Climate and average weather in Chimaltenango

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

Best: mid November to mid April

Over the course of the year, the temperature in Chimaltenango typically varies from 11°C to 26°C, and is rarely below 9°C or above 29°C. April is the hottest month of the year, while November is the coldest.

Based on the travel score, the best time of year to visit Chimaltenango for warm-weather activities is from mid November to mid April.

Hottest
Apr
26°
Coldest
Nov
13°
Wettest
Jun
221 mm
Driest
Feb
5 mm
Rain / yr
1092 mm
146 wet days
Daylight
11.1–12.9 h
shortest–longest
Elevation
1,795 m
14.7°N
Clearest
Feb
35% cloud

Chimaltenango is department in Guatemala.

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

Chimaltenango 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 November to mid April.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

Temperatures in Chimaltenango stay fairly even through the year, without a distinct hot or cool season. The warmest month is April, with an average high of 26°C and low of 14°C; the coolest is November, with an average low of 13°C and high of 22°C.

Days typically run about 11°C warmer than nights, with the widest day–night swing (around 13°C) in March.

10°15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan2311
Feb2412
Mar2613
Apr2614
May2515
Jun2415
Jul2414
Aug2414
Sep2415
Oct2314
Nov2213
Dec2312

Average hourly temperature in Chimaltenango

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 April afternoons, near 26°C, and coldest before dawn in November, near 13°C.

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

Chimaltenango 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
Jan23° / 11°61.811.28.5
Feb24° / 12°51.311.58.7
Mar26° / 13°153.811.98.0
Apr26° / 14°517.912.37.0
May25° / 15°13317.712.75.4
Jun24° / 15°22123.912.94.5
Jul24° / 14°11617.312.85.5
Aug24° / 14°13619.112.55.3
Sep24° / 15°20424.112.14.4
Oct23° / 14°1521911.75.2
Nov22° / 13°417.111.37.1
Dec23° / 12°132.811.18.1

Chance of rain

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

Chimaltenango gets about 1092 mm of precipitation a year. On a typical day the chance of rain is often wet, but that rises and falls sharply with the seasons.

The wetter season lasts 5.9 months, from around May 4 to Oct 29, peaking in September at about 81% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Feb 15.

June is the wettest month by volume, with 221 mm over about 24 wet days; February is the driest, with 5 mm.

0%10%20%30%40%50%60%70%80%90%JanFebMarAprMayJunJulAugSepOctNovDecdrierwetterdriermostly drysome rainoften wetvery wetSep 24 · 81%Feb 15 · 4%
Rain on a day (%)Rain days
Jan62
Feb51
Mar124
Apr268
May5718
Jun7824
Jul5717
Aug6219
Sep7924
Oct6219
Nov247
Dec93

Monthly rainfall

Over a full year, Chimaltenango collects about 1092 mm of rain across 146 wet days — roughly 91 mm in an average month.

It doesn’t fall evenly. June is the wettest month with 221 mm, while February is the driest at just 5 mm. The three wettest months alone bring about 53% of the year’s total.

050100150200250JanFebMarAprMayJunJulAugSepOctNovDec6515511332211161362041524113
Rainfall (mm)Rain days
Jan62
Feb51
Mar154
Apr518
May13318
Jun22124
Jul11617
Aug13619
Sep20424
Oct15219
Nov417
Dec133

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Chimaltenango, 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 7 and lasts for 5.6 months, ending around April 24. The clearest month is February, when the sky is clear, mostly clear, or partly cloudy 82% of the time on average.

The cloudier part of the year begins around April 25 and lasts for 6.4 months, ending around November 6. The cloudiest month is June, when it is overcast or mostly cloudy 89% 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%JanFebMarAprMayJunJulAugSepOctNovDecFeb 13 · 82%Jun 5 · 11%clearmostly clearpartly cloudymostly cloudyovercastclearercloudierclearer
Clearer (%)Cloudier (%)
Jan7822
Feb8218
Mar7525
Apr5545
May2080
Jun1189
Jul2278
Aug2179
Sep1486
Oct2377
Nov5248
Dec7327

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 June 12, brings about 12 h 54 min of light; the shortest, around January 1, only 11 h 06 min — a swing of roughly 1 h 48 min.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan11.26:365:49
Feb11.56:326:03
Mar11.96:166:10
Apr12.35:546:13
May12.75:396:20
Jun12.95:386:29
Jul12.85:456:33
Aug12.55:536:22
Sep12.15:556:00
Oct11.75:585:38
Nov11.36:095:28
Dec11.16:255:34

Sunny days

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

Chimaltenango averages about 7 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 1 and 18 days.

The sunnier stretch runs 5.1 months, from around Nov 16 to Apr 20. The sunniest month is February, with roughly 17 sunny days (bright).

The greyest month is September, down near 1 sunny days — about 94% fewer than the February peak.

05101520JanFebMarAprMayJunJulAugSepOctNovDecsunniergreyersunniergloomymixedbrightFeb 518 daysSep 221 days
Sunny daysSky
Jan16Bright
Feb16Bright
Mar15Bright
Apr8Mixed
May3Gloomy
Jun1Gloomy
Jul3Gloomy
Aug2Gloomy
Sep1Gloomy
Oct3Gloomy
Nov7Gloomy
Dec14Mixed

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 Chimaltenango, how humid it feels changes dramatically over the year.

The more humid part of the year lasts 2.3 months, from around May 1 to July 9. The muggiest month is June, when the air feels humid, muggy or worse about 29% of the time.

