Climate guide for Penang, Malaysia

Best Time to Visit
Penang

How to read the score (0–10)
05810
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01 · Malaysia

About Penang

The UNESCO-listed core mixes Straits Chinese shophouses, Hindu and Muslim sites, and the clan jetties that still run out over the water. Penang Hill's funicular gives a cooler view over the island, and the beaches at Batu Ferringhi sit on the north coast. January through March is the drier stretch for walking the heritage grid; July also works, though humidity and brief downpours are part of any month here.

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Did you know?

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Travel Tips

01Street Art & Food Hours
George Town murals are best early before heat and traffic. Hawker centres peak at lunch and after dusk - go slightly off-peak for seats.
02Ferries & Rapid Buses
Ferries and bridges link the island to the mainland; Rapid Penang buses cover beaches and hills. Grab fills gaps cheaper than hotel cars.
03Temple & Park Fees
Many clan houses and temples request small donations; Penang Hill and national park areas have tickets. Street art walks are free.
04Heat & Food Safety
Tropical heat builds fast - hydrate and use shade. Choose busy hawker stalls with high turnover; carry hand sanitizer.

Things to do in Penang

Penang, Malaysia. Live activities and tours from GetYourGuide, matched to this destination.

When to visit Penang: the short answer

The best time to visit Penang is January, followed by February, July. Those months combine the most usable temperatures with the fewest lost days to rain: January averages 27°C with 131 mm of rain and about 27 days with 6+ hours of sunshine. The months to avoid unless you have a specific reason are May, April.

Across the year Penang swings from 27°C in October to 28°C in May, a 2-degree spread, while rainfall ranges from 131 mm in January to 572 mm in October. That is the whole planning problem in one sentence: Penang is not equally good year-round, and the difference between the best and worst month here is 1.8 points on a 10-point scale.

Warmest month: May (28°C). Coolest: October (27°C). Driest: January (131 mm). Wettest: October (572 mm).

Penang month by month

January in Penang tops the year's climate scores

Best window · 4.7/10

January averages 27°C (80°F) and humidity near 83%, so the practical pattern is early mornings, a long midday break, and evenings back outside.

Monthly rainfall reaches 131 mm — wet for this destination — but about 27 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 Penang at 4.7/10 — the reference point every other month on this page is measured against.

Plan for 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 the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella.

February in Penang: expect compromises

Hardest · 3.8/10

February averages 27°C (81°F) and humidity near 82%, so the practical pattern is early mornings, a long midday break, and evenings back outside.

Monthly rainfall reaches 186 mm — wet for this destination — but about 26 days with 6+ hours of sunshine still break through, so keep one indoor fallback in the plan.

It scores 3.8/10 here, 2nd of 12 months, against 4.7/10 in the destination's best month.

Plan for mid-season pricing, with crowds are moderate.

Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella.

March in Penang — off-season conditions

Hardest · 3.1/10

Days in March average 28°C (82°F) and humidity near 82% — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.

This is the year's wettest stretch at 254 mm, but with about 30 days with 6+ hours of sunshine it is not a total loss; an indoor fallback covers the risk.

That is 3.1/10 on the same scale — 9th of 12 months, versus 4.7/10 for the best month here.

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

Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella.

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

April in Penang — the hardest end of the year

Hardest · 3/10

April averages 28°C (82°F) and humidity near 86%, so the practical pattern is early mornings, a long midday break, and evenings back outside.

392 mm makes this the wettest stretch of the year, though about 26 days with 6+ hours of sunshine still appear — keep an indoor fallback ready.

It scores 3/10 here, 11th of 12 months, against 4.7/10 in the destination's best month.

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

Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella.

Flexible dates? January scores 1.7 points higher here — enough to change the trip.

May in Penang — the hardest end of the year

Hardest · 2.9/10

Days in May average 28°C (82°F) and humidity near 86% — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.

This is the year's wettest stretch at 499 mm, but with about 26 days with 6+ hours of sunshine it is not a total loss; an indoor fallback covers the risk.

That is 2.9/10 on the same scale — 12th of 12 months, versus 4.7/10 for the best month here.

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

Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella.

If your dates are flexible, January is materially better in Penang — 1.8 points higher on the same scale.

June in Penang — off-season conditions

Hardest · 3.1/10

June averages 28°C (82°F) and humidity near 85%, so the practical pattern is early mornings, a long midday break, and evenings back outside.

