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Banjarmasin weather & best time to visit

City break

Banjarmasin at a glance

Best time
Aug
Warmest month
Sep · 34°
Warmest sea
Apr · 29.9°
Sunshine a year
1,530 h
Rain a year
2,319 mm
Climate
Tropical
Time zone
UTC+8
Elevation
8 m

Climate in Banjarmasin

Banjarmasin has a tropical climate: it is warm all year round, and the seasons differ mainly in how much rain falls. September is the warmest month with average highs of 34 °C, while January is the coolest at 33 °C. With around 1,530 hours of sunshine a year, Banjarmasin is rather dull; August is the sunniest month with 5.1 hours a day.

Holiday weather through the year

Best time to visit

Best time to visit Banjarmasin

The best time to visit Banjarmasin is in August. For a beach holiday – sea from 21 °C, warm and mostly dry – go from August to September. From March to November it can get very hot, with highs of up to 34 °C. The rainy season is from November to March; the wettest month is December with 330 mm.

Banjarmasin through the seasons

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

Banjarmasin in the dry season

Apr – Oct

19

Poor

  • 33–34 °C by day
  • Sea 29 °C
  • 4.7 h of sun a day
  • 124 rainy days in all

Banjarmasin in the rainy season

Nov – Mar

14

Poor

  • 33–34 °C by day
  • Sea 29 °C
  • 3.5 h of sun a day
  • 138 rainy days in all

Which month for what?

Beach & swimming

Aug – Sep

Sea from 21 °C, warm and mostly dry

Sightseeing & hiking

No month

15–28 °C and not too much rain

Peak heat

Mar – Nov

Highs of 33 °C or more

Rainy months

Nov – Mar

Rainy season or more than 12 rainy days

Find your perfect month

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

Swimming in the sea
Sunshine
Little rain

Your best months: July – September

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

Your holiday weather, at a glance

Weather in October

Weather in October

9

Holiday weather in October

Poor

Best time to visit: August

Keep in mindPeak heat

A typical day in October

  1. Morning, 08:00: about 28°
  2. Midday, 13:00: about 34°
  3. Afternoon, 16:00: about 33°
  4. Evening, 20:00: about 29°
  5. Night, 23:00: about 27°

06:0218:13

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 05:49–06:30 · evening 17:45–18:25
Blue hour
Morning 05:41–05:49 · evening 18:25–18:33

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 Banjarmasin compared with home

Home:

Loading the climate at home …

Early or late October?

In October, daytime highs stay at about 34° from start to end. The sea warms from 29° to 30°.

Early or late October?
October1 Oct31 Oct
Daytime high34°34°
Night-time low23°24°
Sea29°30°
Daylight12.1 h12.2 h

What is the weather like in Banjarmasin in October?

In October, Banjarmasin is very hot: daytime highs average 34 °C, and even at night it stays warm at around 24 °C. The sea averages 29.4 °C – almost as warm as a bath. Expect around 4.4 hours of sunshine a day. It rains often – on about 19 days, adding up to 164 mm. The thermometer climbs to 30 °C or more every day. The air is often humid and muggy. All in all, October is not an ideal month for a holiday in Banjarmasin.

More details for October

Daylight
12 h 11 min06:02 – 18:13
UV index
14 · extremeclear sky, noon (estimate)All months
Muggy days
31 daysdew point 18 °C or moreAll months
Wind
13 km/haverage daily peakAll months
Cloud cover
81 %on averageAll months
Hot days
31 days30 °C or moreAll months
Time zone
UTC+8offset from UTC

How the score comes together

  • Temperatureweight 50 %9 %
  • Sunshineweight 20 %23 %
  • Few rainy daysweight 30 %0 %

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 Banjarmasin

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

vs

August has the better holiday weather in Banjarmasin: score 30 against 9. Daytime highs are about the same. The sea is 1 °C cooler in August. August has 8 fewer rainy days. The sun shines an hour longer a day in August.

