pack in October

  • Swimwear
  • Sunscreen
  • Sunglasses & sun hat
  • Light, breathable clothes
  • Water bottle – drink plenty
  • Insect repellent
  • Rain jacket or umbrella

Compare two months in Beihai

Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.

vs

November has the better holiday weather in Beihai: score 85 against 65. In November, days are 4 °C cooler than in October. The sea is 3 °C cooler in November. November has 3 fewer rainy days. The sun shines an hour less a day in November.

October vs November, Beihai
MonthOctoberNovember
Holiday weather score6585better
Daytime high30°26°
Night-time low22°18°
Sea27.5°24.6°
Sunshine6.6 hbetter5.5 h
Rainy days96better
Rainfall89 mm44 mmbetter
Muggy days2513better

Based on the climate averages 1996–2025.

Beihai month by month

The typical weather for every month at a glance.

76January19° · Sea 19° · 3.0 h

In January, Beihai is mild: daytime highs average 19 °C, and nights cool down to about 12 °C. The sea averages 18.8 °C – bracing, so a wetsuit helps for longer swims. The sun is scarce, with only about 3.0 hours a day. Rain falls on about 6 days, adding up to 31 mm. All in all, January is a good month for a holiday in Beihai.

Beihai in January
77February21° · Sea 19° · 2.8 h

In February, Beihai is mild: daytime highs average 21 °C, and nights cool down to about 14 °C. The sea averages 18.9 °C – bracing, so a wetsuit helps for longer swims. The sun is scarce, with only about 2.8 hours a day. Rain falls on about 5 days, adding up to 27 mm. All in all, February is a good month for a holiday in Beihai.

Beihai in February
73March23° · Sea 21° · 2.7 h

In March, Beihai is warm: daytime highs average 23 °C, and nights cool down to about 17 °C. The sea averages 20.8 °C – refreshing for a swim. The sun is scarce, with only about 2.7 hours a day. Rain falls on about 7 days, adding up to 43 mm. The air is often humid and muggy. All in all, March is a good month for a holiday in Beihai.

Beihai in March
67April28° · Sea 24° · 3.9 h

In April, Beihai is hot: daytime highs average 28 °C, and even at night it stays warm at around 22 °C. The sea averages 23.8 °C – pleasant for swimming. The sun is scarce, with only about 3.9 hours a day. Rain is frequent, with about 10 rainy days and 77 mm in total. The air is often humid and muggy. All in all, April is a good month for a holiday in Beihai.

Beihai in April
39May31° · Sea 28° · 6.4 h

In May, Beihai is hot: daytime highs average 31 °C, and even at night it stays warm at around 25 °C. The sea averages 27.5 °C – lovely and warm for swimming. Expect around 6.4 hours of sunshine a day. It rains often – on about 17 days, adding up to 183 mm. On about 23 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, May is not an ideal month for a holiday in Beihai.

Beihai in May
29June32° · Sea 29° · 6.2 h

In June, Beihai is hot: daytime highs average 32 °C, and even at night it stays warm at around 27 °C. The sea averages 29.3 °C – almost as warm as a bath. Expect around 6.2 hours of sunshine a day. It rains often – on about 22 days, adding up to 295 mm. On about 28 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, June is not an ideal month for a holiday in Beihai.

Beihai in June
30July32° · Sea 30° · 6.7 h

In July, Beihai is hot: daytime highs average 32 °C, and even at night it stays warm at around 27 °C. The sea averages 29.8 °C – almost as warm as a bath. The sun shines for around 6.7 hours a day. It rains often – on about 23 days, adding up to 320 mm. On about 29 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, July is not an ideal month for a holiday in Beihai.

Beihai in July
29August32° · Sea 30° · 6.3 h

In August, Beihai is hot: daytime highs average 32 °C, and even at night it stays warm at around 26 °C. The sea averages 29.7 °C – almost as warm as a bath. Expect around 6.3 hours of sunshine a day. It rains often – on about 26 days, adding up to 331 mm. On about 30 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, August is not an ideal month for a holiday in Beihai.

Beihai in August
33September32° · Sea 29° · 6.5 h

In September, Beihai is hot: daytime highs average 32 °C, and even at night it stays warm at around 25 °C. The sea averages 29.3 °C – almost as warm as a bath. The sun shines for around 6.5 hours a day. It rains often – on about 20 days, adding up to 221 mm. On about 26 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, September is not an ideal month for a holiday in Beihai.

Beihai in September
65October30° · Sea 28° · 6.6 h

In October, Beihai is hot: daytime highs average 30 °C, and even at night it stays warm at around 22 °C. The sea averages 27.5 °C – lovely and warm for swimming. The sun shines for around 6.6 hours a day. Rain falls on about 9 days, adding up to 89 mm. On about 15 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, October is a good month for a holiday in Beihai.