289 mm makes this the wettest stretch of the year, though about 27 days with 6+ hours of sunshine still appear — keep an indoor fallback ready.

It scores 3.1/10 here, 10th of 12 months, against 4.7/10 in the destination's best month.

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

Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella.

Flexible dates? January scores 1.6 points higher here — enough to change the trip.

July in Penang: expect compromises

Hardest · 3.8/10

July averages 28°C (82°F) and humidity near 83%, so the practical pattern is early mornings, a long midday break, and evenings back outside.

Monthly rainfall reaches 161 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 3.8/10 here, 3rd of 12 months, against 4.7/10 in the destination's best month.

Plan for mid-season pricing, with crowds are moderate.

Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella.

August in Penang — the hardest end of the year

Hardest · 3.2/10

Days in August average 27°C (81°F) and humidity near 85% — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.

This is the year's wettest stretch at 429 mm, but with about 27 days with 6+ hours of sunshine it is not a total loss; an indoor fallback covers the risk.

That is 3.2/10 on the same scale — 7th of 12 months, versus 4.7/10 for the best month here.

Expect low-season pricing, and crowds are moderate.

Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella.

If your dates are flexible, January is materially better in Penang — 1.5 points higher on the same scale.

September in Penang — the hardest end of the year

Hardest · 3.2/10

Days in September average 27°C (81°F) and humidity near 86% — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.

This is the year's wettest stretch at 301 mm, but with about 23 days with 6+ hours of sunshine it is not a total loss; an indoor fallback covers the risk.

That is 3.2/10 on the same scale — 8th of 12 months, versus 4.7/10 for the best month here.

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

Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella.

If your dates are flexible, January is materially better in Penang — 1.5 points higher on the same scale.

October in Penang: expect compromises

Hardest · 3.3/10

October averages 27°C (80°F) and humidity near 89%, so the practical pattern is early mornings, a long midday break, and evenings back outside.

572 mm makes this the wettest stretch of the year, though about 23 days with 6+ hours of sunshine still appear — keep an indoor fallback ready.

It scores 3.3/10 here, 4th of 12 months, against 4.7/10 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 the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella.

November in Penang — off-season conditions

Hardest · 3.3/10

November averages 27°C (80°F) and humidity near 90%, so the practical pattern is early mornings, a long midday break, and evenings back outside.

390 mm makes this the wettest stretch of the year, though about 23 days with 6+ hours of sunshine still appear — keep an indoor fallback ready.

It scores 3.3/10 here, 5th of 12 months, against 4.7/10 in the destination's best month.

Plan for 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 the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella.

December in Penang: expect compromises

Hardest · 3.3/10

Days in December average 27°C (80°F) and humidity near 87% — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.

This is the year's wettest stretch at 303 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 3.3/10 on the same scale — 6th of 12 months, versus 4.7/10 for the best month here.

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

Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella.

FAQ

Frequently asked

When is the best time to visit Penang, Malaysia?
In Ideal Weather mode, the best months to visit Penang are January, February, July. January is the single peak month with an Ideal Weather score of 4.7/10 based on temperature, rainfall, humidity, daylight and days with 6+ hours of sunshine.
What is the weather like in Penang year-round?
Penang has a climate profile suited to sightseeing and cultural travel. Average monthly temperatures range from 27°C in October to 28°C in May, with Ideal Weather scores between 2.9 and 4.7 out of 10.
Which months should I avoid in Penang?
The lowest Ideal Weather-scoring months in Penang are May (2.9/10), April (3.0/10), March (3.1/10). These months typically combine less comfortable temperatures, higher rainfall or fewer days with 6+ hours of sunshine.
When is the rainy season in Penang?
October is the wettest month in Penang, averaging about 572 mm of rainfall. January is the driest, at roughly 131 mm.
Which is the sunniest month in Penang?
March sees the most sun in Penang, with about 30 days with 6+ hours of sunshine on average - ideal for outdoor plans.
Is Penang a good destination for sightseeing and cultural travel?
Penang is well suited to sightseeing and cultural travel. Its highest Ideal Weather window (January, February, July) aligns with the conditions travelers usually look for in this style of trip.
How is the bestime.to score for Penang calculated?
Each month receives an Ideal Weather score from 0-10 using ERA5 climate normals for Penang: 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 Penang

Tickets & experiences