October vs August, Banjarmasin
MonthOctoberAugust
Holiday weather score930better
Daytime high34°34°
Night-time low24°23°
Sea29.4°28.3°
Sunshine4.4 h5.1 hbetter
Rainy days1911better
Rainfall164 mm62 mmbetter
Muggy days3131

Based on the climate averages 1996–2025.

Banjarmasin month by month

The typical weather for every month at a glance.

16January33° · Sea 29° · 3.2 h

In January, Banjarmasin is hot: daytime highs average 33 °C, and even at night it stays warm at around 24 °C. The sea averages 29.0 °C – almost as warm as a bath. The sun is scarce, with only about 3.2 hours a day. It is the rainy season: rain falls on about 29 days, totalling 299 mm. On about 30 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, January is not an ideal month for a holiday in Banjarmasin.

Banjarmasin in January
15February33° · Sea 29° · 3.4 h

In February, Banjarmasin is hot: daytime highs average 33 °C, and even at night it stays warm at around 24 °C. The sea averages 29.1 °C – almost as warm as a bath. The sun is scarce, with only about 3.4 hours a day. It is the rainy season: rain falls on about 25 days, totalling 253 mm. On about 28 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, February is not an ideal month for a holiday in Banjarmasin.

Banjarmasin in February
15March33° · Sea 30° · 3.8 h

In March, Banjarmasin is very hot: daytime highs average 33 °C, and even at night it stays warm at around 24 °C. The sea averages 29.6 °C – almost as warm as a bath. The sun is scarce, with only about 3.8 hours a day. It is the rainy season: rain falls on about 28 days, totalling 286 mm. The thermometer climbs to 30 °C or more every day. The air is often humid and muggy. All in all, March is not an ideal month for a holiday in Banjarmasin.

Banjarmasin in March
14April33° · Sea 30° · 4.3 h

In April, Banjarmasin is very hot: daytime highs average 33 °C, and even at night it stays warm at around 25 °C. The sea averages 29.9 °C – almost as warm as a bath. Expect around 4.3 hours of sunshine a day. It rains often – on about 27 days, adding up to 232 mm. The thermometer climbs to 30 °C or more every day. The air is often humid and muggy. All in all, April is not an ideal month for a holiday in Banjarmasin.

Banjarmasin in April
15May34° · Sea 30° · 4.8 h

In May, Banjarmasin is very hot: daytime highs average 34 °C, and even at night it stays warm at around 25 °C. The sea averages 29.9 °C – almost as warm as a bath. Expect around 4.8 hours of sunshine a day. It rains often – on about 22 days, adding up to 149 mm. The thermometer climbs to 30 °C or more every day. The air is often humid and muggy. All in all, May is not an ideal month for a holiday in Banjarmasin.

Banjarmasin in May
16June33° · Sea 29° · 4.5 h

In June, Banjarmasin is very hot: daytime highs average 33 °C, and even at night it stays warm at around 24 °C. The sea averages 29.3 °C – almost as warm as a bath. Expect around 4.5 hours of sunshine a day. It rains often – on about 18 days, adding up to 115 mm. The thermometer climbs to 30 °C or more every day. The air is often humid and muggy. All in all, June is not an ideal month for a holiday in Banjarmasin.

Banjarmasin in June
24July33° · Sea 29° · 4.8 h

In July, Banjarmasin is very hot: daytime highs average 33 °C, and even at night it stays warm at around 23 °C. The sea averages 28.6 °C – lovely and warm for swimming. Expect around 4.8 hours of sunshine a day. It rains often – on about 15 days, adding up to 95 mm. The thermometer climbs to 30 °C or more every day. The air is often humid and muggy. All in all, July is not an ideal month for a holiday in Banjarmasin.

Banjarmasin in July
30August34° · Sea 28° · 5.1 h

In August, Banjarmasin is very hot: daytime highs average 34 °C, and even at night it stays warm at around 23 °C. The sea averages 28.3 °C – lovely and warm for swimming. Expect around 5.1 hours of sunshine a day. Rain is frequent, with about 11 rainy days and 62 mm in total. The thermometer climbs to 30 °C or more every day. The air is often humid and muggy. All in all, August is not an ideal month for a holiday in Banjarmasin – and yet one of the best months here.

