Climate and average weather in Masagua

In Masagua, the weather is hot, wet, and mostly clear and remarkably steady, with daytime highs holding near hot levels all year. The wettest stretch peaks around September.

Best: early January to mid March

Over the course of the year, the temperature in Masagua typically varies from 18°C to 30°C, and is rarely below 16°C or above 32°C. March is the hottest month of the year, while October is the coldest.

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

Hottest
Mar
30°
Coldest
Oct
20°
Wettest
Sep
421 mm
Driest
Feb
9 mm
Rain / yr
2478 mm
233 wet days
Daylight
11.2–12.8 h
shortest–longest
Elevation
118 m
14.2°N
Clearest
Jan
22% cloud

Masagua 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 mid March.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

Temperatures in Masagua stay fairly even through the year, without a distinct hot or cool season. The warmest month is March, with an average high of 30°C and low of 19°C; the coolest is October, with an average low of 20°C and high of 27°C.

Days typically run about 9°C warmer than nights, with the widest day–night swing (around 11°C) in February.

15°20°25°30°35°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan2918
Feb3018
Mar3019
Apr3020
May2820
Jun2820
Jul2820
Aug2820
Sep2720
Oct2720
Nov2819
Dec2818

Average hourly temperature in Masagua

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 30°C, and coldest before dawn in October, near 20°C.

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

Masagua 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
Jan29° / 18°103.111.37.1
Feb30° / 18°92.711.56.6
Mar30° / 19°297.711.95.7
Apr30° / 20°8617.212.34.5
May28° / 20°29927.812.63.5
Jun28° / 20°36028.812.83.3
Jul28° / 20°32030.212.83.2
Aug28° / 20°35830.412.53.3
Sep27° / 20°42129.512.13.3
Oct27° / 20°41328.811.73.6
Nov28° / 19°14619.211.35.2
Dec28° / 18°277.411.26.8

Chance of rain

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

Masagua gets about 2478 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 6.9 months, from around Apr 22 to Nov 16, peaking in September at about 99% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Feb 8.

September is the wettest month by volume, with 421 mm over about 30 wet days; February is the driest, with 9 mm.

0%10%20%30%40%50%60%70%80%90%100%110%JanFebMarAprMayJunJulAugSepOctNovDecdrierwetterdriermostly drysome rainoften wetvery wetSep 25 · 99%Feb 8 · 8%
Rain on a day (%)Rain days
Jan103
Feb103
Mar268
Apr5717
May8828
Jun9629
Jul9730
Aug9830
Sep9830
Oct9329
Nov6319
Dec257

Monthly rainfall

Over a full year, Masagua collects about 2478 mm of rain across 233 wet days — roughly 206 mm in an average month.

It doesn’t fall evenly. September is the wettest month with 421 mm, while February is the driest at just 9 mm. The three wettest months alone bring about 48% of the year’s total.

050100150200250300350400450500JanFebMarAprMayJunJulAugSepOctNovDec109298629936032035842141314627
Rainfall (mm)Rain days
Jan103
Feb93
Mar298
Apr8617
May29928
Jun36029
Jul32030
Aug35830
Sep42130
Oct41329
Nov14619
Dec277

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

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

The clearer part of the year begins around November 5 and lasts for 5.7 months, ending around April 28. The clearest month is January, when the sky is clear, mostly clear, or partly cloudy 93% of the time on average.

The cloudier part of the year begins around April 29 and lasts for 6.2 months, ending around November 4. The cloudiest month is September, 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%JanFebMarAprMayJunJulAugSepOctNovDecJan 18 · 94%Sep 18 · 6%clearmostly clearpartly cloudymostly cloudyovercastclearercloudierclearer
Clearer (%)Cloudier (%)
Jan937
Feb937
Mar8614
Apr6634
May2476
Jun1090
Jul1585
Aug1387
Sep793
Oct2179
Nov6436
Dec8911

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. The longest day, around May 28, brings about 12 h 48 min of light; the shortest, around January 1, only 11 h 12 min — a swing of roughly 1 h 36 min.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan11.36:355:50
Feb11.56:326:04
Mar11.96:166:10
Apr12.35:546:13
May12.65:406:19
Jun12.85:396:29
Jul12.85:466:32
Aug12.55:536:22
Sep12.15:556:00
Oct11.75:585:39
Nov11.36:095:29
Dec11.26:255:35

Sunny days

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

Masagua averages about 10 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 0 and 26 days.

