Climate and monthly weather forecast
Madang, Papua New Guinea

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The climate of Madang

Madang, a beautiful town in Papua New Guinea, exhibits a climate classified as Af, reflecting the typical Tropical rainforest conditions. Placed near the equator, the region's main weather feature is consistent precipitation throughout the year. There is an insignificant variation in average temperature, ranging from a high peak of 31.2°C (88.2°F) in November to a negligible drop to 30.2°C (86.4°F) during July and August. The lowest average nighttime temperature varies slightly from 23.4°C (74.1°F) in July to 23.9°C (75°F) in January, March, May, and November to December.

Reflecting the tropical climate, humidity remains relatively constant across all the months, varying from 82% in August to 85% during January to April and in December. Rainfall displays a more varied pattern, fluctuating from a low reading of 83mm (3.27") in September up to a peak of 389mm (15.31") in April. The number of rainy days echo the monthly rainfall variations, showing a low of 11 days in September and reaching a maximum of 23 on three separate occasions: January, April, and December.

Sea temperature, daylight hours, sunshine hours, and UV index show pronounced fluctuations. The sea temperature averages between 28.2°C (82.8°F) in August and 29.9°C (85.8°F) in December. Daylight hours are quite consistent, with a minimal difference of just 0.6 hours from the full year low in June and July of 11.8 hours, to the high in January and December of 12.4 hours. Sunshine hours range from a meager 4.6 hours in March to a high of 7.6 hours in September. The UV index remains at the high level of 12 for most of the year, with just a minor drop to 10 in June.

The best time to visit Madang

With regards to the best time to visit Madang, one must consider various climatic factors. A period when the region experiences the least rainfall, from July to September, could be highly desirable. These months have more sunshine hours per day, with September presenting an average of 7.6 hours. During this period, the UV index drops moderately, which also adds to the favorability.

The worst time to visit Madang

In contrast, periods of heavy rainfall and high humidity can be challenging for visitors. Thus, the months of April and December when the region reports an average rainfall higher than 380mm (14.96"), coupled with a humidity percentage of 85%, are least advised for tourism. Furthermore, these months have the highest UV index, which could pose additional concerns for visitors unused to such intense solar radiation.

Spring weather in Madang

March to May represents the spring months in Madang. Average high temperatures remain consistent during this time with negligible variations, staying close to 30.6°C (87.1°F). The low temperature hovers around 23.8°C (74.8°F) to 23.9°C (75°F). Precipitation levels are relatively high, leading from 330mm (12.99") in March to 389mm (15.31") in April before slightly lowering to 343mm (13.5") in May. It is a very humid time with a constant relative humidity of 85%.

Summer weather in Madang

The summer stretches from June to August, and it is slightly cooler with high temperatures decreasing from 30.6°C (87.1°F) in June to 30.2°C (86.4°F) in July and August. Thelowest temperature also drops slightly to 23.6°C (74.5°F) in July. Rainfall levels decrease significantly during this period, from 186mm (7.32") in June to 94mm (3.7") in August, corresponding with a decrease in humidity to 82%.

Autumn weather in Madang

Autumn in Madang, extending from September to November, witnesses a small shift in temperature. Highs are around 30.5°C (86.9°F) to 31.2°C (88.2°F) whereas lows are stable from 23.6°C (74.5°F) to 23.9°C (75°F). A rise in rainfall marks this season; from 83mm (3.27") in September to 280mm (11.02") in November. The level of humidity begins to climb once again, standing at 84% by November end.

Winter weather in Madang

Winters, occurring from December to February, bring virtually unchanged temperatures, maintaining highs around 30.8°C (87.4°F) to 30.9°C (87.6°F) and lows at the stable 23.9°C (75°F) level. Rainfall in these months sees a slight increase with average precipitation at 344mm (13.54") in December, reducing to 292mm (11.5") in February. The relative humidity remains consistently high at 85% throughout the winter months.

Weather in January

January in Madang, Papua New Guinea sets the stage for the remainder of the year, revealing the tropical marvel the region is. The weather displays a harmonious blend of downpours and warm days. Being the start of the year, it retains the festive cheer of the preceding December. Weather in January »

Weather in February

Transiting from January, February exhibits minute fluctuations in its weather conditions. As a testament to the coastal tropics, this unbroken lineage of warmth is expected. Generally perceived as a month of romance, the climate conditions add a sublime touch to the existing aura. Weather in February »

Weather in March

Undeterred by the change of months, Madang continues to furnish moderate warmth in March. Weather conditions moderate into a serene equilibrium, irresistibly inviting to explorers and adventurers alike. Tourists can now enjoy a sprinkling of rainfall that freshens the evergreen surroundings. Weather in March »

Weather in April

April marks the departure from the uniformity of the preceding months regarding climatic conditions. While the temperature profile remains majorly unchanged, the region experiences an increase in rainfall. This further rejuvenates the marine ecosystem, much to the delight of eco-tourists and conservation enthusiasts. Weather in April »

Weather in May

May stays the course, retaining the predictable yet soothing weather pattern of Madang. A captivating blend of sunshine and rains compete for prominence this time of the year. The overall ambience reflects an easy-going ethos, presenting the ideal setting for leisure and relaxation. Weather in May »

Weather in June

June ushers in a subtle transformation in the weather characteristics of Madang. This change promotes a renewed interest in outdoor activities and sightseeing. The natural landscapes flourish under the timely showers, presenting a captivating spectacle. Weather in June »