Banjarmasin in August
25September34° · Sea 29° · 4.9 h

In September, Banjarmasin is very hot: daytime highs average 34 °C, and even at night it stays warm at around 23 °C. The sea averages 28.6 °C – lovely and warm for swimming. Expect around 4.9 hours of sunshine a day. Rain is frequent, with about 12 rainy days and 80 mm in total. The thermometer climbs to 30 °C or more every day. The air is often humid and muggy. All in all, September is not an ideal month for a holiday in Banjarmasin.

Banjarmasin in September
9October34° · Sea 29° · 4.4 h

In October, Banjarmasin is very hot: daytime highs average 34 °C, and even at night it stays warm at around 24 °C. The sea averages 29.4 °C – almost as warm as a bath. Expect around 4.4 hours of sunshine a day. It rains often – on about 19 days, adding up to 164 mm. The thermometer climbs to 30 °C or more every day. The air is often humid and muggy. All in all, October is not an ideal month for a holiday in Banjarmasin.

Banjarmasin in October
12November34° · Sea 30° · 3.9 h

In November, Banjarmasin is very hot: daytime highs average 34 °C, and even at night it stays warm at around 24 °C. The sea averages 29.8 °C – almost as warm as a bath. The sun is scarce, with only about 3.9 hours a day. It is the rainy season: rain falls on about 27 days, totalling 255 mm. The thermometer climbs to 30 °C or more every day. The air is often humid and muggy. All in all, November is not an ideal month for a holiday in Banjarmasin.

Banjarmasin in November
14December33° · Sea 29° · 3.0 h

In December, Banjarmasin is hot: daytime highs average 33 °C, and even at night it stays warm at around 24 °C. The sea averages 29.4 °C – almost as warm as a bath. The sun is scarce, with only about 3.0 hours a day. It is the rainy season: rain falls on about 29 days, totalling 330 mm. On about 30 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, December is not an ideal month for a holiday in Banjarmasin.

Banjarmasin 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 Banjarmasin

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

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

HotOctober: nights around 24°. Hot nights: air conditioning makes sleeping much easier. Muggy on about 31 days (dew point 18 °C or more).

The coolest nights are in August (23°), the warmest in April (25°). Nights stay tropical all year (20 °C and more), so a room with air conditioning or at least a fan pays off. It is muggy (dew point 18 °C or more) all year, on about 365 days a year.

Temperatures through the year

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

OctoberDay 34°Night 24°Sea 29°
DayNightSea
MonthScoreDayNightSeaSunRain daysRain mm
JanuaryJan1633°24°29.0°3.2 h29299
FebruaryFeb1533°24°29.1°3.4 h25253
MarchMar1533°24°29.6°3.8 h28286
AprilApr1433°25°29.9°4.3 h27232
MayMay1534°25°29.9°4.8 h22149
JuneJun1633°24°29.3°4.5 h18115
JulyJul2433°23°28.6°4.8 h1595
AugustAug3034°23°28.3°5.1 h1162
SeptemberSep2534°23°28.6°4.9 h1280
OctoberOct934°24°29.4°4.4 h19164
NovemberNov1234°24°29.8°3.9 h27255
DecemberDec1433°24°29.4°3.0 h29330

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

3.32° S, 114.59° E · 8 m · Asia/Makassar

Swimming calendar

Sea temperature in Banjarmasin

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

Sea in October29.4°Cvery warm

8 in 10 years: 29.0 – 29.9 °C

Swimming season: all year

  • cold
  • fresh
  • refreshing
  • pleasant
  • warm
  • very warm
OctoberMean sea temperature 29.4°8 in 10 years 29.0° – 29.9°
20°
Mean sea temperature8 in 10 years20 °C – comfortable for swimming

The sea temperature in Banjarmasin ranges from 28.3 °C in August to 29.9 °C in April. At 20 °C and more, the sea is warm enough for swimming all year round.