The sunnier stretch runs 5.3 months, from around Nov 9 to Apr 17. The sunniest month is February, with roughly 25 sunny days (brilliant).

The greyest month is September, down near 0 sunny days — about 99% fewer than the February peak.

051015202530JanFebMarAprMayJunJulAugSepOctNovDecsunniergreyersunniergloomymixedbrightbrilliantFeb 126 daysSep 180 days
Sunny daysSky
Jan26Brilliant
Feb23Brilliant
Mar21Bright
Apr11Mixed
May3Gloomy
Jun1Gloomy
Jul1Gloomy
Aug1Gloomy
Sep0Gloomy
Oct3Gloomy
Nov13Mixed
Dec23Brilliant

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.

In Masagua, how humid it feels changes dramatically over the year.

The more humid part of the year lasts 7.9 months, from around March 30 to November 25. The muggiest month is June, when the air feels humid, muggy or worse about 100% of the time.

The most comfortable stretch runs from around November 26 to March 29, and January is the most comfortable month — the air is dry or comfortable 33% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecJan 17 · 36%Jun 2 · 0%oppressivehumidmuggycomfortablecomfortablehumidcomfortable
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
Jan7265980
Feb52658110
Mar31645360
Apr12196810
May0125641
Jun0005842
Jul0007822
Aug0007525
Sep0007129
Oct0147421
Nov1522675
Dec21354310

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 Masagua is steady company: average speeds sit near 5 km/hcalm — in every month of the year, with no meaningful windy or calm season.

0510JanFebMarAprMayJunJulAugSepOctNovDeccalmJan 12 · 6 km/hJun 3 · 4 km/h
Wind speed (km/h)Feels
Jan6calm
Feb6calm
Mar6calm
Apr5calm
May4calm
Jun4calm
Jul4calm
Aug4calm
Sep4calm
Oct4calm
Nov5calm
Dec6calm

Hazard calendar for Masagua

In seasonPeak

When the seasonal hazards worth planning around — the rainy season, tropical-cyclone risk and dust haze — are active through the year.

Masagua sits in the Atlantic hurricane belt; the season peaks August–October.

Masagua's monsoon runs May–October, when most of the year's rain falls.

Atlantic hurricane
Monsoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Best time to visit Masagua

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around early March, Masagua 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. Based on this score, the best time of year to visit Masagua for general outdoor tourist activities is from late November to mid March, with a peak score in the second week of January.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timetravel scoretemperaturecloudsprecipitationJan 12 · 7.1

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
Jan7.1good
Feb6.6good
Mar5.7good
Apr4.5fair
May3.5poor
Jun3.3poor
Jul3.1poor
Aug3.3poor
Sep3.3poor
Oct3.6fair
Nov5.2fair
Dec6.8good

The beach/pool score favors clear, rainless days with daytime highs between 24°C and 34°C. Based on this score, the best time of year to visit Masagua for hot-weather activities is from early December to late March, with a peak score in the first week of February.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timebeach/pool scoretemperaturecloudsprecipitationFeb 1 · 8.9

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 Masagua, 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.

Masagua packs about the same all year — highs hold near 30°C. Across the year the things worth having are light clothes, sun protection and rain gear.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In March, Masagua sees daytime highs around 30°C and nights near 19°C. Pack light clothes and sun protection. About 8 days see rain.

Sea temperature near Masagua

Average ocean temperature at the nearest coast, month by month, banded into swim-comfort zones — the other half of the beach question.

The sea at the nearest coast (about 37 km away) is warmest in August at about 30°C and coldest in January near 28°C.

The water stays above 20°C all year — warm enough for a swim any month.

