Climate and average weather in Montalvo

In Montalvo, 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 January.

Best: early January to late December

Over the course of the year, the temperature in Montalvo typically varies from 17°C to 25°C, and is rarely below 16°C or above 27°C. March is the hottest month of the year, while August is the coldest.

Based on the travel score, the best time of year to visit Montalvo for warm-weather activities is from early January to late December.

Hottest
Mar
25°
Coldest
Aug
17°
Wettest
Jan
1107 mm
Driest
Nov
384 mm
Rain / yr
9524 mm
353 wet days
Daylight
11.9–12.1 h
shortest–longest
Elevation
65 m
1.8°S
Clearest
Aug
83% cloud

Montalvo is Town and urban parish of Los Ríos Province, Ecuador.

Founded
1906

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

Montalvo 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 early January to late December.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

Temperatures in Montalvo stay fairly even through the year, without a distinct hot or cool season. The warmest month is March, with an average high of 25°C and low of 19°C; the coolest is August, with an average low of 17°C and high of 23°C.

Days typically run about 6°C warmer than nights year-round.

15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan2419
Feb2519
Mar2519
Apr2519
May2519
Jun2418
Jul2317
Aug2317
Sep2317
Oct2418
Nov2418
Dec2419

Average hourly temperature in Montalvo

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 March afternoons, near 25°C, and coldest before dawn in August, near 17°C.

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

Montalvo 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
Jan24° / 19°110730.612.13.5
Feb25° / 19°10622812.13.4
Mar25° / 19°110730.7123.4
Apr25° / 19°110129.4123.4
May25° / 19°107830.611.93.5
Jun24° / 18°73929.811.93.5
Jul23° / 17°65630.511.93.5
Aug23° / 17°50630.411.93.6
Sep23° / 17°58629.6123.5
Oct24° / 18°47028.2123.8
Nov24° / 18°38425.912.14.0
Dec24° / 19°73029.412.13.7

Chance of rain

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

Montalvo gets about 9524 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 9.4 months, from around Dec 21 to Oct 2, peaking in February at about 100% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Nov 20.

January is the wettest month by volume, with 1107 mm over about 31 wet days; November is the driest, with 384 mm.

0%10%20%30%40%50%60%70%80%90%100%110%JanFebMarAprMayJunJulAugSepOctNovDecwetterdriermostly drysome rainoften wetvery wetFeb 2 · 100%Nov 20 · 86%
Rain on a day (%)Rain days
Jan9931
Feb10028
Mar9931
Apr9829
May9931
Jun9930
Jul9931
Aug9830
Sep9830
Oct9128
Nov8726
Dec9429

Monthly rainfall

Over a full year, Montalvo collects about 9524 mm of rain across 353 wet days — roughly 794 mm in an average month.

It doesn’t fall evenly. January is the wettest month with 1107 mm, while November is the driest at just 384 mm. The three wettest months alone bring about 35% of the year’s total.

050100150200250300350400450500550600650700750800850900950100010501100115012001250JanFebMarAprMayJunJulAugSepOctNovDec11071062110711011078739656506586470384730
Rainfall (mm)Rain days
Jan110731
Feb106228
Mar110731
Apr110129
May107831
Jun73930
Jul65631
Aug50630
Sep58630
Oct47028
Nov38426
Dec73029

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

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

The clearer part of the year begins around June 11 and lasts for 3.3 months, ending around September 19. The clearest month is August, when the sky is clear, mostly clear, or partly cloudy 9% of the time on average.

The cloudier part of the year begins around September 20 and lasts for 8.7 months, ending around June 10. The cloudiest month is February, when it is overcast or mostly cloudy 100% 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%JanFebMarAprMayJunJulAugSepOctNovDecAug 3 · 12%Feb 1 · 0%partly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan199
Feb0100
Mar0100
Apr0100
May199
Jun496
Jul892
Aug991
Sep496
Oct199
Nov298
Dec298

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, Montalvo 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)
Jan12.16:246:29
Feb12.16:306:33
Mar12.06:266:27
Apr12.06:196:16
May11.96:166:11
Jun11.96:206:14
Jul11.96:266:20
Aug11.96:236:19
Sep12.06:126:11
Oct12.06:016:03
Nov12.16:006:05
Dec12.16:106:16

Sunny days

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

Montalvo gets about 0 sunny days a month gloomy — and it barely shifts through the year, holding between 0 and 0 days every month. Clear skies here are a flat line, not a season.

05JanFebMarAprMayJunJulAugSepOctNovDecgloomyAug 70 daysJan 10 days
Sunny daysSky
Jan0Gloomy
Feb0Gloomy
Mar0Gloomy
Apr0Gloomy
May0Gloomy
Jun0Gloomy
Jul0Gloomy
Aug0Gloomy
Sep0Gloomy
Oct0Gloomy
Nov0Gloomy
Dec0Gloomy

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.

