San Vicente weather in December

In December, San Vicente sees average daytime highs of 32°C and overnight lows near 20°C, with 8 mm of rain across 1.7 wet days and about 11.2 hours of daylight. It is the 5th-warmest and 10th-wettest month of the year here.

Day-to-day highs hold fairly steady near 32°C through the month. The sky is clear or mostly clear about 72% of the time in December, and the air most often feels humid.

Daylight stretches from about 11 h 18 min at the start of December to 11 h 12 min by month's end. Set against the rest of the year, December is San Vicente's 3rd-clearest and 2nd-windiest month. For the whole year in context, see San Vicente's year-round climate.

Daytime high
32°
5th warmest
Overnight low
20°
2nd coldest
Rainfall
8 mm
1.7 wet days
Daylight
11 h 12 min
6:15 AM – 5:27 PM
Cloud cover
30%
3rd clearest
Wind
7 km/h
2nd windiest
Solar energy
5.25 kWh/m²
Travel score
5.0
out of 10

San Vicente is city in El Salvador.

Density
155/km²
people per km²
Founded
1635

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 32°C through the month.

A typical December day in San Vicente reaches about 32°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 30°C and 34°C. Set against its neighbours, December runs about 1°C warmer than November and on par with January.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13220
23220
33220
43220
53220
63220
73220
83220
93220
103220
113220
123220
133220
143220
153220
163220
173220
183220
193220
203220
213220
223220
233220
243220
253220
263220
273320
283320
293320
303320
313320

How December really feels in San Vicente

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

San Vicente weather by month

How December compares with the rest of the year at a glance. December is the 5th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan33° / 20°30.711.34.7
Feb34° / 21°30.911.54.0
Mar34° / 21°133.811.93.5
Apr34° / 22°5912.112.33.1
May32° / 23°26125.412.62.6
Jun31° / 22°25825.512.82.8
Jul32° / 22°17320.312.73.0
Aug32° / 22°2282412.52.8
Sep30° / 22°29427.412.12.7
Oct30° / 22°25523.611.73.4
Nov31° / 21°518.911.44.6
Dec32° / 20°81.711.25.0

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 72% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 15% 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
28020
38119
48218
58416
68416
78614
88614
98713
108713
118812
128812
138911
148911
158911
168911
178911
188911
199010
20919
21919
22919
23919
249010
259010
269010
279010
288911
298911
308911
318812

Chance of precipitation in December

Any precipitation

San Vicente gets around 8 mm of rain over 1.7 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 6% and peaks near 12% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)
112
211
310
49
58
68
77
87
96
106
116
126
136
145
155
165
175
185
195
205
214
224
234
244
254
264
274
284
294
304
314

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 51% of days. Sticky, muggy-or-worse air turns up on roughly 23% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
121246364
221347344
321348334
421349323
521450313
631450303
731550293
831552282
931652272
1031653262
1131752262
1231852252
1331952242
1431953232
1542052231
1642152221
1742351211
1842451201
1942551191
2042651181
2142751171
2242851161
2342952150
2443051150
2543052140
2643152130
2753151130
2853152120
2953152120
3053251120
3163251110

Wind in December

Winds average 7 km/h in December.

Across December, daily wind ranges from about 6 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
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
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 18 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 shrink by about 6 minutes over December. Sunrise moves from 6:07 AM to 6:22 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)
111.36:075:22
211.26:085:23
311.26:085:23
411.26:095:23
511.26:095:23
611.26:105:24
711.26:115:24
811.26:115:24
911.26:125:25
1011.26:125:25
1111.26:135:25
1211.26:135:26
1311.26:145:26
1411.26:145:26
1511.26:155:27
1611.26:155:27
1711.26:165:28
1811.26:165:28
1911.26:175:29
2011.26:175:29
2111.26:185:29
2211.26:185:30
2311.26:195:30
2411.26:195:31
2511.26:205:31
2611.26:205:32
2711.26:215:32
2811.26:215:33
2911.26:215:33
3011.26:225:34
3111.26:225:34

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.25 kWh/m².

For context, solar energy here swings from a low near 4.87 kWh/m² to a high of 6.36 kWh/m² in March across the year — December's 5.25 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.2Bright
25.2Bright
35.2Bright
45.2Bright
55.2Bright
65.2Bright
75.2Bright
85.2Bright
95.2Bright
105.2Bright
115.2Bright
125.2Bright
135.2Bright
145.2Bright
155.2Bright
165.2Bright
175.2Bright
185.2Bright
195.2Bright
205.2Bright
215.2Bright
225.2Bright
235.3Bright
245.3Bright
255.3Bright
265.3Bright
275.3Bright
285.3Bright
295.3Bright
305.3Bright
315.3Bright
Planning a trip in December

Hazard calendar for San Vicente

In seasonPeak

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

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

San Vicente's rainy season runs May–October, when most of the year's rain falls.

Atlantic hurricane
Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is December a good time to visit San Vicente?

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

5.0
Sightseeing
1st-best month of the year
8.0
Beach & pool
2nd-best month of the year

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

What to pack for San Vicente in December

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

In December, San Vicente sees daytime highs around 32°C and nights near 20°C. Pack light clothes. Worth having: sun protection.

light clothessun protection

Sea temperature near San Vicente in December

The nearest coast averages about 29°C in December — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 47 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 San Vicente 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 San Vicente 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 San Vicente 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 San Vicente 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 San Vicente?

San Vicente sits at 13.6°N, 88.8°W, 405 m above sea level, in El Salvador. The nearest listed city is Zacatecoluca, 17 km away.

ZacatecolucaCojutepequeSan MartínSensuntepequeIlopangoSantiago de MaríaSoyapangoSuchitoto

Topography around San Vicente

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

Within 3 km, the terrain around San Vicente has significant variations in elevation — a maximum elevation change of 461 m around an average of 464 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 2,150 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,483 m.

The land around San Vicente is covered by trees (40%) and grassland (36%) within 3 km, trees (55%) and grassland (35%) within 16 km, and trees (48%), grassland (22%) and water (22%) within 80 km.

3 km
461 m
16 km
2,150 m
80 km
2,483 m
treesshrubsgrasslandcroplandartificial surfaceswatermangroves
December weather nearby: Zacatecoluca 17 km · Cojutepeque 18 km · San Martín 21 km · Sensuntepeque 31 km · Ilopango 36 km · Santiago de María 39 km · Soyapango 39 km · Suchitoto 42 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 San Vicente (13.6411°, -88.7846°, elevation 405 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).