Chalatenango weather in May

In May, Chalatenango sees average daytime highs of 32°C and overnight lows near 22°C, with 137 mm of rain across 20.8 wet days and about 12.6 hours of daylight. It is the 4th-warmest and 5th-wettest month of the year here.

Highs ease over the month, from about 34°C in the first days to 31°C by the end. The sky is clear or mostly clear about 15% of the time in May, and the air most often feels muggy.

Daylight stretches from about 12 h 30 min at the start of May to 12 h 48 min by month's end. Set against the rest of the year, May is Chalatenango's 9th-clearest and 10th-windiest month. For the whole year in context, see Chalatenango's year-round climate.

Daytime high
32°
4th warmest
Overnight low
22°
12th coldest
Rainfall
137 mm
20.8 wet days
Daylight
12 h 36 min
5:33 AM – 6:11 PM
Cloud cover
71%
9th clearest
Wind
4 km/h
10th windiest
Solar energy
5.44 kWh/m²
Travel score
2.8
out of 10

Chalatenango is city in El Salvador.

Density
147/km²
people per km²
Founded
1786

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

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 34°C in the first days to 31°C by the end.

A typical May day in Chalatenango reaches about 32°C in the afternoon and slips back to 22°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 30°C and 35°C. Set against its neighbours, May runs about 2°C cooler than April and about 2°C warmer than June.

20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13422
23422
33422
43422
53422
63322
73322
83322
93322
103322
113322
123322
133322
143322
153322
163322
173322
183222
193222
203222
213222
223222
233222
243222
253122
263122
273122
283122
293122
303122
313122

How May really feels in Chalatenango

Once humidity and wind are folded in, May 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 May is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Chalatenango weather by month

How May compares with the rest of the year at a glance. May is the 4th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan32° / 19°10.211.35.5
Feb33° / 20°10.111.54.6
Mar34° / 21°51.311.93.9
Apr34° / 22°236.212.33.3
May32° / 22°13720.812.62.8
Jun31° / 22°1842412.82.9
Jul32° / 22°12118.212.73.2
Aug32° / 22°14321.312.53.0
Sep30° / 21°21525.812.12.9
Oct30° / 21°16419.411.73.9
Nov31° / 20°285.111.35.4
Dec31° / 20°4111.25.7

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 15% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 18% of May, with mostly cloudy or overcast conditions the remaining 68%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15347
25347
35248
45050
55050
64951
74753
84654
94357
104258
114060
123961
133664
143466
153268
162971
172971
182674
192476
202476
212377
222278
232080
241981
251981
261783
271783
281783
291684
301684
311585

Chance of precipitation in May

Any precipitation

Chalatenango gets around 137 mm of rain over 20.8 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 66% and peaks near 84% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
143
245
346
448
550
652
753
855
956
1058
1159
1261
1363
1464
1566
1668
1770
1871
1973
2074
2175
2276
2377
2478
2579
2680
2781
2882
2983
3084
3184

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the muggy band about 63% of days. Sticky, muggy-or-worse air turns up on roughly 83% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
12921618
21820638
31819648
41819639
51718659
617176510
717176510
807166611
907166611
1007156612
1106156613
1206156514
1316146415
1415146416
1515146317
1614136418
1714136319
1813126420
1913126321
2013116322
2112116323
2212106324
231196425
241196227
250186328
260176230
270166231
280066133
290056035
300046036
310045937

Wind in May

Winds average 4 km/h in May.

Across May, daily wind ranges from about 4 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
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 May

DaylightNight

Daylight runs from about 12 h 30 min at the start of May to 12 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 18 minutes over May. Sunrise moves from 5:38 AM to 5:30 AM, and sunset from 6:08 PM to 6:16 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.55:386:08
212.55:386:08
312.55:376:08
412.55:376:08
512.55:366:09
612.55:366:09
712.65:366:09
812.65:356:09
912.65:356:10
1012.65:346:10
1112.65:346:10
1212.65:346:10
1312.65:336:11
1412.65:336:11
1512.65:336:11
1612.65:336:11
1712.75:326:12
1812.75:326:12
1912.75:326:12
2012.75:326:13
2112.75:316:13
2212.75:316:13
2312.75:316:14
2412.75:316:14
2512.75:316:14
2612.75:316:14
2712.75:316:15
2812.75:306:15
2912.75:306:15
3012.85:306:16
3112.85:306:16

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.44 kWh/m².

For context, solar energy here swings from a low near 4.65 kWh/m² to a high of 6.18 kWh/m² in March across the year — May's 5.44 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.9Bright
25.9Bright
35.9Bright
45.8Bright
55.8Bright
65.8Bright
75.8Bright
85.8Bright
95.7Bright
105.7Bright
115.7Bright
125.7Bright
135.6Bright
145.6Bright
155.5Bright
165.5Bright
175.5Bright
185.4Bright
195.4Bright
205.3Bright
215.3Bright
225.2Bright
235.2Bright
245.2Bright
255.1Bright
265.1Bright
275.1Bright
285.0Bright
295.0Bright
305.0Bright
315.0Bright
Planning a trip in May

Hazard calendar for Chalatenango

In seasonPeak

In May, Chalatenango sits inside its monsoon season. The full year is below, with each hazard's peak months called out.

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

Chalatenango'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 May a good time to visit Chalatenango?

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

2.8
Sightseeing
12th-best month of the year
4.7
Beach & pool
9th-best month of the year

May is a weaker month for outdoor sightseeing in Chalatenango.

What to pack for Chalatenango in May

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

In May, Chalatenango sees daytime highs around 32°C and nights near 22°C. Pack light clothes and rain gear. Worth having: sun protection. About 21 days see rain.

light clothesrain gearsun protection

UV index in Chalatenango in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Chalatenango peaks around April 11 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 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 11UV 14Dec 15UV 9
UV index (midday)Level
Jan10Very high
Feb13Extreme
Mar14Extreme
Apr14Extreme
May13Extreme
Jun13Extreme
Jul12Extreme
Aug12Extreme
Sep12Extreme
Oct12Extreme
Nov10Very high
Dec9Very high

Air quality in Chalatenango in May

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Chalatenango is worst in April — around 33 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (December, 16 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateApr 2133 µg/m³Dec 1716 µg/m³
PM2.5 (µg/m³)Level
Jan16Moderate
Feb18Moderate
Mar21Moderate
Apr33Moderate
May31Moderate
Jun21Moderate
Jul23Moderate
Aug20Moderate
Sep19Moderate
Oct18Moderate
Nov16Moderate
Dec16Moderate
Location & terrain

Where is Chalatenango?

Chalatenango sits at 14.0°N, 88.9°W, 400 m above sea level, in El Salvador. The nearest listed city is Suchitoto, 15 km away.

SuchitotoAguilaresSan MartínCojutepequeApopaSensuntepequeIlopangoSoyapango

Topography around Chalatenango

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

Within 3 km, the terrain around Chalatenango has large variations in elevation — a maximum elevation change of 727 m around an average of 458 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,459 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,817 m.

The land around Chalatenango is covered by trees (50%) and grassland (40%) within 3 km, trees (44%) and grassland (38%) within 16 km, and trees (65%) and grassland (24%) within 80 km.

3 km
727 m
16 km
1,459 m
80 km
2,817 m
treesshrubsgrasslandcroplandartificial surfaceswater
May weather nearby: Suchitoto 15 km · Aguilares 29 km · San Martín 29 km · Cojutepeque 36 km · Apopa 37 km · Sensuntepeque 38 km · Ilopango 42 km · Soyapango 43 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 Chalatenango (14.0414°, -88.9395°, elevation 400 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). 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).