Weather in July

July treats the residents of Madang to a brief respite from the torrential downpours of preceding months. The milder weather conditions boost outdoor engagement and promote tourism. The serene beaches, refreshed by the decreased rainfall, offer a soothing retreat from the routine. Weather in July »

Weather in August

August in Madang brings a conspicuous decrease in rainfall, catering to serenity seekers. Long, invigorating walks in the coastal sections become frequent, thanks to the milder weather. Being the driest month, the region receives minimum rainfall. Weather in August »

Weather in September

September maintains the weather script, mirroring similar conditions as August. It inaugurates a series of months marked by longer sunshine durations. The aquatic life displays a vibrant spectrum under the clear waters, attracting snorkelling enthusiasts. Weather in September »

Weather in October

October acts as the transition juncture between the less humid months and the wetter spell approaching in November. Tourists can indulge in various water activities as the weather conditions remain ideal. Though rainfall picks up the pace again, the sunshine quotient does not disappear entirely. Weather in October »

Weather in November

The climate in Madang starts to gear up for the approaching year's close with the onset of November. Skywatchers receive a visual treat as the clouds paint vivid images against the blue canvas. Nature lovers can relish in the lush green scape, revitalized with regular showers. Weather in November »

Weather in December

December in Madang wraps up the year on an energetic note, maintaining the excitement across the weather spectrum. The atmosphere buzzes with festive advent, reinforced by the dynamic interplay of sunshine and rainfall. Holidaymakers find themselves gravitated towards the region, adding to the seasonal cheer. Weather in December »

Frequently asked questions

What are the most humid months in Madang?

January through May, with an average relative humidity of 85%, are most humid months.

How much does it rain in Madang?

In Madang, Papua New Guinea, during the entire year, the rain falls for 224 days and collects up to 3107mm (122.32") of precipitation.

What is the month with the highest UV index in Madang?

The months with the highest UV index in Madang are January through May, August through December, with an average maximum UV index of 12.

What is the month with the least sunshine in Madang?

The month with the least sunshine is March, with an average of 4.6h of sunshine.

What is the wettest month in Madang?

The month with the most rainfall in Madang is April, when the rain falls for 23 days and typically aggregates up to 389mm (15.31") of precipitation.

What is the month with the shortest days in Madang?

With an average of 11h and 48min of daylight, June has the shortest days of the year in Madang, Papua New Guinea.

What is the month with the lowest UV index in Madang?

The month with the lowest UV index is June, with an average maximum UV index of 10.

What month is the coldest in Madang?

In Madang, the coldest period comes during July and August, when the average high-temperature touches 30.2°C (86.4°F).

What is the least humid month in Madang?

The least humid month is August, with an average relative humidity of 82%.

What is the month with the coldest sea water in Madang?

The month with the coldest seawater in Madang is August, with an average sea temperature of 28.2°C (82.8°F).

What is the driest month in Madang?

September is the month with the least rainfall in Madang. Rain falls for 11 days and accumulates 83mm (3.27") of precipitation.

What month has the most sunshine in Madang?

With an average of 7.6h of sunshine, September has the most sunshine of the year.

What part of the year is the hottest in Madang?

November proves to be the warmest month, recording an average peak temperature of 31.2°C (88.2°F) and a minimum temperature of 23.9°C (75°F).

When is the sea warmest in Madang?

December is the month with the warmest seawater, with an average sea temperature of 29.9°C (85.8°F).

When are the longest days in Madang?

With an average of 12h and 24min of daylight, December has the longest days of the year.

Is there Daylight Saving Time (DST) in Madang?

Madang does not utilize Daylight Saving Time (DST). +10 timezone is used throughout the entire year.

Average temperature
Madang, Papua New Guinea

Average temperature - Madang, Papua New Guinea

The warmest month (with the highest average high temperature) is November (31.2°C).
The months with the lowest average high temperature are July and August (30.2°C).

The months with the highest average low temperature are January, March, May, November and December (23.9°C).
The coldest month (with the lowest average low temperature) is July (23.4°C).

Average humidity
Madang, Papua New Guinea

Average humidity - Madang, Papua New Guinea

The months with the highest relative humidity are January, February, March, April and May (85%).
The month with the lowest relative humidity is August (82%).

Average rainfall
Madang, Papua New Guinea

Average rainfall - Madang, Papua New Guinea

The wettest month (with the highest rainfall) is April (389.4mm).
The driest month (with the least rainfall) is September (82.6mm).

Average rainfall days
Madang, Papua New Guinea

Average rainfall days - Madang, Papua New Guinea

The months with the highest number of rainy days are January, March, April and December (23 days).
The month with the least rainy days is September (11 days).

Average sea temperature
Madang, Papua New Guinea

Average sea temperature - Madang, Papua New Guinea

The best month for swimming (with the highest average sea temperature) is December (29.9°C).
The coldest month (with the lowest average sea temperature) is August (28.2°C).

Average daylight / Average sunshine
Madang, Papua New Guinea

Average daylight / Average sunshine - Madang, Papua New Guinea

The month with the longest days is December (Average daylight: 12h and 24min).
The month with the shortest days is June (Average daylight: 11h and 48min).

The month with the most sunshine is September (Average sunshine: 7h and 36min).
The month with the least sunshine is March (Average sunshine: 4h and 36min).

Average UV index
Madang, Papua New Guinea

Average UV index - Madang, Papua New Guinea

The months with the highest UV index are January, February, March, April, May, August, September, October, November and December (UV index 12).
The month with the lowest UV index is June (UV index 10).

Madang, Papua New Guinea

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