Climate and average weather in Tena

In Tena, the weather is humid, warm, wet, and mostly cloudy and remarkably steady, with daytime highs holding near warm levels all year. The wettest stretch peaks around June.

Best: mid April to late December

Over the course of the year, the temperature in Tena typically varies from 18°C to 27°C, and is rarely below 17°C or above 29°C. October is the hottest month of the year, while July is the coldest.

Based on the travel score, the best times of year to visit Tena for warm-weather activities are from early January to mid March and mid April to late December.

Hottest
Oct
27°
Coldest
Jul
18°
Wettest
Jun
404 mm
Driest
Sep
217 mm
Rain / yr
3748 mm
322 wet days
Daylight
11.9–12.1 h
shortest–longest
Elevation
610 m
1.0°S
Clearest
Aug
69% cloud

Tena is city in Ecuador, capital of the Napo Province.

Density
2,314/km²
people per km²
Founded
1560

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Tena weather by month, at a glance

The whole year in one picture — sky, rain, humidity, temperature and travel score. Click any band to jump to its full chart.

Each stripe is one measure across the whole year, stacked so a single day reads top to bottom. The sky band runs overcast grey on top down to clear blue at the base — more blue means sunnier — followed by the rainfall curve, the humidity band, a temperature strip that tints each stretch of the year by how warm its average high is, and the travel-score line at the foot. Scan straight down any date to read that day across every measure at once; the score climbs highest around mid April to late December.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

Daily average highs and lows in Tena, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.

Temperatures in Tena stay fairly even through the year, without a distinct hot or cool season. The warmest month is October, with an average high of 27°C and low of 19°C; the coolest is July, with an average low of 18°C and high of 25°C.

Days typically run about 7°C warmer than nights year-round.

15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan2719
Feb2720
Mar2720
Apr2620
May2619
Jun2519
Jul2518
Aug2618
Sep2718
Oct2719
Nov2719
Dec2719

Average hourly temperature in Tena

A compact picture of the whole year, hour by hour: each column is a day, each row an hour, and the color is the modeled average temperature. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.

Read left to right for the day of the year and top to bottom for the hour of the day; the color is the modeled temperature, cool blues through to hot reds on the same scale as the other charts. A vertical slice is a single day's swing — coolest just before dawn, warmest in the mid-afternoon — while a horizontal slice follows one hour across the seasons. The darker overlay marks night and the lighter one the twilight around sunrise and sunset. Colors run warmest on October afternoons, near 27°C, and coldest before dawn in July, near 18°C.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM

Tena weather by month

Every month at a glance. Click a month for its detailed page.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 19°25924.912.14.2
Feb27° / 20°28523.8123.9
Mar27° / 20°35629.2123.5
Apr26° / 20°33928123.6
May26° / 19°38828.7123.7
Jun25° / 19°40428.111.93.8
Jul25° / 18°38527.511.94.1
Aug26° / 18°27024.4124.5
Sep27° / 18°21724.6124.2
Oct27° / 19°24726.8123.9
Nov27° / 19°29828123.6
Dec27° / 19°30127.712.13.9

Chance of rain

How likely it is to rain on a typical day, and how that shifts across the wetter and drier seasons.

Tena gets about 3748 mm of precipitation a year. On a typical day the chance of rain is very wet, but that rises and falls sharply with the seasons.

The wetter season lasts 5.0 months, from around Feb 21 to Jul 22, peaking in March at about 95% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Aug 11.

June is the wettest month by volume, with 404 mm over about 28 wet days; September is the driest, with 217 mm.

0%10%20%30%40%50%60%70%80%90%100%110%JanFebMarAprMayJunJulAugSepOctNovDecdrierwetterdriermostly drysome rainoften wetvery wetMar 25 · 95%Aug 11 · 78%
Rain on a day (%)Rain days
Jan8125
Feb8524
Mar9429
Apr9428
May9329
Jun9328
Jul8928
Aug8024
Sep8225
Oct8727
Nov9328
Dec8928

Monthly rainfall

Over a full year, Tena collects about 3748 mm of rain across 322 wet days — roughly 312 mm in an average month.

