Climate guide for Sydney, Australia

Best Time to Visit
Sydney

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

About Sydney

From September to early December, Sydney glows with jacaranda blooms, lengthening days, and mild coastal walks ahead of the peak holiday heat. Start with a commuter ferry at breakfast, link the Bondi–Coogee path with an ocean-pool swim, then venture beyond the harbor icons to Newtown’s intimate venues or the diverse food cultures of the western suburbs. Conditions shift fast: swim between the flags, respect fierce UV even on cool days, and keep an indoor backup for sudden southerly winds.

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Did you know?

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Travel Tips

01Best time & timing
Target September, October, December — that is where comfort scores peak (9.2/10). March is the weakest month at 6.9/10.
02Weather & what to pack
September averages 16°C with 58 mm of rain and about 28 days with 6+ hours of sunshine. Pack layers you can shed by midday plus one warm layer for the evening.
03Crowds & value
If budget matters, target October — 8.8/10 with lighter demand than September.

Things to do in Sydney

Sydney, Australia. Live activities and tours from GetYourGuide, matched to this destination.

When to visit Sydney: the short answer

Plan Sydney for September, with October, December close behind — the stretch with the most usable temperatures and the fewest lost days to rain: September averages 16°C with 58 mm of rain and about 28 days with 6+ hours of sunshine. The months to avoid unless you have a specific reason are March, May. If budget matters more than perfect weather, May is the strongest of the low-rate months at 7.3/10.

Across the year Sydney swings from 12°C in June to 22°C in January, a 10-degree spread, while rainfall ranges from 58 mm in June to 182 mm in March. In short, Sydney is not equally good year-round — the gap between its best and worst month is 2.3 points on the same 10-point scale.

Warmest month: January (22°C). Coolest: June (12°C). Driest: June (58 mm). Wettest: March (182 mm).

Sydney month by month

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

Good · 7.4/10

At 22°C (72°F) this is comfortable city weather in January, with sightseeing easiest before lunch and after the afternoon peak.

133 mm of rain makes this a wet month here, though with about 27 days with 6+ hours of sunshine there is still bright weather between the fronts.

That is 7.4/10 on the same scale — 10th of 12 months, versus 9.2/10 for the best month here.

Budget for 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.

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

February in Sydney — reliably good (6th best month)

Good · 7.9/10

At 22°C (72°F) this is comfortable city weather in February, with sightseeing easiest before lunch and after the afternoon peak.

109 mm of rain makes this a wet month here, though with about 24 days with 6+ hours of sunshine there is still bright weather between the fronts.

That is 7.9/10 on the same scale — 6th of 12 months, versus 9.2/10 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.

March in Sydney — workable with trade-offs

Trade-offs · 6.9/10

March averages 21°C (70°F) — pleasant for mornings and evenings on foot in the city, with a midday break when the sun is strongest.

Monthly rainfall reaches 182 mm — wet for this destination — but about 25 days with 6+ hours of sunshine still break through, so keep one indoor fallback in the plan.

It scores 6.9/10 here, 12th of 12 months, against 9.2/10 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? September scores 2.3 points higher here — enough to change the trip.

April holds up well in Sydney — 8th best month

Good · 7.7/10

Temperatures hover around 18°C (64°F) — the kind of month where neither heat nor cold forces the schedule.

107 mm of rain makes this a wet month here, though with about 27 days with 6+ hours of sunshine there is still bright weather between the fronts.

That is 7.7/10 on the same scale — 8th of 12 months, versus 9.2/10 for the best month here.

Expect mid-season pricing, and crowds are moderate.

Pack layers you can shed by midday plus one warm layer for the evening, a proper rain shell rather than an umbrella.

May holds up well in Sydney — 11th best month

Good · 7.3/10

May averages 15°C (58°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.

Monthly rainfall reaches 118 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 7.3/10 here, 11th of 12 months, against 9.2/10 in the destination's best month.

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

Pack layers you can shed by midday plus one warm layer for the evening, a proper rain shell rather than an umbrella.

Flexible dates? September scores 1.9 points higher here — enough to change the trip.

June holds up well in Sydney — 5th best month

Good · 8.1/10

Expect 12°C (53°F) in June. A good month for city streets, viewpoints and long meals; leave swimming for another season.

Budget for roughly 58 mm of rain this month — a flexible day or two helps — with about 26 days with 6+ hours of sunshine and 9.9 hours of daylight to work around it.

That is 8.1/10 on the same scale — 5th of 12 months, versus 9.2/10 for the best month here.

Budget for mid-season pricing, and crowds are moderate.

Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in, a packable rain layer.

