Climate Overview
The climate in Altos is cold. The average annual temperature is -47°C. Altos sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
Temperatures in Altos vary considerably across the year, with a 26°C difference between the coldest and warmest months. January is the warmest month, though highs remain moderate at -34°C with a mean of -35°C. December brings the harshest conditions, with lows dropping to -60°C and an average temperature of -58°C. Daily temperature variation is modest, with an average difference of 3°C between highs and lows. The sharpest temperature change occurs between January and February, with a 8°C shift in average temperatures.
Precipitation
The driest month is January, with just 0mm.
Wind
Altos is relatively calm, with an average annual wind speed of 10km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is August, averaging 12km/h, though still comfortable for most outdoor activities. The calmest conditions occur in March, with average winds dropping to 3km/h, making it an ideal period for wind-sensitive activities. Wind speeds vary significantly across the year, with a 9km/h difference between the calmest and windiest months. This level of variation is worth factoring into travel plans. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 12km/h in winter, 12km/h in spring, 7km/h in summer, 8km/h in autumn.
Seasons
16 days until Spring
It is currently winter in Altos, which began on June 21, 2026. Altos sits near the equator, so the traditional four-season cycle is less pronounced. Temperatures remain relatively stable year-round. The warmest period peaks in January at around -34°C, while the coldest stretch bottoms out in December near -60°C. Spring is next, beginning on September 23, 2026 (16 days from now).
Spring
Temperatures range from -58 to -52°C. Precipitation is minimal, with only around 0mm for the entire season. Winds are generally light, averaging 12km/h. Light layers work well as temperatures warm through the season. It is a great time to be outdoors.
Summer
Temperatures range from -60 to -34°C. Precipitation is minimal, with only around 0mm for the entire season. Winds are generally light, averaging 7km/h. Comfortable clothing with a light layer for cooler evenings is all you need.
Autumn
Temperatures range from -45 to -37°C. Precipitation is minimal, with only around 0mm for the entire season. Winds are generally light, averaging 8km/h. Layered clothing works best as temperatures gradually cool. Enjoy the crisp air and changing scenery.
Winter
Temperatures range from -51 to -45°C. Precipitation is minimal, with only around 0mm for the entire season. Winds are generally light, averaging 12km/h. Heavy layering and insulated outerwear are essential. Exposed skin should be minimised outdoors.
Monthly Climate Data
The table below shows monthly climate averages for Altos based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.