The most comfortable stretch runs from around October 31 to April 30, and January is the most comfortable month — the air is dry or comfortable 100% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecJan 5 · 100%Jun 8 · 66%humiddrycomfortablecomfortablehumidcomfortable
Dry (%)Comfortable (%)Humid (%)
Jan9550
Feb9460
Mar82180
Apr55424
May246017
Jun86329
Jul20729
Aug167410
Sep57123
Oct156520
Nov53443
Dec82180

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.

Across the year, average wind speed in Chimaltenango is typically calm, near 7 km/h, and varies little with the seasons.

The windier part of the year lasts 5.6 months, from around Oct 28 to Apr 15. The windiest month is January, averaging about 8 km/h (calm).

The calmer part of the year runs from around Apr 16 to Jul 7, with June the calmest month at about 6 km/h.

051015JanFebMarAprMayJunJulAugSepOctNovDecwindiercalmerwindiercalmlight breezeJan 9 · 8 km/hJun 4 · 5 km/h
Wind speed (km/h)Feels
Jan8calm
Feb8calm
Mar8calm
Apr7calm
May6calm
Jun6calm
Jul7calm
Aug6calm
Sep5calm
Oct6calm
Nov8calm
Dec8calm

Hazard calendar for Chimaltenango

In seasonPeak

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

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

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

Best time to visit Chimaltenango

TravelBeach/poolTemperatureCloudsPrecipitation

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

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

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timetravel scoretemperaturecloudsprecipitationFeb 10 · 8.8

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
Jan8.5ideal
Feb8.7ideal
Mar8.0ideal
Apr7.0good
May5.4fair
Jun4.5fair
Jul5.5fair
Aug5.3fair
Sep4.5fair
Oct5.2fair
Nov7.1good
Dec8.1ideal

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 Chimaltenango for hot-weather activities is from mid January to late April, with a peak score in the last week of February.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationFeb 24 · 7.8

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 Chimaltenango, 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.

Chimaltenango packs about the same all year — highs hold near 26°C. Across the year the things worth having are light clothes and sun protection.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In April, Chimaltenango sees daytime highs around 26°C and nights near 14°C. Pack sun protection. Worth having: light clothes. About 8 days see rain.

UV index (midday) in Chimaltenango 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 Chimaltenango peaks around April 13 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 13 at about 9 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highApr 13UV 15Dec 13UV 9
UV index (midday)Level
Jan10Extreme
Feb14Extreme
Mar14Extreme
Apr15Extreme
May13Extreme
Jun13Extreme
Jul13Extreme
Aug13Extreme
Sep13Extreme
Oct12Extreme
Nov10Very high
Dec9Very high

Average hourly UV index in Chimaltenango

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 8.5 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)
Jan75
Feb86
Mar86.5
Apr8.56.5
May8.56.5
Jun8.56.5
Jul8.56.5
Aug86.5
Sep86
Oct7.55.5
Nov75
Dec74.5

Air quality in Chimaltenango 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 Chimaltenango is worst in April — around 48 µg/m³ PM2.5 (poor), about 2.2× the cleanest month (August, 22 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateApr 1846 µg/m³Aug 1422 µg/m³
PM2.5 (µg/m³)Level
Jan26Moderate
Feb26Moderate
Mar31Moderate
Apr48Poor
May37Poor
Jun25Moderate
Jul23Moderate
Aug22Moderate
Sep24Moderate
Oct23Moderate
Nov22Moderate
Dec24Moderate
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Chimaltenango 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. Chimaltenango banks about 3,190 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around April.

01,0002,0003,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan220
Feb227
Mar284
Apr302
May311
Jun281
Jul281
Aug290
Sep277
Oct266
Nov229
Dec221

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.

Chimaltenango receives about 5.3 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 4.5 and 6.2 kWh/m².

The brighter stretch of the year lasts 3.6 months, from around Feb 1 to May 22. The brightest month is April, averaging about 6.2 kWh/m² (intense).

The dimmest month is October, down near 4.5 kWh/m² — roughly 27% less than the April peak.

01234567JanFebMarAprMayJunJulAugSepOctNovDecdimmerbrighterdimmerdimmoderatebrightintenseApr 16.2 kWhOct 154.5 kWh
Solar energy (kWh/m²)Level
Jan5.0Bright
Feb5.7Bright
Mar6.2Intense
Apr6.2Intense
May5.5Bright
Jun5.1Bright
Jul5.6Bright
Aug5.6Bright
Sep4.9Bright
Oct4.5Bright
Nov4.6Bright
Dec4.7Bright

Where is Chimaltenango?

Chimaltenango sits at 14.7°N, 90.8°W, 1,795 m above sea level, in Guatemala. The nearest listed city is El Tejar, 4.0 km away.

Topography around Chimaltenango

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

Within 3 km, the terrain around Chimaltenango has significant variations in elevation — a maximum elevation change of 346 m around an average of 1,798 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,986 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,944 m.

The land around Chimaltenango is covered by cropland (32%), trees (31%) and artificial surfaces (30%) within 3 km, trees (63%) and cropland (21%) within 16 km, and trees (65%) within 80 km.

3 km
346 m
16 km
1,986 m
80 km
3,944 m
treesshrubsgrasslandcroplandartificial surfaceswater
Nearby: El Tejar 4.0 km · San Andrés Itzapa 5.0 km · Zaragoza 7.0 km · Sumpango 9.0 km · Comalapa 12 km · Patzicía 12 km · Jocotenango 13 km · Antigua Guatemala 15 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 Chimaltenango (14.6588°, -90.8216°, elevation 1,795 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).