Climate guide for Osorno, Chile

Best Time to Visit
Osorno

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

About Osorno

Osorno sits in dairy country below its namesake volcano-gateway toward Puerto Octay and Llanquihue lake towns. In Chile, November through March in the Southern Hemisphere usually delivers the most reliable conditions for sightseeing travel - then use monthly climate scores to fine-tune around crowds, storms, or snow depth.

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Did you know?

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Travel Tips

01Best time & timing
Target January, February, December — that is where comfort scores peak (10.0/10). July is the weakest month at 4.3/10.
02Weather & what to pack
January averages 18°C with 11 mm of rain and about 31 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 March — 9.1/10 with lighter demand than January.

Things to do in Osorno

Osorno, Chile. Live activities and tours from GetYourGuide, matched to this destination.

When to visit Osorno: the short answer

Plan Osorno for January, with February, December close behind — the stretch with the most usable temperatures and the fewest lost days to rain: January averages 18°C with 11 mm of rain and about 31 days with 6+ hours of sunshine. The months to avoid unless you have a specific reason are July, June. If budget matters more than perfect weather, September is the strongest of the low-rate months at 6/10.

Across the year Osorno swings from 5°C in July to 18°C in January, a 12-degree spread, while rainfall ranges from 8 mm in February to 96 mm in June. In short, Osorno is not equally good year-round — the gap between its best and worst month is 5.7 points on the same 10-point scale.

Warmest month: January (18°C). Coolest: July (5°C). Driest: February (8 mm). Wettest: June (96 mm).

Osorno month by month

January: the best month of the year in Osorno

Best window · 10/10

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

At just 11 mm for the month, rain will not shape your plans; you get about 31 days with 6+ hours of sunshine and 14.6 hours of daylight.

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

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 layers you can shed by midday plus one warm layer for the evening.

February ranks 2nd of 12 for Osorno — one of the best windows

Best window · 10/10

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

At just 8 mm for the month, rain will not shape your plans; you get about 28 days with 6+ hours of sunshine and 13.6 hours of daylight.

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

Expect 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 layers you can shed by midday plus one warm layer for the evening.

March is one of the strongest months in Osorno (4th)

Best window · 9.1/10

March averages 14°C (57°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.

Expect 31 mm of rain — occasional showers rather than washed-out days — alongside about 16 days with 6+ hours of sunshine and 12.3 daylight hours.

A 9.1/10 puts this among the year's best months in Osorno (4th of 12); only January scores higher, at 10/10.

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

Pack layers you can shed by midday plus one warm layer for the evening.

April in Osorno — reliably good (7th best month)

Good · 7/10

Expect 11°C (52°F) in April. A good month for city streets, viewpoints and long meals; leave swimming for another season.

Budget for roughly 49 mm of rain this month — a flexible day or two helps — with about 4 days with 6+ hours of sunshine and 10.9 hours of daylight to work around it.

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

Expect 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.

If your dates are flexible, January is materially better in Osorno — 3 points higher on the same scale.

May in Osorno — workable with trade-offs

Trade-offs · 5.8/10

May averages 8°C (46°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.

Expect 44 mm of rain — occasional showers rather than washed-out days — alongside almost no days with 6+ hours of sunshine and 9.7 daylight hours.

It scores 5.8/10 here, 9th of 12 months, against 10/10 in the destination's best month.

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

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

Flexible dates? January scores 4.2 points higher here — enough to change the trip.

June in Osorno — the hardest end of the year

Hardest · 4.3/10

Expect 7°C (44°F) in June. A good month for city streets, viewpoints and long meals; leave swimming for another season.

Budget for roughly 96 mm of rain this month — a flexible day or two helps — with almost no days with 6+ hours of sunshine and 9.1 hours of daylight to work around it.

That is 4.3/10 on the same scale — 11th of 12 months, versus 10/10 for the best month here.

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

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

If your dates are flexible, January is materially better in Osorno — 5.7 points higher on the same scale.

July in Osorno — off-season conditions

Hardest · 4.3/10

Expect 5°C (42°F) in July. A good month for city streets, viewpoints and long meals; leave swimming for another season.