It doesn’t fall evenly. June is the wettest month with 404 mm, while September is the driest at just 217 mm. The three wettest months alone bring about 31% of the year’s total.

050100150200250300350400450JanFebMarAprMayJunJulAugSepOctNovDec259285356339388404385270217247298301
Rainfall (mm)Rain days
Jan25925
Feb28524
Mar35629
Apr33928
May38829
Jun40428
Jul38528
Aug27024
Sep21725
Oct24727
Nov29828
Dec30128

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

How often the daytime sky is clear, partly cloudy or overcast.

In Tena, the average share of the sky covered by clouds shows moderate seasonal variation over the course of the year.

The clearer part of the year begins around June 29 and lasts for 3.7 months, ending around October 20. The clearest month is August, when the sky is clear, mostly clear, or partly cloudy 32% of the time on average.

The cloudier part of the year begins around February 14 and lasts for 4.4 months, ending around June 28. The cloudiest month is March, when it is overcast or mostly cloudy 93% of the time.

0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%JanFebMarAprMayJunJulAugSepOctNovDecSep 1 · 34%Apr 10 · 6%mostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan2179
Feb1684
Mar793
Apr793
May1090
Jun1486
Jul2278
Aug3268
Sep3070
Oct1981
Nov1288
Dec1783

Daylight, sunrise and sunset

DaylightNight

Hours of daylight through the year, with sunrise and sunset times.

The gold band is daylight — sunrise runs along its lower edge, sunset along the upper — so it widens toward summer and pinches toward winter, with night the dark area above and below. Close to the equator, Tena barely changes through the year: days stay near 12 h 06 min of light in every season.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan12.16:196:22
Feb12.06:256:27
Mar12.06:216:21
Apr12.06:126:11
May12.06:096:06
Jun11.96:136:10
Jul11.96:186:15
Aug12.06:166:14
Sep12.06:066:05
Oct12.05:565:57
Nov12.05:555:58
Dec12.16:066:09

Sunny days

How many genuinely sunny days each month brings — days the sky stays clear or mostly clear — banded into plain-language zones.

Tena averages about 1 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 0 and 3 days.

The sunnier stretch runs 3.5 months, from around Jul 7 to Oct 21. The sunniest month is August, with roughly 3 sunny days (gloomy).

The greyest month is April, down near 0 sunny days — about 94% fewer than the August peak.

0510JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedAug 263 daysApr 100 days
Sunny daysSky
Jan2Gloomy
Feb1Gloomy
Mar0Gloomy
Apr0Gloomy
May0Gloomy
Jun1Gloomy
Jul2Gloomy
Aug3Gloomy
Sep3Gloomy
Oct2Gloomy
Nov1Gloomy
Dec1Gloomy

Humidity comfort

DryComfortableHumidMuggyOppressiveMiserable

Share of days at each humidity comfort level, based on the dew point — the measure that tracks how muggy it actually feels.

Humidity comfort is graded by the dew point — the temperature at which the air would be fully saturated — because it tracks how muggy it actually feels far better than relative humidity does. A low dew point feels dry and crisp; a high one feels sticky and oppressive no matter the reading on a humidity gauge.

Tena is humid all year round — on a typical day the air feels at least humid, and there is no real dry season to wait for.

The stickiest month is January, when it feels muggy, oppressive or miserable about 95% of the time. Even in January, the mildest month, the air is dry or comfortable only 0% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecmuggyhumid
Humid (%)Muggy (%)Oppressive (%)
Jan5923
Feb6886
Mar1927
Apr2926
May3944
Jun8911
Jul25750
Aug28720
Sep9910
Oct2971
Nov0955
Dec1963

Wind

Average wind speed through the year, banded into plain-language speed zones so a number reads as 'breezy' or 'calm' without knowing the scale.