Montalvo 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 90% 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 (%)
Jan10891
Feb6931
Mar3961
Apr1981
May4951
Jun23770
Jul54460
Aug67330
Sep54460
Oct38620
Nov31690
Dec15840

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 Montalvo is steady company: average speeds sit near 4 km/hcalm — in every month of the year, with no meaningful windy or calm season.

0510JanFebMarAprMayJunJulAugSepOctNovDeccalmAug 11 · 4 km/hMay 22 · 4 km/h
Wind speed (km/h)Feels
Jan4calm
Feb4calm
Mar4calm
Apr4calm
May4calm
Jun4calm
Jul4calm
Aug4calm
Sep4calm
Oct4calm
Nov4calm
Dec4calm

Best time to visit Montalvo

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around mid January, Montalvo is still near the start of its best-weather window — great conditions with the peak-season crowds not yet at full swing.

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 Montalvo it holds close to 4.0 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
Jan3.5poor
Feb3.4poor
Mar3.4poor
Apr3.4poor
May3.5poor
Jun3.5fair
Jul3.5fair
Aug3.6fair
Sep3.5fair
Oct3.8fair
Nov4.0fair
Dec3.7fair

The beach/pool score favors clear, rainless days with daytime highs between 24°C and 34°C. In Montalvo it holds close to 3.4 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 Montalvo, 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.

Montalvo packs about the same all year — highs hold near 25°C. Across the year the things worth having are light clothes and rain gear.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In March, Montalvo sees daytime highs around 25°C and nights near 19°C. Pack rain gear. Worth having: light clothes. About 31 days see rain.

UV index (midday) in Montalvo 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 Montalvo peaks around March 10 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 19 at about 11 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 10UV 16Jul 19UV 11
UV index (midday)Level
Jan15Extreme
Feb16Extreme
Mar16Extreme
Apr14Extreme
May14Extreme
Jun12Extreme
Jul11Extreme
Aug11Extreme
Sep12Extreme
Oct14Extreme
Nov12Extreme
Dec12Extreme

Average hourly UV index in Montalvo

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 March 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)
Jan8.56.5
Feb8.57
Mar8.57
Apr86.5
May86.5
Jun86
Jul7.55.5
Aug7.55.5
Sep86
Oct86.5
Nov86
Dec86

Air quality in Montalvo 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 Montalvo is worst in November — around 47 µg/m³ PM2.5 (poor), about 2.4× the cleanest month (January, 20 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorNov 1745 µg/m³Jan 2420 µg/m³
PM2.5 (µg/m³)Level
Jan20Moderate
Feb20Moderate
Mar22Moderate
Apr23Moderate
May21Moderate
Jun21Moderate
Jul21Moderate
Aug21Moderate
Sep23Moderate
Oct27Moderate
Nov47Poor
Dec30Moderate
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Montalvo 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. Montalvo banks about 4,047 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around April.

01,0002,0003,0004,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan354
Feb330
Mar376
Apr365
May366
Jun325
Jul314
Aug307
Sep307
Oct329
Nov326
Dec349

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.

Montalvo receives about 3.8 kWh/m² a day of solar energy — moderate — and it stays remarkably steady, holding between 3.5 and 4.3 kWh/m² all year. For solar panels, output here is a flat line, not a seasonal wave.

012345JanFebMarAprMayJunJulAugSepOctNovDecdimmoderatebrightSep 94.3 kWhJun 13.5 kWh
Solar energy (kWh/m²)Level
Jan3.6Moderate
Feb3.7Moderate
Mar3.9Moderate
Apr3.8Moderate
May3.5Moderate
Jun3.5Moderate
Jul3.7Moderate
Aug4.1Bright
Sep4.2Bright
Oct4.1Bright
Nov4.1Bright
Dec3.8Moderate

Where is Montalvo?

Montalvo sits at 1.8°S, 79.3°W, 65 m above sea level, in Ecuador. The nearest listed city is Babahoyo, 26 km away.

Topography around Montalvo

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

Within 3 km, the terrain around Montalvo has only modest variations in elevation — a maximum elevation change of 155 m around an average of 75 m above sea level; within 16 km, extreme variations in elevation — a maximum elevation change of 2,468 m; within 80 km, extreme variations in elevation — a maximum elevation change of 6,245 m.

The land around Montalvo is covered by trees (69%) within 3 km, trees (60%) and grassland (22%) within 16 km, and trees (38%) and grassland (34%) within 80 km.

3 km
155 m
16 km
2,468 m
80 km
6,245 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetland
Nearby: Babahoyo 26 km · Guaranda 39 km · Ventanas 43 km · Naranjito 47 km · Milagro 51 km · Samborondón 52 km · Yaguachi Nuevo 57 km · Vinces 58 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 Montalvo (-1.7901°, -79.2876°, elevation 65 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).