Climate Overview
The climate in Aranzazu is temperate. The average annual temperature is 17°C and approximately 6227mm of precipitation falls per year. Aranzazu receives a notable amount of rainfall throughout the year, including during its driest month. Aranzazu sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
Aranzazu has relatively stable temperatures year-round, staying within a 10°C range. January is the warmest month, though highs remain moderate at 22°C with a mean of 17°C. August is the coolest month, with minimum temperatures around 12°C and an average of 16°C. On average, daily temperatures fluctuate by about 10°C between overnight lows and afternoon highs.
Precipitation
Aranzazu is a very wet location, receiving approximately 6227mm of precipitation annually, which averages out to around 519mm per month. The wettest month is May, averaging 759mm of rainfall. June and October also tend to see above-average precipitation. The driest month is January, with just 268mm. That's 490mm less than May, the wettest month. Precipitation varies noticeably between seasons, with the first half (January to June) of the year generally seeing more rainfall.
Wind
Aranzazu is relatively calm, with an average annual wind speed of 3km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is September, averaging 4km/h, though still comfortable for most outdoor activities. The calmest conditions occur in December, with average winds dropping to 3km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 1km/h between the calmest and windiest months.
Seasons
87 days until Winter
It is currently autumn in Aranzazu, which began on September 23, 2026. Aranzazu 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 22°C, while the coldest stretch bottoms out in August near 12°C. Winter is next, beginning on December 21, 2026 (87 days from now).
Spring
Temperatures range from 13 to 22°C. Rainfall is heavy, totalling around 1902mm across the season with a monthly average of 634mm. Winds are generally light, averaging 3km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 12 to 22°C. Rainfall is heavy, totalling around 1666mm across the season with a monthly average of 555mm. Winds are generally light, averaging 3km/h. Comfortable clothing with a light layer for cooler evenings is all you need.
Autumn
Temperatures range from 12 to 22°C. Rainfall is heavy, totalling around 1657mm across the season with a monthly average of 552mm. Winds are generally light, averaging 3km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 12 to 22°C. Rainfall is heavy, totalling around 1003mm across the season with a monthly average of 334mm. Winds are generally light, averaging 3km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.
Monthly Climate Data
The table below shows monthly climate averages for Aranzazu 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.
