Climate guide for Apia, Samoa

Best Time to Visit
Apia

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

About Apia

Apia sits on a sheltered harbour on Upolu, Samoa's main island, where markets, churches and colonial-era buildings line the waterfront. Robert Louis Stevenson spent his last years at Vailima above the town, now a museum, and his tomb looks over the coast. Palolo Deep Marine Reserve offers easy snorkelling, and the beaches of the south coast are a drive away. May to October is drier; November to April is humid and wet, with cyclone risk.

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Did you know?

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Travel Tips

01Best time & timing
Climate scores swing from 6.9/10 in May to 8.9/10 in September; the safest picks are September, August, March.
02Weather & what to pack
Expect around 27°C and 69 mm of rain in September, with roughly 27 bright days. Pack the lightest clothing you own, a hat and more water than feels necessary.
03Crowds & value
Peak-season pricing concentrates in September. For better value, March scores 8.3/10 at lower-season rates.

Things to do in Apia

Apia, Samoa. Live activities and tours from GetYourGuide, matched to this destination.

When to visit Apia: the short answer

The best time to visit Apia is September, followed by August, March. Those months combine the most usable temperatures with the fewest lost days to rain: September averages 27°C with 69 mm of rain and about 27 days with 6+ hours of sunshine. The months to avoid unless you have a specific reason are May, February. If budget matters more than perfect weather, February is the strongest of the low-rate months at 7.2/10.

Across the year Apia swings from 27°C in August to 28°C in April, a 2-degree spread, while rainfall ranges from 69 mm in September to 267 mm in February. That is the whole planning problem in one sentence: Apia is not equally good year-round, and the difference between the best and worst month here is 2 points on a 10-point scale.

Warmest month: April (28°C). Coolest: August (27°C). Driest: September (69 mm). Wettest: February (267 mm).

Apia month by month

January in Apia — reliably good (10th best month)

Good · 7.4/10

January averages 28°C (83°F) and humidity near 81%, so the practical pattern is early mornings, a long midday break, and evenings back outside.

206 mm makes this the wettest stretch of the year, though about 28 days with 6+ hours of sunshine still appear — keep an indoor fallback ready.

It scores 7.4/10 here, 10th of 12 months, against 8.9/10 in the destination's best month.

Figure on mid-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? September scores 1.5 points higher here — enough to change the trip.

February in Apia: strong conditions, 11th of 12

Good · 7.2/10

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

267 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 7.2/10 here, 11th of 12 months, against 8.9/10 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? September scores 1.7 points higher here — enough to change the trip.

March holds up well in Apia — 3rd best month

Good · 8.3/10

Days in March average 28°C (83°F) and humidity near 80% — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.

108 mm of rain makes this a wet month here, though with about 29 days with 6+ hours of sunshine there is still bright weather between the fronts.

That is 8.3/10 on the same scale — 3rd of 12 months, versus 8.9/10 for the best month here.

Expect mid-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.

April in Apia — reliably good (5th best month)

Good · 8/10

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

Monthly rainfall reaches 125 mm — wet for this destination — but about 22 days with 6+ hours of sunshine still break through, so keep one indoor fallback in the plan.

It scores 8/10 here, 5th of 12 months, against 8.9/10 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.

May in Apia — middling scores, decent value

Trade-offs · 6.9/10

Days in May average 28°C (83°F) and humidity near 82% — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.

155 mm of rain signals a properly wet month, with only about 17 days with 6+ hours of sunshine to count on — build indoor options into the schedule.

That is 6.9/10 on the same scale — 12th of 12 months, versus 8.9/10 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, September is materially better in Apia — 2 points higher on the same scale.

June in Apia — reliably good (6th best month)

Good · 7.8/10

June averages 28°C (82°F) and humidity near 81%, so the practical pattern is early mornings, a long midday break, and evenings back outside.

Rainfall runs 79 mm, so plan one flexible day in three; you still get about 16 days with 6+ hours of sunshine and 11.2 hours of daylight.

It scores 7.8/10 here, 6th of 12 months, against 8.9/10 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 packable rain layer.

