Chalatenango weather in December

In December, Chalatenango sees average daytime highs of 31°C and overnight lows near 20°C, with 4 mm of rain across 1 wet days and about 11.2 hours of daylight. It is the 8th-warmest and 10th-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 75% of the time in December, and the air most often feels humid.

Daylight stretches from about 11 h 12 min at the start of December to 11 h 12 min by month's end. Set against the rest of the year, December is Chalatenango's 3rd-clearest and 2nd-windiest month. For the whole year in context, see Chalatenango's year-round climate.

Daytime high
31°
8th warmest
Overnight low
20°
2nd coldest
Rainfall
4 mm
1 wet days
Daylight
11 h 12 min
6:17 AM – 5:27 PM
Cloud cover
28%
3rd clearest
Wind
7 km/h
2nd windiest
Solar energy
5.04 kWh/m²
Travel score
5.7
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 December

Average highAverage lowShaded bands: 10–90% of days

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

A typical December day in Chalatenango reaches about 31°C in the afternoon and slips back to 20°C overnight — a 12°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, December runs on par with November and on par with January.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13120
23120
33120
43120
53120
63120
73120
83120
93120
103120
113120
123120
133120
143120
153120
163119
173119
183119
193119
203119
213119
223119
233119
243119
253119
263119
273219
283219
293219
303219
313219

How December really feels in Chalatenango

Once humidity and wind are folded in, December averages 0 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
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

December sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Chalatenango weather by month

How December compares with the rest of the year at a glance. December is the 8th-warmest and 10th-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 December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 75% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 13% of December, with mostly cloudy or overcast conditions the remaining 12%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17921
28119
38119
48317
58416
68515
78515
88713
98713
108812
118812
128812
138911
148911
158911
168911
179010
189010
199010
20919
21919
22919
23919
24919
25928
26919
27919
28919
29919
309010
319010

Chance of precipitation in December

Any precipitation

Chalatenango gets around 4 mm of rain over 1 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 3% and peaks near 7% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
17
26
36
45
55
65
74
84
94
104
113
123
133
143
153
163
173
183
193
202
212
222
232
242
252
262
272
282
292
302
312

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the humid band about 53% of days. Sticky, muggy-or-worse air turns up on roughly 9% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
13205819
24215718
34215817
44215916
54225915
64235914
75235913
85245813
95255713
105265712
115275612
126285511
136295411
146305410
156315310
16732529
17733519
18734518
19736507
20737497
21738496
22739486
23740485
24741475
25742474
26742474
27742473
28743473
29743473
30744472
31844462

Wind in December

Winds average 7 km/h in December.

Across December, daily wind ranges from about 7 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in December

DaylightNight

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

Days grow by about 0 minutes over December. Sunrise moves from 6:09 AM to 6:23 AM, and sunset from 5:22 PM to 5:34 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.26:095:22
211.26:095:23
311.26:105:23
411.26:105:23
511.26:115:23
611.26:115:24
711.26:125:24
811.26:125:24
911.26:135:25
1011.26:145:25
1111.26:145:25
1211.26:155:26
1311.26:155:26
1411.26:165:26
1511.26:165:27
1611.26:175:27
1711.26:175:28
1811.26:185:28
1911.26:185:28
2011.26:195:29
2111.26:195:29
2211.26:205:30
2311.26:205:30
2411.26:215:31
2511.26:215:31
2611.26:215:32
2711.26:225:32
2811.26:225:33
2911.26:235:33
3011.26:235:34
3111.26:235:34

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.04 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 — December's 5.04 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.0Bright
25.0Bright
35.0Bright
45.0Bright
55.0Bright
65.0Bright
75.0Bright
85.0Bright
95.0Bright
105.0Bright
115.0Bright
125.0Bright
135.0Bright
145.0Bright
155.0Bright
165.0Bright
175.0Bright
185.0Bright
195.0Bright
205.0Bright
215.0Bright
225.0Bright
235.0Bright
245.0Bright
255.1Bright
265.1Bright
275.1Bright
285.1Bright
295.1Bright
305.1Bright
315.1Bright
Planning a trip in December

Hazard calendar for Chalatenango

In seasonPeak

None of Chalatenango's seasonal hazards are active in December. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

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 December a good time to visit Chalatenango?

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

5.7
Sightseeing
1st-best month of the year
8.5
Beach & pool
2nd-best month of the year

December is a reasonable time to visit Chalatenango for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Chalatenango in December

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

In December, Chalatenango sees daytime highs around 31°C and nights near 20°C. Pack light clothes. Worth having: sun protection.

light clothessun protection

UV index in Chalatenango in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 9 (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 December

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where December 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
December 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).