Beihai in October
85November26° · Sea 25° · 5.5 h

In November, Beihai is warm: daytime highs average 26 °C, and nights cool down to about 18 °C. The sea averages 24.6 °C – pleasant for swimming. Expect around 5.5 hours of sunshine a day. Rain falls on about 6 days, adding up to 44 mm. All in all, November is an excellent month for a holiday in Beihai.

Beihai in November
83December21° · Sea 21° · 4.1 h

In December, Beihai is warm: daytime highs average 21 °C, and nights cool down to about 14 °C. The sea averages 21.1 °C – refreshing for a swim. Expect around 4.1 hours of sunshine a day. Rain is rare: about 4 days bring 27 mm in total. All in all, December is an excellent month for a holiday in Beihai.

Beihai in December

Climate in detail

Climate through the year

Long-term monthly averages. Tap a month to see its details.

Best time to visit

Nights and sleep in Beihai

How warm the nights get in each month, from the mean night-time low. Tap a month for details.

  • Cool 8–15°
  • Pleasant 15–20°
  • Warm 20–24°
  • Hot 24° and more
  • muggy month (15+ muggy days)

WarmOctober: nights around 22°. Tropical nights: a fan or air conditioning helps. Muggy on about 25 days (dew point 18 °C or more).

The coolest nights are in January (12°), the warmest in June (27°). Tropical nights of 20 °C and more are the rule from April to October; then air conditioning or a fan helps you sleep. Nights are pleasant for sleeping (15 to 20 °C) in March and in November. It is muggy (dew point 18 °C or more) on about 243 days a year, mostly from March to October.

Temperatures through the year

Average daytime high, night-time low and sea temperature per month.

OctoberDay 30°Night 22°Sea 28°
DayNightSea
MonthScoreDayNightSeaSunRain daysRain mm
JanuaryJan7619°12°18.8°3.0 h631
FebruaryFeb7721°14°18.9°2.8 h527
MarchMar7323°17°20.8°2.7 h743
AprilApr6728°22°23.8°3.9 h1077
MayMay3931°25°27.5°6.4 h17183
JuneJun2932°27°29.3°6.2 h22295
JulyJul3032°27°29.8°6.7 h23320
AugustAug2932°26°29.7°6.3 h26331
SeptemberSep3332°25°29.3°6.5 h20221
OctoberOct6530°22°27.5°6.6 h989
NovemberNov8526°18°24.6°5.5 h644
DecemberDec8321°14°21.1°4.1 h427

Climate averages 1996–2025 (sunshine partly WMO station normals 1991–2020), not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences

21.48° N, 109.12° E · 0 m · Asia/Shanghai

Swimming calendar

Sea temperature in Beihai

Monthly sea surface temperature with the range of cooler and warmer years.

Sea in October27.5°Cwarm

8 in 10 years: 26.5 – 28.2 °C

Swimming season: Mar – Dec

  • cold
  • fresh
  • refreshing
  • pleasant
  • warm
  • very warm
OctoberMean sea temperature 27.5°8 in 10 years 26.5° – 28.2°
20°
Mean sea temperature8 in 10 years20 °C – comfortable for swimming

The sea temperature in Beihai ranges from 18.8 °C in January to 29.8 °C in July. It is warm enough for a comfortable swim (20 °C and more) from March to December.

The sea temperature varies from year to year: in July, eight out of ten years were between 28.9 and 31.0 °C.

Sea temperature by month
MonthAverageCool yearWarm yearFeels
JanuaryJan18.8°17.6°20.6°fresh
FebruaryFeb18.9°17.3°20.1°fresh
MarchMar20.8°19.1°22.2°refreshing
AprilApr23.8°22.4°24.9°pleasant
MayMay27.5°26.3°28.4°warm
JuneJun29.3°28.4°30.5°very warm
JulyJul29.8°28.9°31.0°very warm
AugustAug29.7°29.1°30.5°very warm
SeptemberSep29.3°28.4°30.2°very warm
OctoberOct27.5°26.5°28.2°warm
NovemberNov24.6°23.5°25.3°pleasant
DecemberDec21.1°20.1°22.2°refreshing
Sunshine

Sunshine hours in Beihai

Average hours of bright sunshine per day, next to the length of the day. Tap a month to select it.

Per year
1,850 hours
Sunniest month
Jul · 6.7 h a day
Least sunshine
Mar · 2.7 h a day
OctoberSunshine 6.6 hDaylight 11.7 hShare of daylight 56 %
SunshineDaylight

In October, the sun shines for about 6.6 of 11.7 hours of daylight in Beihai, 56 % of the daylight hours.