This is the average sustained wind speed at the standard 10 metres above open ground — the steady flow a weather station reports, not the sharper gusts that come and go, which can run half again as fast. It's the number that says whether a place is generally breezy or calm.

Wind in Tena is steady company: average speeds sit near 3 km/hcalm — in every month of the year, with no meaningful windy or calm season.

0510JanFebMarAprMayJunJulAugSepOctNovDeccalmSep 17 · 3 km/hMar 29 · 3 km/h
Wind speed (km/h)Feels
Jan3calm
Feb3calm
Mar3calm
Apr3calm
May3calm
Jun3calm
Jul3calm
Aug3calm
Sep3calm
Oct3calm
Nov3calm
Dec3calm

Best time to visit Tena

TravelBeach/poolTemperatureCloudsPrecipitation

To characterize how pleasant the weather is in Tena throughout the year, we compute two travel scores — one for general sightseeing, one for beach and pool weather.

Around late December, Tena is still near the tail of its best-weather window — great conditions with the peak-season crowds already thinning.

Inferred from the travel-score curve; month-by-month visitor numbers are a planned addition.

The travel score favors clear, rainless days with daytime highs between 18°C and 28°C. In Tena it holds close to 4.5 all year, so any month is about as good as another for general outdoor tourist activities.

0246810JanFebMarAprMayJunJulAugSepOctNovDectravel scoretemperaturecloudsprecipitation

The travel score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

Travel score (0–10)Rating
Jan4.2fair
Feb3.9fair
Mar3.5fair
Apr3.6fair
May3.7fair
Jun3.8fair
Jul4.1fair
Aug4.4fair
Sep4.2fair
Oct3.9fair
Nov3.6fair
Dec3.9fair

The beach/pool score favors clear, rainless days with daytime highs between 24°C and 34°C. In Tena it holds close to 4.3 all year, so any month is about as good as another for hot-weather activities.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbeach/pool scoretemperaturecloudsprecipitation

The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

What to pack for Tena, by month

EssentialRecommendedOptional

Month by month, what's worth putting in the bag — from the temperature range, rain chance, sun and wind. Tap a month for a quick packing note.

Tena packs about the same all year — highs hold near 27°C. Across the year the things worth having are light clothes, rain gear and sun protection.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In October, Tena sees daytime highs around 27°C and nights near 19°C. Pack light clothes and rain gear. Worth having: sun protection. About 27 days see rain.

UV index (midday) in Tena by month

LowModerateHighVery highExtreme

Clear-sky midday UV index through the year, shaded by the WHO exposure levels — how much sun protection each month calls for.

Under clear skies, the midday UV index in Tena peaks around February 20 at about 18 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near August 10 at about 12 (extreme).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeFeb 20UV 18Aug 10UV 12
UV index (midday)Level
Jan16Extreme
Feb18Extreme
Mar17Extreme
Apr14Extreme
May15Extreme
Jun13Extreme
Jul13Extreme
Aug12Extreme
Sep14Extreme
Oct15Extreme
Nov12Extreme
Dec14Extreme

Average hourly UV index in Tena

LowModerateHighVery highExtreme

Modeled clear-sky UV for every hour of every day — when in the day sun protection actually matters.

The whole year hour by hour: each column is a day, each row an hour, and the color is the modeled clear-sky UV index — the midday peak scaled down as the sun sits lower in the sky. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.

UV falls off far faster than brightness as the sun drops, so even in February the burn window is concentrated in the middle of the day: about 8.5 hours a day reach index 3 (protection recommended), and 7 hours reach 6 or more. Mornings and late afternoons stay comparatively gentle year round.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM
UV ≥ 3 (h/day)UV ≥ 6 (h/day)
Jan8.57
Feb8.57
Mar8.57
Apr86.5
May86.5
Jun86
Jul86
Aug86
Sep86.5
Oct8.56.5
Nov86
Dec86.5

Air quality in Tena by month

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see which months the air is worst, not just the yearly average.

