Climate and average weather in El Asintal

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

Best: mid November to early March

Over the course of the year, the temperature in El Asintal typically varies from 21°C to 33°C, and is rarely below 20°C or above 35°C. April is the hottest month of the year, while October is the coldest.

Based on the travel score, the best time of year to visit El Asintal for warm-weather activities is from mid November to early March.

Hottest
Apr
33°
Coldest
Oct
23°
Wettest
Sep
456 mm
Driest
Feb
15 mm
Rain / yr
2518 mm
221 wet days
Daylight
11.1–12.9 h
shortest–longest
Elevation
395 m
14.6°N
Clearest
Jan
29% cloud

El Asintal 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 early March.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

Temperatures in El Asintal stay fairly even through the year, without a distinct hot or cool season. The warmest month is April, with an average high of 33°C and low of 23°C; the coolest is October, with an average low of 23°C and high of 30°C.

Days typically run about 8°C warmer than nights, with the widest day–night swing (around 10°C) in February.

15°20°25°30°35°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan3121
Feb3222
Mar3323
Apr3323
May3224
Jun3023
Jul3123
Aug3023
Sep3023
Oct3023
Nov3023
Dec3122

How hot and cold El Asintal really feels

Feels-like highFeels-like lowactual air temp

The felt-temperature range through the year — heat index on the day's high (summer humidity), wind chill on the night's low (winter wind). The dashed lines are the plain thermometer; the gap is how much hotter or colder it really feels.

On the hottest afternoons, once humidity is folded in, El Asintal feels like about 37°C (around May 2). Nearly every day a year carries some heat stress, peaking in May.

20°25°30°35°40°JanFebMarAprMayJunJulAugSepOctNovDec
Feels-like high (°C)Air high (°C)Feels-like low (°C)Air low (°C)
Jan33312121
Feb34322222
Mar35332323
Apr36332323
May36322324
Jun35302323
Jul35312323
Aug34302323
Sep34302323
Oct33302323
Nov33302223
Dec33312222

Average hourly temperature in El Asintal

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 33°C, and coldest before dawn in October, near 23°C.

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

El Asintal 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
Jan31° / 21°184.911.25.3
Feb32° / 22°153.811.54.8
Mar33° / 23°368.511.94.0
Apr33° / 23°9414.412.33.2
May32° / 24°3512712.72.6
Jun30° / 23°37428.412.82.6
Jul31° / 23°2872712.82.8
Aug30° / 23°36128.612.52.7
Sep30° / 23°45629.212.12.6
Oct30° / 23°38427.711.73.0
Nov30° / 23°11615.511.34.4
Dec31° / 22°276.111.25.4

Chance of rain

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

El Asintal gets about 2518 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 6.5 months, from around Apr 25 to Nov 7, peaking in September at about 98% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Feb 2.

September is the wettest month by volume, with 456 mm over about 29 wet days; February is the driest, with 15 mm.

0%10%20%30%40%50%60%70%80%90%100%110%JanFebMarAprMayJunJulAugSepOctNovDecdrierwetterdriermostly drysome rainoften wetvery wetSep 24 · 98%Feb 2 · 13%
Rain on a day (%)Rain days
Jan165
Feb144
Mar279
Apr4914
May8627
Jun9428
Jul8827
Aug9229
Sep9729
Oct8928
Nov5216
Dec216

Monthly rainfall

Over a full year, El Asintal collects about 2518 mm of rain across 221 wet days — roughly 210 mm in an average month.

It doesn’t fall evenly. September is the wettest month with 456 mm, while February is the driest at just 15 mm. The three wettest months alone bring about 48% of the year’s total.

050100150200250300350400450500JanFebMarAprMayJunJulAugSepOctNovDec1815369435137428736145638411627
Rainfall (mm)Rain days
Jan185
Feb154
Mar369
Apr9414
May35127
Jun37428
Jul28727
Aug36129
Sep45629
Oct38428
Nov11616
Dec276

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In El Asintal, 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 2 and lasts for 6.0 months, ending around May 2. The clearest month is January, when the sky is clear, mostly clear, or partly cloudy 90% of the time on average.

The cloudier part of the year begins around May 3 and lasts for 6.0 months, ending around November 1. The cloudiest month is September, when it is overcast or mostly cloudy 92% 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 4 · 91%Sep 19 · 6%clearmostly clearpartly cloudymostly cloudyovercastclearercloudierclearer
Clearer (%)Cloudier (%)
Jan9010
Feb9010
Mar8416
Apr7030
May2971
Jun1090
Jul1684
Aug1585
Sep892
Oct2476
Nov6733
Dec8812

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 13, 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)
Jan11.26:405:53
Feb11.56:366:07
Mar11.96:206:14
Apr12.35:576:17
May12.75:436:23
Jun12.85:416:33
Jul12.85:496:36
Aug12.55:566:26
Sep12.15:596:04
Oct11.76:025:42
Nov11.36:135:31
Dec11.26:295:37

Sunny days

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

El Asintal 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 24 days.

The sunnier stretch runs 5.4 months, from around Nov 8 to Apr 21. The sunniest month is January, with roughly 23 sunny days (brilliant).

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

051015202530JanFebMarAprMayJunJulAugSepOctNovDecsunniergreyersunniergloomymixedbrightbrilliantJan 2724 daysSep 200 days
Sunny daysSky
Jan24Brilliant
Feb20Bright
Mar17Bright
Apr11Mixed
May4Gloomy
Jun1Gloomy
Jul1Gloomy
Aug1Gloomy
Sep0Gloomy
Oct3Gloomy
Nov13Mixed
Dec22Bright

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.

