Zacatecoluca weather in August

In August, Zacatecoluca sees average daytime highs of 31°C and overnight lows near 23°C, with 303 mm of rain across 25.3 wet days and about 12.4 hours of daylight. It is the 8th-warmest and 4th-wettest month of the year here.

Day-to-day highs hold fairly steady near 31°C through the month. The sky is clear or mostly clear about 11% of the time in August, and the air most often feels oppressive.

Daylight stretches from about 12 h 36 min at the start of August to 12 h 18 min by month's end. Set against the rest of the year, August is Zacatecoluca's 9th-clearest and 9th-windiest month. For the whole year in context, see Zacatecoluca's year-round climate.

Daytime high
31°
8th warmest
Overnight low
23°
8th coldest
Rainfall
303 mm
25.3 wet days
Daylight
12 h 30 min
5:46 AM – 6:13 PM
Cloud cover
73%
9th clearest
Wind
4 km/h
9th windiest
Solar energy
6.08 kWh/m²
Travel score
2.9
out of 10

Zacatecoluca is city in El Salvador.

Density
123/km²
people per km²
Founded
1852

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

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 31°C through the month.

A typical August day in Zacatecoluca reaches about 31°C in the afternoon and slips back to 23°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 33°C. Set against its neighbours, August runs on par with July and about 1°C warmer than September.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13123
23123
33123
43123
53123
63123
73123
83123
93123
103123
113123
123123
133123
143123
153123
163123
173123
183123
193123
203123
213123
223123
233123
243123
253123
263122
273122
283022
293022
303022
313022

How August really feels in Zacatecoluca

Once humidity and wind are folded in, August averages 31 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
31
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in August is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Zacatecoluca weather by month

How August compares with the rest of the year at a glance. August is the 8th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan33° / 20°30.911.34.8
Feb33° / 21°41.211.64.3
Mar34° / 22°154.411.93.8
Apr33° / 23°6413.712.33.2
May32° / 23°2962612.62.7
Jun31° / 23°3262612.82.8
Jul31° / 23°23021.412.73.1
Aug31° / 23°30325.312.42.9
Sep30° / 22°37328.212.12.8
Oct30° / 22°34025.211.73.3
Nov31° / 21°7510.511.44.7
Dec32° / 21°92.111.25.2

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 11% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 18% of August, with mostly cloudy or overcast conditions the remaining 71%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13565
23565
33367
43367
53268
63268
73268
83268
93268
103268
113268
123268
133070
143070
153169
163169
173169
183070
193070
202971
212872
222773
232773
242575
252575
262575
272377
282377
292278
302179
312179

Chance of precipitation in August

Any precipitation

Zacatecoluca gets around 303 mm of rain over 25.3 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 81% and peaks near 90% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%100%151015202531
Rain chance (%)
173
274
375
476
577
677
778
879
979
1080
1180
1280
1381
1481
1581
1681
1781
1881
1982
2082
2182
2283
2384
2485
2585
2686
2787
2888
2989
3089
3190

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the oppressive band about 92% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
11927
21927
31927
41918
50928
60928
70928
80928
90928
100928
110937
120937
130937
140937
150928
160928
170928
180928
190928
200928
210928
220928
230928
240928
250928
260928
270928
280937
290937
300937
310946

Wind in August

Winds average 4 km/h in August.

Across August, 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.

0246810151015202531
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
314calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 12 h 36 min at the start of August to 12 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 18 minutes over August. Sunrise moves from 5:43 AM to 5:47 AM, and sunset from 6:20 PM to 6:04 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.65:436:20
212.65:446:19
312.65:446:19
412.65:446:19
512.65:446:18
612.65:446:18
712.55:456:17
812.55:456:17
912.55:456:17
1012.55:456:16
1112.55:456:16
1212.55:456:15
1312.55:466:15
1412.55:466:14
1512.55:466:14
1612.55:466:13
1712.45:466:13
1812.45:466:12
1912.45:466:11
2012.45:466:11
2112.45:476:10
2212.45:476:10
2312.45:476:09
2412.45:476:08
2512.35:476:08
2612.35:476:07
2712.35:476:07
2812.35:476:06
2912.35:476:05
3012.35:476:05
3112.35:476:04

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 6.08 kWh/m².