July holds up well in Apia — 7th best month

Good · 7.8/10

July averages 27°C (81°F) and humidity near 80%, so the practical pattern is early mornings, a long midday break, and evenings back outside.

Rainfall runs 91 mm, so plan one flexible day in three; you still get about 17 days with 6+ hours of sunshine and 11.3 hours of daylight.

It scores 7.8/10 here, 7th of 12 months, against 8.9/10 in the destination's best month.

Figure on mid-season pricing, with crowds are moderate.

Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a packable rain layer.

August ranks 2nd of 12 for Apia — one of the best windows

Best window · 8.8/10

Days in August average 27°C (80°F) and humidity near 79% — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.

Budget for roughly 72 mm of rain this month — a flexible day or two helps — with about 23 days with 6+ hours of sunshine and 11.5 hours of daylight to work around it.

On our climate-comfort scale this is one of the strongest months of the year for Apia at 8.8/10 (2nd of 12), just behind September at 8.9/10.

Budget for peak pricing, and 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 packable rain layer.

September in Apia tops the year's climate scores

Best window · 8.9/10

Days in September average 27°C (81°F) and humidity near 80% — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.

Budget for roughly 69 mm of rain this month — a flexible day or two helps — with about 27 days with 6+ hours of sunshine and 11.9 hours of daylight to work around it.

On our climate-comfort scale this is the top-ranked month of the year for Apia at 8.9/10 — the reference point every other month on this page is measured against.

Expect peak pricing, and 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 the lightest breathable clothing you own, a hat, and more water than feels necessary, a packable rain layer.

October holds up well in Apia — 4th best month

Good · 8.2/10

October averages 27°C (81°F) and humidity near 80%, so the practical pattern is early mornings, a long midday break, and evenings back outside.

Monthly rainfall reaches 114 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.

It scores 8.2/10 here, 4th of 12 months, against 8.9/10 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.

November in Apia: strong conditions, 8th of 12

Good · 7.6/10

November averages 28°C (82°F) and humidity near 81%, so the practical pattern is early mornings, a long midday break, and evenings back outside.

Monthly rainfall reaches 162 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.

It scores 7.6/10 here, 8th of 12 months, against 8.9/10 in the destination's best month.

Figure on 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.

December in Apia: strong conditions, 9th of 12

Good · 7.5/10

Days in December average 28°C (82°F) and humidity near 81% — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.

197 mm of rain makes this a wet month here, though with about 30 days with 6+ hours of sunshine there is still bright weather between the fronts.

That is 7.5/10 on the same scale — 9th of 12 months, versus 8.9/10 for the best month here.

Expect mid-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.

FAQ

Frequently asked

When is the best time to visit Apia, Samoa?
In Ideal Weather mode, the best months to visit Apia are September, August, March, October, April. September is the single peak month with an Ideal Weather score of 8.9/10 based on temperature, rainfall, humidity, daylight and days with 6+ hours of sunshine.
What is the weather like in Apia year-round?
Apia has a climate profile suited to beach and coastal travel. Average monthly temperatures range from 27°C in August to 28°C in April, with Ideal Weather scores between 6.9 and 8.9 out of 10.
Which months should I avoid in Apia?
The lowest Ideal Weather-scoring months in Apia are May (6.9/10), February (7.2/10), January (7.4/10). These months typically combine less comfortable temperatures, higher rainfall or fewer days with 6+ hours of sunshine.
When is the rainy season in Apia?
February is the wettest month in Apia, averaging about 267 mm of rainfall. September is the driest, at roughly 69 mm.
Which is the sunniest month in Apia?
December sees the most sun in Apia, with about 30 days with 6+ hours of sunshine on average - ideal for outdoor plans.
Is Apia a good destination for beach and coastal travel?
Apia is well suited to beach and coastal travel. Its highest Ideal Weather window (September, August, March, October, April) aligns with the conditions travelers usually look for in this style of trip.
How is the bestime.to score for Apia calculated?
Each month receives an Ideal Weather score from 0-10 using ERA5 climate normals for Apia: temperature comfort, precipitation, humidity, daylight hours, and days with 6+ hours of sunshine - weighted for beach and coastal 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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Curated in Apia

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