Merauke climate

Indonesia · 8.50°S, 140.41°E · elevation 8 m · population 116,864

Warmest month
December
high 32 °C90 °F
Coldest month
July
low 21 °C70 °F
Wettest month
March
359 mm14 in
Best time to visit
July–September
by our comfort score
Annual precipitation
1,890 mm74 in
September driest
Year average
27 °C80 °F
tropical monsoon (Am)

Merauke (Indonesia) has a tropical monsoon climate (Köppen Am). The average temperature over the year is 27 °C80 °F, and about 1,890 mm74 in of precipitation falls in an average year.

Temperature by month

Average highAverage low
15°20°25°30°35°60°70°80°90°JFMAMJJASOND33°91°21°69°January: high 30 °C / 86 °F, low 25 °C / 77 °FFebruary: high 30 °C / 85 °F, low 25 °C / 76 °FMarch: high 30 °C / 85 °F, low 24 °C / 76 °FApril: high 30 °C / 85 °F, low 24 °C / 75 °FMay: high 29 °C / 84 °F, low 23 °C / 74 °FJune: high 28 °C / 83 °F, low 22 °C / 72 °FJuly: high 28 °C / 82 °F, low 21 °C / 70 °FAugust: high 29 °C / 84 °F, low 21 °C / 69 °FSeptember: high 30 °C / 86 °F, low 22 °C / 71 °FOctober: high 32 °C / 90 °F, low 23 °C / 73 °FNovember: high 33 °C / 91 °F, low 24 °C / 75 °FDecember: high 32 °C / 90 °F, low 25 °C / 77 °F

Precipitation by month

Precipitation per month (mminches)
010020030040004812JJanuary: 319 mm / 12.5 inFFebruary: 291 mm / 11.4 inMMarch: 359 mm / 14.1 inAApril: 249 mm / 9.8 inMMay: 146 mm / 5.8 inJJune: 72 mm / 2.8 inJJuly: 48 mm / 1.9 inAAugust: 37 mm / 1.5 inSSeptember: 33 mm / 1.3 inOOctober: 56 mm / 2.2 inNNovember: 96 mm / 3.8 inDDecember: 184 mm / 7.2 in35914.1

Merauke climate table

Monthly averages, 2001–2025
MonthHigh °C°FLow °C°FMean °C°FPrecip. mmin
Jan30862577278131913
Feb30852576278129111
Mar30852476278135914
Apr3085247527802499.8
May2984237426791465.8
Jun288322722578722.8
Jul288221702576481.9
Aug298421692576371.5
Sep308622712679331.3
Oct329023732781562.2
Nov339124752883963.8
Dec3290257728831847.2
Year3391216927801,89074

“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.

Humidity, cloud, sun and daylight
MonthHumid.CloudSolarDaylight
Jan85%85%5.112:34
Feb87%86%5.212:23
Mar87%84%5.012:10
Apr88%75%5.011:55
May88%65%4.611:44
Jun88%64%4.211:38
Jul86%61%4.311:40
Aug83%57%4.911:50
Sep79%57%5.512:04
Oct75%57%6.012:18
Nov74%68%5.912:31
Dec78%79%5.512:37

Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.

What the climate of Merauke is like

The warmest month is December, with an average high of 32 °C90 °F and a low of 25 °C77 °F. The coldest is July, when highs average 28 °C82 °F and lows 21 °C70 °F. Seasonal differences are small — just 3.9 °C7 °F between the warmest and the coolest month.

It is wet, with about 1,890 mm74 in of precipitation per year. The wettest three-month stretch is January–March, which brings 51% of the annual total. The wettest month is March (359 mm14 in), the driest is September (33 mm1.3 in).

Relative humidity ranges from 74% in November to 88% in May. The clearest skies (lowest average cloud amount, 57%) are typical of August. Average wind speed near the ground ranges from 7 km/h (5 mph) in March to 14 km/h (9 mph) in September.

Best time to visit Merauke

Based on these averages, the most comfortable months for sightseeing and outdoor activities are July–September. Average highs then reach 28 °C82 °F to 30 °C86 °F. Precipitation is 33 mm1.3 in to 48 mm1.9 in per month.

The most challenging month is March, which is very wet (359 mm14 in) and humid (87% relative humidity).

Comfort score: months are ranked by how close they come to an ideal. That means an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.

What to pack for Merauke

  • Wetter months (December–April) — highs 3085 to 32 °C90 °F, lows 2475 to 25 °C77 °F, about 280 mm11 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water and a good rain jacket or umbrella and quick-drying shoes.
  • Drier months (May–November) — highs 2882 to 33 °C91 °F, lows 2169 to 24 °C75 °F, about 70 mm2.7 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses.

How Merauke compares

World Climates covers 110 places in Indonesia. By annual mean temperature, Merauke is the 75th warmest of them. By annual precipitation, it is the 86th wettest. See all of them on the Indonesia climate page.

Some places in other countries have a very similar pattern of temperature and rainfall (with seasons shifted for the other hemisphere). The closest matches are Port Moresby (Papua New Guinea, Aw), Ciudad del Carmen (Mexico, As) and Chetumal (Mexico, Aw).

Nearby places

All places in Indonesia

Frequently asked questions

What is the warmest month in Merauke?

December is the warmest month in Merauke. Its average high is 32 °C (90 °F) and its average low is 25 °C (77 °F).

What is the coldest month in Merauke?

July is the coldest month. Its average high is 28 °C (82 °F) and its average low is 21 °C (70 °F).

When does it rain the most in Merauke?

March is the wettest month with about 359 mm (14.1 in) of precipitation. September is the driest with about 33 mm (1.3 in).

What is the best time to visit Merauke?

Judging by long-term averages, the most comfortable months are July–September.

About this data

All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station. So they can differ from airport records. The gaps are largest on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.

Sources and method