Climate guide for Madang, Papua New Guinea

Best Time to Visit
Madang

How to read the score (0–10)
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01 · Papua New Guinea

About Madang

Madang combines a compact coastal town with some of Papua New Guinea's most accessible marine landscapes. Reefs, islands, mangroves, fishing communities, local markets, and nearby cultural routes can fill several days, but boats, tides, weather, and local permissions determine what actually runs. Use established dive or boat operators, confirm safety equipment and communications, and do not touch coral or wildlife. Keep valuables secure, ask before photographing people, check current travel guidance, and leave enough time between marine activities and onward domestic flights.

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Did you know?

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Travel Tips

01Best time & timing
August leads the year at 6.2/10, with September and June close behind — February (4.6/10) is the one to avoid without a specific reason.
02Weather & what to pack
In August plan for about 23°C; the month brings 126 mm of rain. Pack light clothing, a hat and real sun protection.
03Budget timing
If budget matters most, June is the cheapest month (5.7/10) — expect weather trade-offs.

Things to do in Madang

Madang, Papua New Guinea. Live activities and tours from GetYourGuide, matched to this destination.

When to visit Madang: the short answer

Plan Madang for August, with September, June close behind — the stretch with the most usable temperatures and the fewest lost days to rain: August averages 23°C with 126 mm of rain and about 29 days with 6+ hours of sunshine. The months to avoid unless you have a specific reason are February, May.

Across the year Madang swings from 23°C in February to 24°C in September, a 1-degree spread, while rainfall ranges from 124 mm in September to 484 mm in February. In short, Madang is not equally good year-round — the gap between its best and worst month is 1.6 points on the same 10-point scale.

Warmest month: September (24°C). Coolest: February (23°C). Driest: September (124 mm). Wettest: February (484 mm).

Madang month by month

January in Madang — off-season conditions

Hardest · 4.8/10

At 23°C (74°F) this is comfortable city weather in January, with sightseeing easiest before lunch and after the afternoon peak.

This is the year's wettest stretch at 397 mm, but with about 24 days with 6+ hours of sunshine it is not a total loss; an indoor fallback covers the risk.

That is 4.8/10 on the same scale — 5th of 12 months, versus 6.2/10 for the best month here.

Expect mid-season pricing, and crowds are light for this destination.

Pack light clothing, a hat and real sun protection, a proper rain shell rather than an umbrella.

February in Madang — off-season conditions

Hardest · 4.6/10

At 23°C (73°F) this is comfortable city weather in February, with sightseeing easiest before lunch and after the afternoon peak.

Expect monsoon-level rainfall at 484 mm: only about 18 days with 6+ hours of sunshine across the month, and stretches of heavy rain are normal.

That is 4.6/10 on the same scale — 12th of 12 months, versus 6.2/10 for the best month here.

Budget for low-season pricing, and crowds are light for this destination.

Pack light clothing, a hat and real sun protection, a proper rain shell rather than an umbrella.

If your dates are flexible, August is materially better in Madang — 1.6 points higher on the same scale.

March in Madang — off-season conditions

Hardest · 4.8/10

March averages 23°C (74°F) — pleasant for mornings and evenings on foot in the city, with a midday break when the sun is strongest.

436 mm makes this the wettest stretch of the year, though about 25 days with 6+ hours of sunshine still appear — keep an indoor fallback ready.

It scores 4.8/10 here, 6th of 12 months, against 6.2/10 in the destination's best month.

Figure on low-season pricing, with crowds are light for this destination. That combination — decent conditions at the lowest rates of the year — is the best value window on this page.

Pack light clothing, a hat and real sun protection, a proper rain shell rather than an umbrella.

April in Madang — off-season conditions

Hardest · 4.8/10

At 23°C (73°F) this is comfortable city weather in April, with sightseeing easiest before lunch and after the afternoon peak.

This is the year's wettest stretch at 425 mm, but with about 22 days with 6+ hours of sunshine it is not a total loss; an indoor fallback covers the risk.

That is 4.8/10 on the same scale — 7th of 12 months, versus 6.2/10 for the best month here.

Budget for low-season pricing, and crowds are light for this destination.

Pack light clothing, a hat and real sun protection, a proper rain shell rather than an umbrella.

May in Madang — off-season conditions

Hardest · 4.7/10

May averages 23°C (74°F) — pleasant for mornings and evenings on foot in the city, with a midday break when the sun is strongest.

297 mm makes this the wettest stretch of the year, though about 25 days with 6+ hours of sunshine still appear — keep an indoor fallback ready.

It scores 4.7/10 here, 11th of 12 months, against 6.2/10 in the destination's best month.

Plan for low-season pricing, with crowds are light for this destination.

Pack light clothing, a hat and real sun protection, a proper rain shell rather than an umbrella.

Flexible dates? August scores 1.5 points higher here — enough to change the trip.

June in Madang — middling scores, decent value

Trade-offs · 5.7/10

At 23°C (74°F) this is comfortable city weather in June, with sightseeing easiest before lunch and after the afternoon peak.

147 mm of rain makes this a wet month here, though with about 28 days with 6+ hours of sunshine there is still bright weather between the fronts.

That is 5.7/10 on the same scale — 3rd of 12 months, versus 6.2/10 for the best month here.

Expect mid-season pricing, and crowds are moderate.

Pack light clothing, a hat and real sun protection, a proper rain shell rather than an umbrella.

