Climate Overview
The climate in Tena is warm and mild. The average annual temperature is 23°C and approximately 4258mm 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 has relatively stable temperatures year-round, staying within a 10°C range. The warmest month is September, when average highs reach 28°C and the mean temperature sits around 23°C. August is the coolest month, with minimum temperatures around 18°C and an average of 23°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 4258mm of precipitation annually, which averages out to around 355mm per month. The wettest month is June, averaging 530mm of rainfall. May and March also tend to see above-average precipitation. The driest month is September, with just 175mm. That's 355mm less than June, 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 6km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is January, averaging 6km/h, though still comfortable for most outdoor activities. The calmest conditions occur in July, with average winds dropping to 6km/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
89 days until Winter
It is currently autumn in Tena, which began on March 20, 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 September at around 28°C, while the coldest stretch bottoms out in August near 18°C. Winter is next, beginning on June 21, 2026 — 89 days from now.
Spring
Temperatures range from 19 to 28°C. Rainfall is heavy, totalling around 759mm across the season with a monthly average of 253mm. Winds are generally light, averaging 6km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 20 to 27°C. Rainfall is heavy, totalling around 955mm across the season with a monthly average of 318mm. Winds are generally light, averaging 6km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 20 to 27°C. Rainfall is heavy, totalling around 1334mm across the season with a monthly average of 445mm. Winds are generally light, averaging 6km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 18 to 27°C. Rainfall is heavy, totalling around 1210mm across the season with a monthly average of 403mm. Winds are generally light, averaging 6km/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.