26°28°30°32°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan28Tropical
Feb28Tropical
Mar29Tropical
Apr30Tropical
May30Tropical
Jun30Tropical
Jul30Tropical
Aug30Tropical
Sep30Tropical
Oct29Tropical
Nov29Tropical
Dec29Tropical

UV index (midday) in Masagua 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 Masagua peaks around April 14 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 21 at about 8 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highApr 14UV 13Nov 21UV 8
UV index (midday)Level
Jan9Very high
Feb13Extreme
Mar12Extreme
Apr13Extreme
May12Extreme
Jun12Extreme
Jul12Extreme
Aug12Extreme
Sep10Extreme
Oct11Extreme
Nov8Very high
Dec9Very high

Average hourly UV index in Masagua

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 April the burn window is concentrated in the middle of the day: about 8 hours a day reach index 3 (protection recommended), and 6.5 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)
Jan74.5
Feb7.56
Mar86
Apr86.5
May8.56
Jun8.56
Jul86
Aug86
Sep7.55.5
Oct7.55.5
Nov6.54
Dec74.5

Air quality in Masagua 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 Masagua is worst in April — around 47 µg/m³ PM2.5 (poor), and holds fairly steady the rest of the year.

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModeratePoorApr 2046 µg/m³Jul 2030 µg/m³
PM2.5 (µg/m³)Level
Jan33Moderate
Feb34Moderate
Mar37Poor
Apr47Poor
May44Poor
Jun31Moderate
Jul30Moderate
Aug30Moderate
Sep33Moderate
Oct37Poor
Nov40Poor
Dec37Poor
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Masagua 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. Masagua banks about 5,019 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around April.

02,0004,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan410
Feb386
Mar445
Apr439
May445
Jun419
Jul429
Aug427
Sep407
Oct415
Nov394
Dec402

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.

Masagua receives about 5.5 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 4.6 and 6.4 kWh/m².

The brighter stretch of the year lasts 4.0 months, from around Jan 17 to May 17. The brightest month is March, averaging about 6.3 kWh/m² (intense).

The dimmest month is October, down near 4.8 kWh/m² — roughly 25% less than the March peak.

01234567JanFebMarAprMayJunJulAugSepOctNovDecbrighterdimmerdimmoderatebrightintenseMar 176.4 kWhOct 44.6 kWh
Solar energy (kWh/m²)Level
Jan5.5Bright
Feb6.0Intense
Mar6.3Intense
Apr6.3Intense
May5.6Bright
Jun5.2Bright
Jul5.8Bright
Aug5.6Bright
Sep4.9Bright
Oct4.8Bright
Nov5.1Bright
Dec5.3Bright

Where is Masagua?

Masagua sits at 14.2°N, 90.8°W, 118 m above sea level, in Guatemala. The nearest listed city is Escuintla, 13 km away.

La GomeraPalínPuerto San JoséAlotenangoYepocapaSanta María de Jesús

Topography around Masagua

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

Within 3 km, the terrain around Masagua has only modest variations in elevation — a maximum elevation change of 75 m around an average of 112 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 950 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,945 m.

The land around Masagua is covered by cropland (35%), trees (33%) and grassland (28%) within 3 km, trees (39%), grassland (31%) and cropland (26%) within 16 km, and trees (46%) and water (23%) within 80 km.

3 km
75 m
16 km
950 m
80 km
3,945 m
treesgrasslandcroplandartificial surfacesbare terrainwatermangroves
Nearby: Escuintla 13 km · Santa Lucía Cotzumalguapa 24 km · La Gomera 26 km · Palín 28 km · Puerto San José 31 km · Alotenango 32 km · Yepocapa 35 km · Santa María de Jesús 36 km

Guatemala travel facts

Travel advisory
Level 3
Reconsider Travel
Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 43% of US
price level, 2025
GDP per capita
$6,598
2025
Happiness
6.5 / 10
World Happiness, 2025
Safe drinking water
49%
of population, 2024
Homicide rate
23.4
per 100k, 2023
Road deaths
22.9
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Moderate
EF EPI 510
Religion
Evangelical 46%Roman Catholic 42%none 11%

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 Masagua (14.2031°, -90.8481°, elevation 118 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).