July in Madang — workable with trade-offs

Trade-offs · 5.7/10

At 23°C (74°F) this is comfortable city weather in July, with sightseeing easiest before lunch and after the afternoon peak.

147 mm of rain makes this a wet month here, though with about 28 days with 6+ hours of sunshine there is still bright weather between the fronts.

That is 5.7/10 on the same scale — 4th of 12 months, versus 6.2/10 for the best month here.

Budget for mid-season pricing, and this is one of the busiest months here.

Pack light clothing, a hat and real sun protection, a proper rain shell rather than an umbrella.

August in Madang tops the year's climate scores

Best window · 6.2/10

August averages 23°C (74°F) — pleasant for mornings and evenings on foot in the city, with a midday break when the sun is strongest.

Monthly rainfall reaches 126 mm — wet for this destination — but about 29 days with 6+ hours of sunshine still break through, so keep one indoor fallback in the plan.

On our climate-comfort scale this is the top-ranked month of the year for Madang at 6.2/10 — the reference point every other month on this page is measured against.

Figure on peak pricing, with this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.

Pack light clothing, a hat and real sun protection, a proper rain shell rather than an umbrella.

September in Madang — workable with trade-offs

Trade-offs · 6.2/10

September averages 24°C (74°F) — pleasant for mornings and evenings on foot in the city, with a midday break when the sun is strongest.

Monthly rainfall reaches 124 mm — wet for this destination — but about 28 days with 6+ hours of sunshine still break through, so keep one indoor fallback in the plan.

It scores 6.2/10 here, 2nd of 12 months, against 6.2/10 in the destination's best month.

Figure on peak pricing, with crowds are moderate. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.

Pack light clothing, a hat and real sun protection, a proper rain shell rather than an umbrella.

October in Madang — off-season conditions

Hardest · 4.8/10

At 23°C (74°F) this is comfortable city weather in October, with sightseeing easiest before lunch and after the afternoon peak.

This is the year's wettest stretch at 268 mm, but with about 28 days with 6+ hours of sunshine it is not a total loss; an indoor fallback covers the risk.

That is 4.8/10 on the same scale — 8th of 12 months, versus 6.2/10 for the best month here.

Budget for low-season pricing, and crowds are light for this destination.

Pack light clothing, a hat and real sun protection, a proper rain shell rather than an umbrella.

November in Madang — off-season conditions

Hardest · 4.8/10

At 23°C (74°F) this is comfortable city weather in November, with sightseeing easiest before lunch and after the afternoon peak.

This is the year's wettest stretch at 348 mm, but with about 25 days with 6+ hours of sunshine it is not a total loss; an indoor fallback covers the risk.

That is 4.8/10 on the same scale — 9th of 12 months, versus 6.2/10 for the best month here.

Budget for low-season pricing, and crowds are light for this destination.

Pack light clothing, a hat and real sun protection, a proper rain shell rather than an umbrella.

December in Madang — off-season conditions

Hardest · 4.8/10

December averages 23°C (74°F) — pleasant for mornings and evenings on foot in the city, with a midday break when the sun is strongest.

458 mm makes this the wettest stretch of the year, though about 22 days with 6+ hours of sunshine still appear — keep an indoor fallback ready.

It scores 4.8/10 here, 10th of 12 months, against 6.2/10 in the destination's best month.

Plan for mid-season pricing, with crowds are light for this destination.

Pack light clothing, a hat and real sun protection, a proper rain shell rather than an umbrella.

FAQ

Frequently asked

When is the best time to visit Madang, Papua New Guinea?
In Ideal Weather mode, the best months to visit Madang are August, September, June. August is the single peak month with an Ideal Weather score of 6.2/10 based on temperature, rainfall, humidity, daylight and days with 6+ hours of sunshine.
What is the weather like in Madang year-round?
Madang has a climate profile suited to sightseeing and cultural travel. Average monthly temperatures range from 23°C in February to 24°C in September, with Ideal Weather scores between 4.6 and 6.2 out of 10.
Which months should I avoid in Madang?
The lowest Ideal Weather-scoring months in Madang are February (4.6/10), May (4.7/10), January (4.8/10). These months typically combine less comfortable temperatures, higher rainfall or fewer days with 6+ hours of sunshine.
When is the rainy season in Madang?
February is the wettest month in Madang, averaging about 484 mm of rainfall. September is the driest, at roughly 124 mm.
Which is the sunniest month in Madang?
August sees the most sun in Madang, with about 29 days with 6+ hours of sunshine on average - ideal for outdoor plans.
Is Madang a good destination for sightseeing and cultural travel?
Madang is well suited to sightseeing and cultural travel. Its highest Ideal Weather window (August, September, June) aligns with the conditions travelers usually look for in this style of trip.
How is the bestime.to score for Madang calculated?
Each month receives an Ideal Weather score from 0-10 using ERA5 climate normals for Madang: temperature comfort, precipitation, humidity, daylight hours, and days with 6+ hours of sunshine - weighted for sightseeing and cultural travel.

Climate data: Open-Meteo ERA5 historical archive, the five most recent complete years (2021–2025). Scores are monthly averages for that window, not forecasts, and short-window precipitation can differ from longer-term normals. “Sunny days” count days with at least 6 hours of measured sunshine — they are not dry days.

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Explore by month

Curated in Madang

Tickets & experiences