Climate Overview
The climate in Tena is warm and mild. The average annual temperature is 21°C and approximately 3325mm of precipitation falls per year. Tena receives a notable amount of rainfall throughout the year, including during its driest month. Tena sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
Tena sees moderate temperature variation throughout the year, ranging from 16°C to 27°C. The warmest month is January, when average highs reach 27°C and the mean temperature sits around 22°C. August is the coolest month, with minimum temperatures around 16°C and an average of 20°C. Daily temperature variation is modest, with an average difference of 7°C between highs and lows.
Precipitation
Tena is a very wet location, receiving approximately 3325mm of precipitation annually, which averages out to around 277mm per month. The wettest month is December, averaging 450mm of rainfall. March and October also tend to see above-average precipitation. The driest month is August, with just 142mm. That's 309mm less than December, the wettest month. Precipitation varies noticeably between seasons, with the first half (January to June) of the year generally seeing more rainfall.
Wind
Tena is relatively calm, with an average annual wind speed of 1km/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 1km/h, though still comfortable for most outdoor activities. The calmest conditions occur in June, with average winds dropping to 1km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 0km/h between the calmest and windiest months.
Seasons
52 days until Spring
It is currently winter in Tena, which began on June 21, 2026. Tena 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 27°C, while the coldest stretch bottoms out in August near 16°C. Spring is next, beginning on September 23, 2026 — 52 days from now.
Spring
Temperatures range from 16 to 26°C. Rainfall is heavy, totalling around 739mm across the season with a monthly average of 246mm. Winds are generally light, averaging 1km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 18 to 27°C. Rainfall is heavy, totalling around 936mm across the season with a monthly average of 312mm. Winds are generally light, averaging 1km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 18 to 25°C. Rainfall is heavy, totalling around 997mm across the season with a monthly average of 332mm. Winds are generally light, averaging 1km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 16 to 25°C. Rainfall is heavy, totalling around 652mm across the season with a monthly average of 217mm. Winds are generally light, averaging 1km/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 Tena 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.