The sea temperature varies from year to year: in April, eight out of ten years were between 29.6 and 30.3 °C.

Sea temperature by month
MonthAverageCool yearWarm yearFeels
JanuaryJan29.0°28.3°30.0°very warm
FebruaryFeb29.1°28.8°29.6°very warm
MarchMar29.6°29.2°30.0°very warm
AprilApr29.9°29.6°30.3°very warm
MayMay29.9°29.4°30.4°very warm
JuneJun29.3°28.8°29.8°very warm
JulyJul28.6°28.0°29.0°warm
AugustAug28.3°27.9°28.7°warm
SeptemberSep28.6°28.0°29.1°warm
OctoberOct29.4°29.0°29.9°very warm
NovemberNov29.8°29.4°30.2°very warm
DecemberDec29.4°28.7°30.1°very warm
Sunshine

Sunshine hours in Banjarmasin

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

Per year
1,530 hours
Sunniest month
Aug · 5.1 h a day
Least sunshine
Dec · 3.0 h a day
OctoberSunshine 4.4 hDaylight 12.2 hShare of daylight 36 %
SunshineDaylight

In October, the sun shines for about 4.4 of 12.2 hours of daylight in Banjarmasin, 36 % of the daylight hours.

Sunshine hours: measured at the weather station 23 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 Banjarmasin: 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
2,319 mm on 262 days
Wettest month
Dec · 330 mm
Driest month
Aug · 62 mm
OctoberRainy days 19Rainfall 164 mm

In October, Banjarmasin has about 19 rainy days with 164 mm of rain in total.

Sun protection

UV index in Banjarmasin

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

Clear-sky UV in October
14 · extremeAvoid the midday sun; SPF 50+, covering clothes, hat and sunglasses.

The sun is strongest in March (UV 14).

Minutes until sunburn in October

Very fair skin
about 10 min
Fair skin
about 10 min
Light brown skin
about 15 min
Olive skin
about 20 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 Banjarmasin

How breezy and how cloudy Banjarmasin 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
11 km/h · light breeze or less
Windiest month
Sep · 14 km/h
Calmest month
Apr · 9 km/h
OctoberWind 13 km/hBeaufort 3
20
WindBeaufort 4

In October, the wind in Banjarmasin typically peaks at 13 km/h during the day: Beaufort 3, gentle breeze.

Breezy months for windsurfing and kiting

The daily breeze rarely reaches Beaufort 4 (20 km/h), so wind sports depend on single windy days.

Clouds

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

Year average
81 % · mostly overcast
Clearest month
Aug · 65 %
Cloudiest month
Dec · 95 %
OctoberCloud cover 81 %Sunshine 4.4 h

In October, cloud covers on average 81 % of the sky over Banjarmasin: mostly overcast, with about 4.4 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 Banjarmasin

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

Hot days a year
361 days
Hottest month
Sep · 34 °C
Hot months
All year

Heat calendar

  • pleasant
  • some hot or muggy days
  • often muggy
  • often hot
  • hot and muggy
OctoberHot days (30 °C+) 31Daytime high 34 °C

In October, it is hot in Banjarmasin every day, with an average daytime high of 34 °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 Banjarmasin

Weather for your travel dates

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

Banjarmasin 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.

Banjarmasin has its best school-holiday weather during the summer holidays (score 28) and its weakest during October half-term (score 9).