Air quality in Tena is worst in February — around 15 µg/m³ PM2.5 (moderate), about 2.4× the cleanest month (July, 6 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateGoodFeb 2115 µg/m³Jul 147 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb15Moderate
Mar15Moderate
Apr12Good
May9Good
Jun7Good
Jul6Good
Aug8Good
Sep11Good
Oct11Good
Nov14Moderate
Dec11Good
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Tena is frost-free year round — even the coldest nights rarely reach freezing, so there is no start or end to the growing season.

0%25%50%75%100%JanFebMarAprMayJunJulAugSepOctNovDecfrost-free year round
Frost-free chance (%)Frost nights
Jan1000
Feb1000
Mar1000
Apr1000
May1000
Jun1000
Jul1000
Aug1000
Sep1000
Oct1000
Nov1000
Dec1000

Growing degree days

Degree days (base 10°C)Frost-free shaded

Growing degree days tally heat above 10°C: each day adds however many degrees its average temperature runs over that threshold, and cold days add nothing. Tena banks about 4,612 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around February.

01,0002,0003,0004,0005,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan403
Feb368
Mar406
Apr392
May393
Jun356
Jul355
Aug367
Sep376
Oct403
Nov391
Dec403

Solar energy

Average daily shortwave solar energy reaching the ground, banded into brightness zones so the number means something at a glance.

Solar energy is how much sunlight actually reaches the ground each day, measured in kilowatt-hours per square metre (kWh/m²) — the combined effect of how long the sun is up, how high it climbs, and how much cloud gets in the way. It's the raw fuel a solar panel has to work with: for scale, 1 kWh/m² a day is dim and wintry, while 7+ is desert-bright.

Tena receives about 4.6 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 3.7 and 5.4 kWh/m².

The brighter stretch of the year lasts 7.2 months, from around Aug 12 to Mar 19. The brightest month is September, averaging about 5.3 kWh/m² (bright).

The dimmest month is June, down near 3.8 kWh/m² — roughly 29% less than the September peak.

0123456JanFebMarAprMayJunJulAugSepOctNovDecbrighterdimmerbrighterdimmoderatebrightSep 245.4 kWhJun 243.7 kWh
Solar energy (kWh/m²)Level
Jan4.8Bright
Feb4.8Bright
Mar4.5Bright
Apr4.4Bright
May4.2Bright
Jun3.7Moderate
Jul3.9Moderate
Aug4.8Bright
Sep5.3Bright
Oct5.2Bright
Nov4.8Bright
Dec4.6Bright

Where is Tena?

Tena sits at 1.0°S, 77.8°W, 610 m above sea level, in Ecuador. The nearest listed city is Puyo, 59 km away.

Topography around Tena

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Tena.

Within 3 km, the terrain around Tena has only modest variations in elevation — a maximum elevation change of 223 m around an average of 557 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,818 m; within 80 km, extreme variations in elevation — a maximum elevation change of 5,586 m.

The land around Tena is covered by trees (79%) within 3 km, trees (96%) within 16 km, and trees (85%) within 80 km.

3 km
223 m
16 km
1,818 m
80 km
5,586 m
treesshrubsgrasslandartificial surfaceswater
Nearby: Puyo 59 km · Banos 81 km · Boca Suno 82 km · Latacunga 89 km · Pelileo 89 km · Ambato 94 km · Pujilí 98 km · Machachi 100 km

Ecuador travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 43% of US
price level, 2025
GDP per capita
$7,125
2025
Happiness
6.1 / 10
World Happiness, 2025
Safe drinking water
70%
of population, 2024
Homicide rate
45.7
per 100k, 2023
Road deaths
20.1
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Low
EF EPI 466
Religion
Roman Catholic 68%Protestant 19%none 8%other 2%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Tena (-0.9961°, -77.8131°, elevation 610 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).