Atacama Weekend Weather

Weekends in Atacama are most dependable in November and least dependable in August

A typical November weekend in Atacama runs 24°C by day and 8°C overnight with rain on about 10% of days — a baseline weekend score of 89/100. A August weekend drops to 71/100. 12 of 12 months keep weekend rain risk below one day in four. The live Saturday-versus-Sunday verdict for the coming weekend loads at the top of this page.

Typical November weekend score: 89/100

Climate baseline for Atacama, used to judge whether the coming weekend is typical. The head-to-head Saturday and Sunday comparison above is live Open-Meteo forecast data and updates hourly.

Last updated: · Live forecast data refreshes hourly.

Key numbers for Atacama

Strongest weekend monthNovember — 89/100
Weakest weekend monthAugust — 71/100
Months with low rain risk12 of 12
Typical best-month weekend24°C day / 8°C night
Daylight in the best month13.2 hours
Wettest weekend riskDecember — rain on about 7% of days
Annual weekend spread18 points between the best and worst month
Forecast reliabilityWeekend forecasts stabilise from Thursday onward

What the data actually tells you

When a weekend is worth booking ahead

Weekend quality only varies 18 points across the year in Atacama, so any weekend is a reasonable bet and the day-level choice matters more than the month.

Saturday or Sunday

Climate cannot tell Saturday from Sunday — only the live forecast can. What climatology does tell you is how much is at stake: in August the gap between a good and a bad day in Atacama is worth planning around, in November far less so.

Daylight for a two-day trip

November gives 13.2 hours of daylight per day against 10.5 hours at the low point of the year — that is how much usable weekend you actually get.

Rain exposure

Across the year Atacama sees rain on roughly 3 days, so an average weekend carries about a 1% chance of a wet day.

Typical weekend conditions in Atacama, month by month

Baseline expectations for a weekend in each month. Compare them against the live Saturday and Sunday forecast above to see whether this weekend is better or worse than normal.

MonthDay / nightRain riskSunDaylightWeekend baseline
January27°C / 12°C17%7h13.3h77/100
February27°C / 12°C7%11h12.8h87/100
March26°C / 10°C7%11h12.1h87/100
April24°C / 8°C10%10h11.4h86/100
May21°C / 4°C13%9h10.8h81/100
June19°C / 2°C17%8h10.5h73/100
July18°C / 0°C17%8h10.7h71/100
August18°C / 0°C17%8h11.2h71/100
September19°C / 2°C17%8h11.9h75/100
October21°C / 4°C13%9h12.6h83/100
November24°C / 8°C10%10h13.2h89/100
December26°C / 10°C7%11h13.5h89/100

What we compare between Saturday and Sunday

Each metric is scored for both days and the winner is marked per row in the live comparison for Atacama.

MetricWhy it decides the day
Daily mean temperatureFull credit between 15°C and 25°C; sharp penalties below 0°C or above 35°C.
Rain probabilityUnder 20% is a clean go; 70% or higher removes the day from outdoor consideration.
Wind speedBelow 20 km/h is a bonus; gusts above 40 km/h cut the score sharply.
Cloud coverDecides whether the day reads as bright or flat, and drives photography value.
UV indexSets protection needs for a full day outside.
Daylight and sunsetDetermines how late outdoor plans can run.

Making the call on a Atacama weekend

Weekend day score, factor by factor

Each day in Atacama starts at a neutral 50 and gains or loses points on four measured variables. The day with the higher score is the one we tell you to prioritize.

FactorWeightWhat it measures
Temperature comfort ±20 pts Full credit when the daily mean sits between 15°C and 25°C; penalties below 0°C or above 35°C.
Rain probability ±20 pts Under 20% adds the full bonus; 70% or higher removes 20 points outright.
Wind speed ±15 pts Below 20 km/h is a bonus; gusts above 40 km/h cut the score sharply.
Baseline 50 pts Neutral starting point, so scores stay comparable between cities and weekends.

Above 75 means go ahead with outdoor plans. Between 50 and 75 expect compromises. Below 50, plan indoors. Weekend forecasts are most reliable from Thursday onward.

Frequently asked questions

Which day is better this weekend in Atacama, Saturday or Sunday?

The live comparison at the top of this page scores both days on temperature, rain probability, wind, cloud, UV and daylight, and names the winner. Climate alone cannot separate two consecutive days — only the current forecast can.

When are weekends most reliable in Atacama?

November, with a baseline weekend score of 89/100: 24°C days, 13.2 hours of daylight and rain on about 10% of days. August is the weakest at 71/100.

How accurate is a weekend forecast in Atacama?

Checked on Monday, a weekend forecast is indicative only. From Thursday onward ensemble models converge and the Saturday-versus-Sunday call becomes dependable. We show forecast confidence alongside each day so you know which case you are in.

What weekend score is good enough to plan outdoors in Atacama?

Above 75 means commit. Between 50 and 75 means go ahead with an indoor fallback. Below 50 means move weather-dependent plans to the other day or indoors.

How often is a Atacama weekend rained on?

With rain on roughly 3 days a year, an average day carries about a 1% chance of rain. In December that rises to about 7%.

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