Sunshine hours: measured at the weather station 2 km away, averages 1991–2020 (WMO climate normals). Daylight is the time from sunrise to sunset on the 15th of the month.

Rain

Rain in Beihai: rainy days and rainfall

A rainy day is a day with at least 1 mm of rain or snow; the amount is what falls in the whole month. Tap a month to select it.

Per year
1,689 mm on 154 days
Wettest month
Aug · 331 mm
Driest month
Feb · 27 mm
OctoberRainy days 9Rainfall 89 mm

In October, Beihai has about 9 rainy days with 89 mm of rain in total.

Sun protection

UV index in Beihai

How strong the sun is at noon, month by month, and how quickly unprotected skin burns.

Clear-sky UV in October
9 · very highStay in the shade around midday; SPF 50, clothing, hat and sunglasses.

The sun is strongest in July (UV 12).

Minutes until sunburn in October

Very fair skin
about 15 min
Fair skin
about 20 min
Light brown skin
about 25 min
Olive skin
about 35 min

Rough guide for unprotected skin at noon under a clear sky; clouds lengthen the time, water, sand and snow shorten it. Sunscreen extends the time only partly.

Monthly values: clear-sky noon estimate from the sun's angle, ozone and altitude. UV today: Open-Meteo forecast.

Wind & clouds

Wind and clouds in Beihai

How breezy and how cloudy Beihai is through the year. Tap a month to select it on the whole page.

Wind

Typical daily peak of the wind in km/h: what the afternoon breeze usually reaches, not the gusts.

Year average
20 km/h · moderate breeze
Windiest month
Jul · 22 km/h
Calmest month
Sep · 18 km/h
OctoberWind 19 km/hBeaufort 3
20
WindBeaufort 4

In October, the wind in Beihai typically peaks at 19 km/h during the day: Beaufort 3, gentle breeze.

Breezy months for windsurfing and kiting

From Beaufort 4 (20 km/h) the daily breeze is usually enough for windsurfing and often for kiting: Jun – Jul, Nov – Mar.

Clouds

Average share of the sky covered by cloud, day and night.

Year average
64 % · variable cloud
Clearest month
Oct · 45 %
Cloudiest month
Jun · 85 %
OctoberCloud cover 45 %Sunshine 6.6 h

In October, cloud covers on average 45 % of the sky over Beihai: variable cloud, with about 6.6 hours of sunshine a day.

Wind: mean daily maximum of the hourly wind 10 m above ground (ERA5, 1996–2025). Gusts are stronger, and the model grid of about 28 km smooths out local effects such as capes and valley winds. Clouds: mean total cloud cover of all layers over day and night (ERA5, 1996–2025). Thin high cloud counts as cover even when the sun still shines through.

Heat & humidity

Heat and humidity in Beihai

How often the day gets hot in Beihai (30 °C and more), and in which months heat and humidity come together. Tap a month to select it.

Hot days a year
156 days
Hottest month
Jul · 32 °C
Hot months
May – Oct

Heat calendar

  • pleasant
  • some hot or muggy days
  • often muggy
  • often hot
  • hot and muggy
OctoberHot days (30 °C+) 15Daytime high 30 °C

In October, Beihai has about 15 hot days, with an average daytime high of 30 °C: hot and muggy. Plan outdoor activities for the morning and evening, drink a lot and take breaks in the cool.

Hot days reach at least 30 °C; a month counts as muggy when the mean dew point reaches 18 °C on at least 15 days. Averages from ERA5 and ERA5-Land, 1996–2025. Muggy nights through the year

Planning a trip to Beihai

Weather for your travel dates

Pick your arrival and length of stay, and we sum up the weather to expect.

Beihai in the school holidays

How the weather suits the usual holiday periods. Dates vary by school and region, so each holiday uses the months it usually falls in.

Beihai has its best school-holiday weather during the Christmas holidays (score 80) and its weakest during the summer holidays (score 29).

  • Easter holidays

    Mar – Apr

    69

    Good

    • 26 °C by day
    • Sea 23 °C
    • 3.5 h of sun a day
    • 9 rainy days a month

    Good for: Sightseeing & walks

  • May half-term

    May – Jun

    37

    Poor

    • 31 °C by day
    • Sea 28 °C
    • 6.4 h of sun a day
    • 18 rainy days a month

    Keep in mind: Frequent rain

  • Summer holidays

    Jul – Aug

    29

    Poor

    • 32 °C by day
    • Sea 30 °C
    • 6.4 h of sun a day
    • 25 rainy days a month

    Keep in mind: Frequent rain, Storm season

  • October half-term

    Oct

    65

    Good

    • 30 °C by day
    • Sea 28 °C
    • 6.6 h of sun a day
    • 9 rainy days a month

    Good for: Beach & swimming

    Keep in mind: Storm season

  • Christmas holidays

    Dec – Jan

    80

    ExcellentBest holidays

    • 20 °C by day
    • Sea 20 °C
    • 3.6 h of sun a day
    • 5 rainy days a month

    Good for: Sightseeing & walks

Based on the climate averages 1996–2025.