Budget for roughly 81 mm of rain this month — a flexible day or two helps — with almost no days with 6+ hours of sunshine and 9.4 hours of daylight to work around it.

That is 4.3/10 on the same scale — 12th of 12 months, versus 10/10 for the best month here.

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

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

If your dates are flexible, January is materially better in Osorno — 5.7 points higher on the same scale.

August in Osorno — workable with trade-offs

Trade-offs · 5.7/10

August averages 6°C (43°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.

Expect 41 mm of rain — occasional showers rather than washed-out days — alongside about 2 days with 6+ hours of sunshine and 10.4 daylight hours.

It scores 5.7/10 here, 10th of 12 months, against 10/10 in the destination's best month.

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

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

Flexible dates? January scores 4.3 points higher here — enough to change the trip.

September in Osorno — workable with trade-offs

Trade-offs · 6/10

September averages 7°C (45°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.

Rainfall runs 66 mm, so plan one flexible day in three; you still get about 10 days with 6+ hours of sunshine and 11.7 hours of daylight.

It scores 6/10 here, 8th of 12 months, against 10/10 in the destination's best month.

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

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

Flexible dates? January scores 4 points higher here — enough to change the trip.

October ranks 6th of 12 for Osorno — one of the best windows

Best window · 8.7/10

Expect 10°C (50°F) in October. A good month for city streets, viewpoints and long meals; leave swimming for another season.

With around 18 mm of rain, any showers tend to pass through rather than settle in; about 24 days with 6+ hours of sunshine and 13.1 hours of daylight fill the rest.

On our climate-comfort scale this is one of the strongest months of the year for Osorno at 8.7/10 (6th of 12), just behind January at 10/10.

Expect mid-season pricing, and crowds are moderate.

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

November is one of the strongest months in Osorno (5th)

Best window · 9.1/10

Temperatures hover around 13°C (55°F) — the kind of month where neither heat nor cold forces the schedule.

With around 38 mm of rain, any showers tend to pass through rather than settle in; about 26 days with 6+ hours of sunshine and 14.3 hours of daylight fill the rest.

On our climate-comfort scale this is one of the strongest months of the year for Osorno at 9.1/10 (5th of 12), just behind January at 10/10.

Expect mid-season pricing, and crowds are moderate.

Pack layers you can shed by midday plus one warm layer for the evening.

December in Osorno — one of the year's strongest windows (3rd)

Best window · 10/10

December averages 16°C (60°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.

Rain is a non-issue at 9 mm for the month, with about 31 days with 6+ hours of sunshine and 14.9 hours of daylight to work with.

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

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 layers you can shed by midday plus one warm layer for the evening.

FAQ

Frequently asked

When is the best time to visit Osorno, Chile?
In Ideal Weather mode, the best months to visit Osorno are January, February, December, March, November. January is the single peak month with an Ideal Weather score of 10.0/10 based on temperature, rainfall, humidity, daylight and days with 6+ hours of sunshine.
What is the weather like in Osorno year-round?
Osorno has a climate profile suited to sightseeing and cultural travel. Average monthly temperatures range from 5°C in July to 18°C in January, with Ideal Weather scores between 4.3 and 10.0 out of 10.
Which months should I avoid in Osorno?
The lowest Ideal Weather-scoring months in Osorno are June (4.3/10), July (4.3/10), August (5.7/10). These months typically combine less comfortable temperatures, higher rainfall or fewer days with 6+ hours of sunshine.
When is the rainy season in Osorno?
June is the wettest month in Osorno, averaging about 96 mm of rainfall. February is the driest, at roughly 8 mm.
Which is the sunniest month in Osorno?
January sees the most sun in Osorno, with about 31 days with 6+ hours of sunshine on average - ideal for outdoor plans.
Is Osorno a good destination for sightseeing and cultural travel?
Osorno is well suited to sightseeing and cultural travel. Its highest Ideal Weather window (January, February, December, March, November) aligns with the conditions travelers usually look for in this style of trip.
How is the bestime.to score for Osorno calculated?
Each month receives an Ideal Weather score from 0-10 using ERA5 climate normals for Osorno: 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 Osorno

Tickets & experiences