El Asintal 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 March, when it feels muggy, oppressive or miserable about 88% of the time. Even in February, the mildest month, the air is dry or comfortable only 1% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecmiserablemuggyoppressivehumid
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
Jan11870110
Feb1236870
Mar01262260
Apr0235621
May0058410
Jun0008911
Jul000928
Aug000937
Sep000964
Oct001936
Nov0118801
Dec1758350

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

0510JanFebMarAprMayJunJulAugSepOctNovDeccalmMar 2 · 5 km/hOct 30 · 4 km/h
Wind speed (km/h)Feels
Jan5calm
Feb5calm
Mar5calm
Apr5calm
May4calm
Jun4calm
Jul4calm
Aug4calm
Sep4calm
Oct4calm
Nov4calm
Dec4calm

Hazard calendar for El Asintal

In seasonPeak

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

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

El Asintal's rainy season runs May–October, when most of the year's rain falls.

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

Best time to visit El Asintal

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around late February, El Asintal 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 El Asintal for general outdoor tourist activities is from mid November to late February, with a peak score in the third week of December.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timetravel scoretemperaturecloudsprecipitationDec 16 · 5.5

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
Jan5.3fair
Feb4.8fair
Mar4.0fair
Apr3.2poor
May2.6poor
Jun2.6poor
Jul2.8poor
Aug2.7poor
Sep2.6poor
Oct3.0poor
Nov4.4fair
Dec5.4fair

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 El Asintal for hot-weather activities is from late November to late March, with a peak score in the third week of January.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timebeach/pool scoretemperaturecloudsprecipitationJan 18 · 7.9

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 El Asintal, 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.

El Asintal packs about the same all year — highs hold near 33°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 April, El Asintal sees daytime highs around 33°C and nights near 23°C. Pack light clothes, rain gear and sun protection. About 14 days see rain.

Sea temperature near El Asintal

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 49 km away) is warmest in August at about 30°C and coldest in February 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
Jan29Tropical
Feb28Tropical
Mar29Tropical
Apr30Tropical
May30Tropical
Jun30Tropical
Jul30Tropical
Aug30Tropical
Sep30Tropical
Oct29Tropical
Nov30Tropical
Dec29Tropical

UV index (midday) in El Asintal 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 El Asintal peaks around March 21 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 14 at about 8 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highMar 21UV 12Dec 14UV 8
UV index (midday)Level
Jan9Very high
Feb11Extreme
Mar12Extreme
Apr12Extreme
May11Extreme
Jun12Extreme
Jul11Extreme
Aug11Extreme
Sep11Extreme
Oct10Extreme
Nov8Very high
Dec8Very high

Average hourly UV index in El Asintal

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 hours a day reach index 3 (protection recommended), and 6 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)
Jan6.54.5
Feb7.55.5
Mar86
Apr86
May86
Jun86
Jul86
Aug86
Sep7.55.5
Oct75
Nov6.54
Dec6.53.5

Air quality in El Asintal 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 El Asintal is worst in December — around 45 µg/m³ PM2.5 (poor), about 1.6× the cleanest month (June, 28 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModeratePoorDec 2145 µg/m³Jun 2228 µg/m³
PM2.5 (µg/m³)Level
Jan44Poor
Feb45Poor
Mar41Poor
Apr44Poor
May40Poor
Jun28Moderate
Jul29Moderate
Aug29Moderate
Sep29Moderate
Oct30Moderate
Nov37Poor
Dec45Poor
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

El Asintal 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. El Asintal banks about 6,143 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around April.

02,0004,0006,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan504
Feb475
Mar547
Apr544
May543
Jun504
Jul523
Aug520
Sep494
Oct503
Nov488
Dec500

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.

El Asintal receives about 5.4 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 4.5 and 6.3 kWh/m².

The brighter stretch of the year lasts 3.9 months, from around Jan 26 to May 24. The brightest month is April, averaging about 6.3 kWh/m² (intense).

The dimmest month is October, down near 4.6 kWh/m² — roughly 27% less than the April peak.

01234567JanFebMarAprMayJunJulAugSepOctNovDecdimmerbrighterdimmerdimmoderatebrightintenseApr 106.3 kWhOct 94.5 kWh
Solar energy (kWh/m²)Level
Jan5.3Bright
Feb5.8Bright
Mar6.2Intense
Apr6.3Intense
May5.8Bright
Jun5.2Bright
Jul5.6Bright
Aug5.5Bright
Sep4.9Bright
Oct4.6Bright
Nov4.9Bright
Dec5.0Bright

Where is El Asintal?

El Asintal sits at 14.6°N, 91.7°W, 395 m above sea level, in Guatemala. The nearest listed city is Nuevo San Carlos, 4.0 km away.

Topography around El Asintal

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

Within 3 km, the terrain around El Asintal has significant variations in elevation — a maximum elevation change of 313 m around an average of 384 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,444 m; within 80 km, extreme variations in elevation — a maximum elevation change of 4,178 m.

The land around El Asintal is covered by trees (80%) within 3 km, trees (75%) within 16 km, and trees (54%) and water (21%) within 80 km.

3 km
313 m
16 km
1,444 m
80 km
4,178 m
treesgrasslandcroplandartificial surfaceswatermangroves
Nearby: Nuevo San Carlos 4.0 km · Retalhuleu 9.0 km · San Sebastián 9.0 km · Colomba 12 km · San Felipe 15 km · El Palmar 17 km · Coatepeque 19 km · San Francisco Zapotitlán 22 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 El Asintal (14.5963°, -91.7274°, elevation 395 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).