Getting there

Flying from

Nonstop flight
about 11 h 50 min
Distance
9,420 km
Time zone
UTC+8
Jet lag
About 7 days (7 h east)

Rule of thumb for flying east: for a few days before, go to bed and get up a little earlier, and get plenty of morning light at your destination.

Most routes need a change of planes, which adds time.

Estimated from the straight-line distance: 30 minutes for take-off and landing plus 830 km/h cruising speed.

Storm season

Beihai lies in an area that Pacific typhoons can reach. The typhoon season runs from June to November, with most storms from August to October. A direct hit on any one place is rare, but if you travel then, keep an eye on weather warnings and book flexibly.

  1. January
  2. February
  3. March
  4. April
  5. May
  6. June: Season
  7. July: Season
  8. August: Peak
  9. September: Peak
  10. October: Peak
  11. November: Season
  12. December

Official season dates of the regional warning centres (NOAA, JMA, IMD, Météo-France, BoM, Fiji Meteorological Service); not a forecast.

Compare & alternatives

Compare

Beihai compared

Put Beihai side by side with another destination.

Nearby:
Compare with home:

Beihai vs Zhanjiang

In October Beihai has the better holiday weather (score 65 vs 60). During the day it is about as warm in Zhanjiang as in Beihai. The sea in Zhanjiang is 1 °C cooler. Zhanjiang gets one hour less sunshine a day.

Beihai vs Zhanjiang, in October
in OctoberBeihaiZhanjiang
Holiday weather score6560
Daytime high30°30°
Sea28°27°
Sunshine7 h6 h
Rainy days99
Best timeNov – MarNov – Mar

Through the year

OctoberBeihai 30°Zhanjiang 30°
BeihaiZhanjiang
Go to Zhanjiang
Ranking

China in October: the best places

In October, Beihai ranks 16 among the 31 nearest destinations in this country.

  1. Quanzhou29°25°81
  2. 2Guilin27°80
  3. 3Xiamen29°25°79
  4. 4Yangshuo27°78
  5. 5Shaoshan24°77
  6. 6Shantou29°26°77
  7. 7Changsha24°76
  8. 8Zhangzhou30°73
  9. 16BeihaiThis page30°28°65
All destinations: China

Near Beihai

Other destinations close by.

Places with a climate like Beihai

Destinations whose weather through the year is closest to Beihai's – good alternatives.

  1. 81 % similar52Ha Long BayVietnam30°28°Best time: Nov – Mar
  2. 80 % similar68MacauMacau29°27°Best time: Nov – Feb
  3. 79 % similar68ZhuhaiChina29°27°Best time: Nov – Feb
  4. 79 % similar70ShenzhenChina29°27°Best time: Nov – Feb

Frequently asked questions about Beihai

When is the best time to visit Beihai?

The best time to visit Beihai is from November to March. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.

How warm is the sea in Beihai?

The sea temperature in Beihai ranges from 18.8 °C in January to 29.8 °C in July. It is warm enough for a comfortable swim (20 °C and more) from March to December.

Can you swim in Beihai in October?

Yes. In October the sea averages 27.5 °C – lovely and warm for swimming.

What is the warmest month in Beihai?

July is the warmest month, with average highs of 32 °C and nights around 27 °C. January is the coolest month at 19 °C.

When does it rain most in Beihai?

Rain is frequent from May to September; the wettest month is August with 331 mm. The driest month is February with 27 mm.

How many hours of sunshine does Beihai get?

Beihai gets around 1,850 hours of sunshine a year. The sunniest month is July with 6.7 hours a day; in March there are 2.7 hours a day.

What time zone is Beihai in?

Beihai is on UTC+8 all year.

How long is the flight from London to Beihai?

A nonstop flight from London to Beihai takes about 11 h 50 min, for a straight-line distance of about 9,420 km. Most routes need a change of planes, which adds time.

When is typhoon season in Beihai?

Beihai lies in an area that Pacific typhoons can reach. The typhoon season runs from June to November, with most storms from August to October. A direct hit on any one place is rare, but if you travel then, keep an eye on weather warnings and book flexibly.

Which school holidays are best for Beihai?

Beihai has its best school-holiday weather during the Christmas holidays (score 80) and its weakest during the summer holidays (score 29). Holiday ratings (0–100): Easter holidays 69, May half-term 37, summer holidays 29, October half-term 65, Christmas holidays 80.