Ilopango weather in August

In August, Ilopango sees average daytime highs of 31°C and overnight lows near 22°C, with 223 mm of rain across 24.2 wet days and about 12.5 hours of daylight. It is the 8th-warmest and 5th-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 muggy.

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 Ilopango's 10th-clearest and 8th-windiest month. For the whole year in context, see Ilopango's year-round climate.

Daytime high
31°
8th warmest
Overnight low
22°
11th coldest
Rainfall
223 mm
24.2 wet days
Daylight
12 h 30 min
5:47 AM – 6:14 PM
Cloud cover
73%
10th clearest
Wind
4 km/h
8th windiest
Solar energy
5.77 kWh/m²
Travel score
2.9
out of 10

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 Ilopango reaches about 31°C in the afternoon and slips back to 22°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 34°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)
13222
23222
33222
43222
53222
63222
73222
83222
93222
103222
113222
123222
133222
143122
153122
163122
173122
183122
193122
203122
213122
223122
233122
243122
253122
263122
273122
283122
293122
303122
313122

How August really feels in Ilopango

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.

Ilopango weather by month

How August compares with the rest of the year at a glance. August is the 8th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan32° / 20°30.711.35.1
Feb33° / 20°30.911.54.5
Mar34° / 21°13411.93.9
Apr33° / 22°5612.212.33.3
May32° / 22°23925.312.62.7
Jun31° / 22°26025.512.82.8
Jul32° / 22°17320.412.73.1
Aug31° / 22°22324.212.52.9
Sep30° / 22°29427.612.12.8
Oct30° / 21°23523.711.73.4
Nov31° / 20°498.811.44.9
Dec32° / 20°81.711.25.4

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
53367
63367
73367
83367
93367
103367
113367
123268
133268
143268
153169
163169
173169
183070
193070
202971
212872
222773
232773
242575
252476
262476
272377
282278
292278
302179
312179

Chance of precipitation in August

Any precipitation

Ilopango gets around 223 mm of rain over 24.2 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 78% and peaks near 88% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%100%151015202531
Rain chance (%)
168
269
370
471
572
673
773
874
975
1076
1176
1277
1377
1478
1578
1678
1779
1879
1980
2080
2181
2281
2382
2483
2583
2684
2785
2886
2986
3087
3188

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the muggy band about 51% of days. Sticky, muggy-or-worse air turns up on roughly 99% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)
116435
216336
316336
416237
516138
616138
716039
815940
915940
1015841
1115841
1215742
1315643
1415544
1515445
1615346
1715247
1815148
1905050
2004951
2104753
2204654
2304456
2404357
2504159
2604060
2703961
2803862
2903763
3003664
3103565

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 5:44 AM to 5:48 AM, and sunset from 6:21 PM to 6:05 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.65:446:21
212.65:446:21
312.65:456:20
412.65:456:20
512.65:456:19
612.65:456:19
712.65:456:19
812.55:456:18
912.55:466:18
1012.55:466:17
1112.55:466:17
1212.55:466:16
1312.55:466:16
1412.55:466:15
1512.55:476:15
1612.55:476:14
1712.45:476:14
1812.45:476:13
1912.45:476:13
2012.45:476:12
2112.45:476:11
2212.45:476:11
2312.45:486:10
2412.45:486:10
2512.45:486:09
2612.35:486:08
2712.35:486:08
2812.35:486:07
2912.35:486:06
3012.35:486:06
3112.35:486:05

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.77 kWh/m².

For context, solar energy here swings from a low near 4.79 kWh/m² to a high of 6.28 kWh/m² in March across the year — August's 5.77 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
16.1Intense
26.0Intense
36.0Intense
46.0Intense
56.0Bright
66.0Bright
76.0Bright
85.9Bright
95.9Bright
105.9Bright
115.9Bright
125.9Bright
135.8Bright
145.8Bright
155.8Bright
165.8Bright
175.8Bright
185.7Bright
195.7Bright
205.7Bright
215.7Bright
225.6Bright
235.6Bright
245.6Bright
255.6Bright
265.5Bright
275.5Bright
285.5Bright
295.5Bright
305.5Bright
315.4Bright
Planning a trip in August

Hazard calendar for Ilopango

In seasonPeak

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

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

Ilopango'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 Ilopango?

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
4.4
Beach & pool
9th-best month of the year

August is a weaker month for outdoor sightseeing in Ilopango.

What to pack for Ilopango in August

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

In August, Ilopango sees daytime highs around 31°C and nights near 22°C. Pack light clothes and rain gear. Worth having: sun protection. About 24 days see rain.

light clothesrain gearsun protection

Sea temperature near Ilopango 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 36 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 Ilopango 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 Ilopango peaks around March 21 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 12 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 highMar 21UV 13Dec 12UV 9
UV index (midday)Level
Jan9Very high
Feb13Extreme
Mar13Extreme
Apr13Extreme
May12Extreme
Jun13Extreme
Jul12Extreme
Aug12Extreme
Sep11Extreme
Oct11Extreme
Nov9Very high
Dec9Very high

Air quality in Ilopango 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 Ilopango is worst in April — around 43 µg/m³ PM2.5 (poor), about 1.6× the cleanest month (September, 26 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModeratePoorApr 1942 µg/m³Sep 1026 µg/m³
PM2.5 (µg/m³)Level
Jan34Moderate
Feb35Moderate
Mar35Poor
Apr43Poor
May40Poor
Jun27Moderate
Jul30Moderate
Aug27Moderate
Sep26Moderate
Oct29Moderate
Nov35Moderate
Dec36Poor
Location & terrain

Where is Ilopango?

Ilopango sits at 13.7°N, 89.1°W, 620 m above sea level, in El Salvador. The nearest listed city is Soyapango, 3.0 km away.

Topography around Ilopango

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

Within 3 km, the terrain around Ilopango has significant variations in elevation — a maximum elevation change of 282 m around an average of 584 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,449 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,703 m.

The land around Ilopango is covered by trees (39%) and artificial surfaces (38%) within 3 km, trees (66%) within 16 km, and trees (48%), water (22%) and grassland (21%) within 80 km.

3 km
282 m
16 km
1,449 m
80 km
2,703 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwatermangroves
August weather nearby: Soyapango 3.0 km · Delgado 7.0 km · Cuscatancingo 8.0 km · San Salvador 9.0 km · Mejicanos 9.0 km · San Marcos 9.0 km · Ayutuxtepeque 11 km · Apopa 14 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 Ilopango (13.7017°, -89.1094°, elevation 620 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).