July in Sydney — reliably good (9th best month)

Good · 7.5/10

Temperatures hover around 12°C (54°F) — the kind of month where neither heat nor cold forces the schedule.

Budget for roughly 91 mm of rain this month — a flexible day or two helps — with about 27 days with 6+ hours of sunshine and 10.2 hours of daylight to work around it.

That is 7.5/10 on the same scale — 9th of 12 months, versus 9.2/10 for the best month here.

Expect mid-season pricing, and crowds are moderate.

Pack layers you can shed by midday plus one warm layer for the evening, a packable rain layer.

If your dates are flexible, September is materially better in Sydney — 1.7 points higher on the same scale.

August holds up well in Sydney — 7th best month

Good · 7.8/10

August averages 14°C (56°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.

Rainfall runs 91 mm, so plan one flexible day in three; you still get about 27 days with 6+ hours of sunshine and 10.9 hours of daylight.

It scores 7.8/10 here, 7th of 12 months, against 9.2/10 in the destination's best month.

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

Pack layers you can shed by midday plus one warm layer for the evening, a packable rain layer.

September in Sydney — the year's strongest window

Best window · 9.2/10

September averages 16°C (61°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.

Rainfall runs 58 mm, so plan one flexible day in three; you still get about 28 days with 6+ hours of sunshine and 11.9 hours of daylight.

On our climate-comfort scale this is the top-ranked month of the year for Sydney at 9.2/10 — the reference point every other month on this page is measured against.

Plan for 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 layers you can shed by midday plus one warm layer for the evening, a packable rain layer.

October is one of the strongest months in Sydney (2nd)

Best window · 8.8/10

Temperatures hover around 18°C (64°F) — the kind of month where neither heat nor cold forces the schedule.

Budget for roughly 75 mm of rain this month — a flexible day or two helps — with about 27 days with 6+ hours of sunshine and 12.9 hours of daylight to work around it.

On our climate-comfort scale this is one of the strongest months of the year for Sydney at 8.8/10 (2nd of 12), just behind September at 9.2/10.

Expect mid-season pricing, and crowds are moderate.

Pack layers you can shed by midday plus one warm layer for the evening, a packable rain layer.

November holds up well in Sydney — 4th best month

Good · 8.3/10

At 20°C (67°F) this is comfortable city weather in November, with sightseeing easiest before lunch and after the afternoon peak.

Budget for roughly 93 mm of rain this month — a flexible day or two helps — with about 25 days with 6+ hours of sunshine and 13.9 hours of daylight to work around it.

That is 8.3/10 on the same scale — 4th of 12 months, versus 9.2/10 for the best month here.

Expect mid-season pricing, and crowds are moderate.

Pack light clothing, a hat and real sun protection, a packable rain layer.

December ranks 3rd of 12 for Sydney — one of the best windows

Best window · 8.7/10

December averages 21°C (70°F) — pleasant for mornings and evenings on foot in the city, with a midday break when the sun is strongest.

Rainfall runs 72 mm, so plan one flexible day in three; you still get about 29 days with 6+ hours of sunshine and 14.4 hours of daylight.

A 8.7/10 puts this among the year's best months in Sydney (3rd of 12); only September scores higher, at 9.2/10.

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 packable rain layer.

FAQ

Frequently asked

When is the best time to visit Sydney, Australia?
In Ideal Weather mode, the best months to visit Sydney are September, October, December, November. September is the single peak month with an Ideal Weather score of 9.2/10 based on temperature, rainfall, humidity, daylight and days with 6+ hours of sunshine.
What is the weather like in Sydney year-round?
Sydney has a climate profile suited to sightseeing and cultural travel. Average monthly temperatures range from 12°C in June to 22°C in January, with Ideal Weather scores between 6.9 and 9.2 out of 10.
Which months should I avoid in Sydney?
The lowest Ideal Weather-scoring months in Sydney are March (6.9/10), May (7.3/10), 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 Sydney?
March is the wettest month in Sydney, averaging about 182 mm of rainfall. June is the driest, at roughly 58 mm.
Which is the sunniest month in Sydney?
December sees the most sun in Sydney, with about 29 days with 6+ hours of sunshine on average - ideal for outdoor plans.
Is Sydney a good destination for sightseeing and cultural travel?
Sydney is well suited to sightseeing and cultural travel. Its highest Ideal Weather window (September, October, December, November) aligns with the conditions travelers usually look for in this style of trip.
How is the bestime.to score for Sydney calculated?
Each month receives an Ideal Weather score from 0-10 using ERA5 climate normals for Sydney: 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 Sydney

Tickets & experiences