For context, solar energy here swings from a low near 5.03 kWh/m² to a high of 6.51 kWh/m² in March across the year — August's 6.08 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
16.4Intense
26.3Intense
36.3Intense
46.3Intense
56.3Intense
66.3Intense
76.3Intense
86.2Intense
96.2Intense
106.2Intense
116.2Intense
126.2Intense
136.1Intense
146.1Intense
156.1Intense
166.1Intense
176.1Intense
186.0Intense
196.0Intense
206.0Intense
216.0Bright
226.0Bright
235.9Bright
245.9Bright
255.9Bright
265.9Bright
275.9Bright
285.8Bright
295.8Bright
305.8Bright
315.8Bright
Planning a trip in August

Hazard calendar for Zacatecoluca

In seasonPeak

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

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

Zacatecoluca'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 August a good time to visit Zacatecoluca?

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

2.9
Sightseeing
9th-best month of the year
4.3
Beach & pool
9th-best month of the year

August is a weaker month for outdoor sightseeing in Zacatecoluca.

What to pack for Zacatecoluca in August

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

In August, Zacatecoluca sees daytime highs around 31°C and nights near 23°C. Pack light clothes, rain gear and sun protection. About 25 days see rain.

light clothesrain gearsun protection

Sea temperature near Zacatecoluca in August

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

The sea at the nearest coast (about 31 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
Apr29Tropical
May30Tropical
Jun30Tropical
Jul30Tropical
Aug30Tropical
Sep30Tropical
Oct29Tropical
Nov29Tropical
Dec29Tropical

UV index in Zacatecoluca in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Zacatecoluca peaks around April 10 at about 13 (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 10UV 13Dec 13UV 9
UV index (midday)Level
Jan10Very high
Feb13Extreme
Mar13Extreme
Apr13Extreme
May12Extreme
Jun13Extreme
Jul12Extreme
Aug12Extreme
Sep12Extreme
Oct11Extreme
Nov9Very high
Dec9Very high

Air quality in Zacatecoluca in August

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Zacatecoluca is worst in April — around 34 µg/m³ PM2.5 (moderate), about 2.6× the cleanest month (January, 13 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateApr 2234 µg/m³Jan 1113 µg/m³
PM2.5 (µg/m³)Level
Jan13Moderate
Feb15Moderate
Mar22Moderate
Apr34Moderate
May32Moderate
Jun21Moderate
Jul25Moderate
Aug20Moderate
Sep18Moderate
Oct17Moderate
Nov16Moderate
Dec13Moderate
Location & terrain

Where is Zacatecoluca?

Zacatecoluca sits at 13.5°N, 88.9°W, 220 m above sea level, in El Salvador. The nearest listed city is San Vicente, 17 km away.

San VicenteCojutepequeSan MartínIlopangoSoyapangoSan MarcosSan SalvadorDelgado

Topography around Zacatecoluca

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

Within 3 km, the terrain around Zacatecoluca has significant variations in elevation — a maximum elevation change of 319 m around an average of 210 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 2,166 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,143 m.

The land around Zacatecoluca is covered by trees (55%) and grassland (26%) within 3 km, trees (44%), grassland (33%) and cropland (20%) within 16 km, and trees (42%), water (28%) and grassland (21%) within 80 km.

3 km
319 m
16 km
2,166 m
80 km
2,143 m
treesshrubsgrasslandcroplandartificial surfaceswatermangroves
August weather nearby: San Vicente 17 km · Cojutepeque 24 km · San Martín 31 km · Ilopango 34 km · Soyapango 37 km · San Marcos 38 km · San Salvador 40 km · Delgado 40 km

El Salvador travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type A / B
115 V · 60 Hz
Prices
≈ 41% of US
price level, 2025
GDP per capita
$5,767
2025
Happiness
6.6 / 10
World Happiness, 2025
Homicide rate
7.9
per 100k, 2022
Road deaths
20.9
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Moderate
EF EPI 523
Religion
Roman Catholic 44%Protestant 40%none 16%

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 Zacatecoluca (13.5087°, -88.8702°, elevation 220 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).