Escuintla weather in September

In September, Escuintla sees average daytime highs of 27°C and overnight lows near 20°C, with 421 mm of rain across 29.5 wet days and about 12.1 hours of daylight. It is the 11th-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 27°C through the month. The sky is clear or mostly clear about 1% of the time in September, and the air most often feels muggy.

Daylight stretches from about 12 h 18 min at the start of September to 11 h 54 min by month's end. Set against the rest of the year, September is Escuintla's 12th-clearest and 11th-windiest month. For the whole year in context, see Escuintla's year-round climate.

Daytime high
27°
11th warmest
Overnight low
20°
10th coldest
Rainfall
421 mm
29.5 wet days
Daylight
12 h 06 min
5:55 AM – 6:00 PM
Cloud cover
87%
12th clearest
Wind
4 km/h
11th windiest
Solar energy
4.93 kWh/m²
Travel score
3.3
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 27°C through the month.

A typical September day in Escuintla reaches about 27°C in the afternoon and slips back to 20°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 29°C. Set against its neighbours, September runs on par with August and on par with October.

15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12820
22820
32820
42820
52820
62820
72820
82820
92820
102820
112820
122820
132820
142720
152720
162720
172720
182720
192720
202720
212720
222720
232720
242720
252720
262720
272720
282720
292720
302720

Escuintla weather by month

How September compares with the rest of the year at a glance. September is the 11th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 18°103.111.27.1
Feb30° / 18°92.711.56.6
Mar30° / 19°297.711.95.7
Apr30° / 20°8617.212.34.5
May28° / 20°29927.812.73.5
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

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 1% of the time in September, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 6% of September, with mostly cloudy or overcast conditions the remaining 93%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1991
2892
3892
4892
5892
6793
7793
8793
9793
10793
11793
12793
13793
14793
15793
16793
17694
18694
19595
20595
21595
22595
23595
24595
25694
26793
27793
28793
29892
30892

Chance of precipitation in September

Any precipitation

Escuintla gets around 421 mm of rain over 29.5 wet days in September, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 98% and peaks near 99% on the wettest days.

0%20%40%60%80%100%151015202530
Rain chance (%)
197
298
398
498
598
698
798
898
998
1098
1198
1298
1398
1498
1598
1698
1798
1899
1999
2099
2199
2299
2399
2499
2599
2699
2799
2899
2999
3099

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

Most of September feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, September lands in the muggy band about 71% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Humid (%)Muggy (%)Oppressive (%)
107327
207426
307426
407426
507426
607426
707327
807327
907228
1007228
1107129
1207030
1307030
1406931
1506931
1606931
1706931
1806931
1906931
2006931
2106931
2207030
2307030
2407129
2507129
2607129
2707228
2807228
2907327
3017227

Wind in September

Winds average 4 km/h in September.

Across September, daily wind ranges from about 4 km/h on the calmest days to 4 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
14calm
24calm
34calm
44calm
54calm
64calm
74calm
84calm
94calm
104calm
114calm
124calm
134calm
144calm
154calm
164calm
174calm
184calm
194calm
204calm
214calm
224calm
234calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 18 min at the start of September to 11 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 24 minutes over September. Sunrise moves from 5:54 AM to 5:56 AM, and sunset from 6:11 PM to 5:49 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.35:546:11
212.35:556:11
312.35:556:10
412.25:556:09
512.25:556:08
612.25:556:08
712.25:556:07
812.25:556:06
912.25:556:05
1012.25:556:05
1112.15:556:04
1212.15:556:03
1312.15:556:02
1412.15:556:01
1512.15:556:01
1612.15:556:00
1712.15:555:59
1812.15:555:58
1912.05:555:57
2012.05:555:57
2112.05:555:56
2212.05:555:55
2312.05:555:54
2412.05:555:54
2512.05:565:53
2611.95:565:52
2711.95:565:51
2811.95:565:51
2911.95:565:50
3011.95:565:49

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.93 kWh/m².

For context, solar energy here swings from a low near 4.76 kWh/m² to a high of 6.34 kWh/m² in March across the year — September's 4.93 kWh/m² sits near the bottom.

0246151015202530
Solar energy (kWh/m²)Level
15.3Bright
25.3Bright
35.3Bright
45.3Bright
55.2Bright
65.2Bright
75.2Bright
85.2Bright
95.2Bright
105.1Bright
115.1Bright
125.1Bright
135.1Bright
145.0Bright
155.0Bright
165.0Bright
174.9Bright
184.9Bright
194.9Bright
204.8Bright
214.8Bright
224.8Bright
234.7Bright
244.7Bright
254.7Bright
264.7Bright
274.6Bright
284.6Bright
294.6Bright
304.6Bright
Planning a trip in September

Hazard calendar for Escuintla

In seasonPeak

In September, Escuintla sits inside its atlantic hurricane and monsoon season. The full year is below, with each hazard's peak months called out.

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

Escuintla'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

Is September a good time to visit Escuintla?

Our two travel scores rate September for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

3.3
Sightseeing
9th-best month of the year
3.5
Beach & pool
12th-best month of the year

September is a weaker month for outdoor sightseeing in Escuintla.

What to pack for Escuintla in September

From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In September, Escuintla sees daytime highs around 27°C and nights near 20°C. Pack light clothes and rain gear. Worth having: sun protection. About 30 days see rain.

light clothesrain gearsun protection

Sea temperature near Escuintla in September

The nearest coast averages about 30°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 48 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 in Escuintla in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Escuintla 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

Air quality in Escuintla in September

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where September falls, not just the annual average.

Air quality in Escuintla 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
Location & terrain

Where is Escuintla?

Escuintla sits at 14.3°N, 90.8°W, 349 m above sea level, in Guatemala. The nearest listed city is Masagua, 13 km away.

Santa Lucía CotzumalguapaAmatitlánYepocapa

Topography around Escuintla

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

Within 3 km, the terrain around Escuintla has only modest variations in elevation — a maximum elevation change of 221 m around an average of 338 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 2,074 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,945 m.

The land around Escuintla is covered by trees (44%) and artificial surfaces (32%) within 3 km, trees (61%) and grassland (26%) within 16 km, and trees (51%) within 80 km.

3 km
221 m
16 km
2,074 m
80 km
3,945 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwatermangroves
September weather nearby: Masagua 13 km · Palín 15 km · Alotenango 21 km · Santa María de Jesús 23 km · Ciudad Vieja 25 km · Santa Lucía Cotzumalguapa 26 km · Amatitlán 26 km · Yepocapa 29 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 Escuintla (14.301°, -90.7882°, elevation 349 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).