  • Easter holidays

    Mar – Apr

    14

    Poor

    • 33 °C by day
    • Sea 30 °C
    • 4.1 h of sun a day
    • 27 rainy days a month

    Keep in mind: Peak heat, Frequent rain

  • May half-term

    May – Jun

    15

    Poor

    • 34 °C by day
    • Sea 30 °C
    • 4.7 h of sun a day
    • 21 rainy days a month

    Keep in mind: Peak heat

  • Summer holidays

    Jul – Aug

    28

    PoorBest holidays

    • 34 °C by day
    • Sea 28 °C
    • 5.0 h of sun a day
    • 12 rainy days a month

    Keep in mind: Peak heat

  • October half-term

    Oct

    9

    Poor

    • 34 °C by day
    • Sea 29 °C
    • 4.4 h of sun a day
    • 19 rainy days a month

    Keep in mind: Peak heat

  • Christmas holidays

    Dec – Jan

    15

    Poor

    • 33 °C by day
    • Sea 29 °C
    • 3.1 h of sun a day
    • 29 rainy days a month

    Keep in mind: Frequent rain

Based on the climate averages 1996–2025.

Getting there

Flying from

Nonstop flight
about 15 h
Distance
12,010 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.

Compare & alternatives

Compare

Banjarmasin compared

Put Banjarmasin side by side with another destination.

Nearby:
Compare with home:

Banjarmasin vs Balikpapan

In October Balikpapan has the better holiday weather (score 34 vs 9). During the day Balikpapan is 4 °C cooler than Banjarmasin. The sea is about equally warm.

Banjarmasin vs Balikpapan, in October
in OctoberBanjarmasinBalikpapan
Holiday weather score934
Daytime high34°30°
Sea29°29°
Sunshine4 h4 h
Rainy days1923
Best timeAugJan – Feb, Jun – Sep, Nov

Through the year

OctoberBanjarmasin 34°Balikpapan 30°
BanjarmasinBalikpapan
Go to Balikpapan
Ranking

Indonesia in October: the best places

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

  1. Komodo Island30°28°99
  2. 2Maumere32°29°88
  3. 3Gili Trawangan31°29°81
  4. 4Senggigi32°29°79
  5. 5Gili Air32°29°76
  6. 6Sanur29°28°76
  7. 7Kuta29°27°76
  8. 8Nusa Dua29°27°76
  9. 31BanjarmasinThis page34°29°9
All destinations: Indonesia

Near Banjarmasin

Other destinations close by.

Places with a climate like Banjarmasin

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

  1. 71 % similar29MakassarIndonesia33°29°Best time: Aug
  2. 69 % similar28Bandar LampungIndonesia31°29°Best time: Jul – Sep
  3. 63 % similar20KlangMalaysia33°30°Best time: Feb, Jul, Dec
  4. 63 % similar58Port KlangMalaysia33°30°Best time: Feb, Jul

Frequently asked questions about Banjarmasin

When is the best time to visit Banjarmasin?

The best time to visit Banjarmasin is in August. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.

How warm is the sea in Banjarmasin?

The sea temperature in Banjarmasin ranges from 28.3 °C in August to 29.9 °C in April. At 20 °C and more, the sea is warm enough for swimming all year round.

Can you swim in Banjarmasin in October?

Yes. In October the sea averages 29.4 °C – almost as warm as a bath.

What is the warmest month in Banjarmasin?

September is the warmest month, with average highs of 34 °C and nights around 23 °C. January is the coolest month at 33 °C.

When does it rain most in Banjarmasin?

The rainy season is from November to March; the wettest month is December with 330 mm. The driest month is August with 62 mm.

How many hours of sunshine does Banjarmasin get?

Banjarmasin gets around 1,530 hours of sunshine a year. The sunniest month is August with 5.1 hours a day; in December there are 3.0 hours a day.

What time zone is Banjarmasin in?

Banjarmasin is on UTC+8 all year.

How long is the flight from London to Banjarmasin?

A nonstop flight from London to Banjarmasin takes about 15 h, for a straight-line distance of about 12,010 km. Most routes need a change of planes, which adds time.

Which school holidays are best for Banjarmasin?

Banjarmasin has its best school-holiday weather during the summer holidays (score 28) and its weakest during October half-term (score 9). Holiday ratings (0–100): Easter holidays 14, May half-term 15, summer holidays 28, October half-term 9, Christmas holidays 15.