San Luis weather in December

In December, San Luis sees average daytime highs of 25°C and overnight lows near 18°C, with 114 mm of rain across 18.8 wet days and about 11.1 hours of daylight. It is the 11th-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 25°C through the month. The sky is clear or mostly clear about 15% of the time in December, and the air most often feels muggy.

Daylight stretches from about 11 h 12 min at the start of December to 11 h 06 min by month's end. Set against the rest of the year, December is San Luis's 5th-clearest and 6th-windiest month. For the whole year in context, see San Luis's year-round climate.

Daytime high
25°
11th warmest
Overnight low
18°
3rd coldest
Rainfall
114 mm
18.8 wet days
Daylight
11 h 06 min
6:17 AM – 5:23 PM
Cloud cover
66%
5th clearest
Wind
4 km/h
6th windiest
Solar energy
3.43 kWh/m²
Travel score
5.5
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 25°C through the month.

A typical December day in San Luis reaches about 25°C in the afternoon and slips back to 18°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 21°C and 28°C. Set against its neighbours, December runs about 1°C cooler than November and on par with January.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12518
22518
32518
42518
52518
62518
72518
82518
92518
102518
112518
122518
132518
142518
152518
162518
172518
182518
192518
202518
212518
222518
232517
242517
252517
262517
272517
282517
292517
302517
312517

How December really feels in San Luis

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.

San Luis weather by month

How December compares with the rest of the year at a glance. December is the 11th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan25° / 17°10916.511.25.9
Feb26° / 18°6712.911.56.2
Mar28° / 18°6511.511.96.0
Apr30° / 20°7012.912.34.6
May31° / 21°16521.812.73.4
Jun30° / 21°23126.312.93.0
Jul29° / 21°19427.712.83.3
Aug29° / 21°20327.412.53.2
Sep29° / 21°25628.412.12.9
Oct28° / 20°23626.211.73.8
Nov26° / 19°20020.911.34.8
Dec25° / 18°11418.811.15.5

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

Beyond those clear spells, partly cloudy skies cover about 22% of December, with mostly cloudy or overcast conditions the remaining 63%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13070
23070
33070
43169
53169
63367
73367
83466
93565
103565
113664
123763
133763
143862
153862
163862
173961
183961
193961
203961
214060
224060
234060
244060
254060
264060
274060
283961
293961
303862
313862

Chance of precipitation in December

Any precipitation

San Luis gets around 114 mm of rain over 18.8 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 60% and peaks near 65% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
165
265
365
465
565
665
765
864
964
1063
1163
1262
1361
1460
1560
1659
1758
1858
1957
2057
2157
2256
2356
2456
2557
2657
2757
2857
2957
3057
3157

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the muggy band about 68% of days. Sticky, muggy-or-worse air turns up on roughly 74% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
13176911
23177010
33177010
4317719
5317719
6417709
7417709
8417709
9417718
10418708
11418708
12519688
13520678
14521677
15521677
16522676
17523666
18524656
19525655
20525655
21526654
22526654
23526654
24526663
25526663
26425683
27425683
28425692
29425692
30425692
31525682

Wind in December

Winds average 4 km/h in December.

Across December, 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 December

DaylightNight

Daylight runs from about 11 h 12 min at the start of December to 11 h 06 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 6:08 AM to 6:23 AM, and sunset from 5:19 PM to 5:30 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.26:085:19
211.26:095:19
311.26:105:19
411.26:105:19
511.16:115:19
611.16:115:20
711.16:125:20
811.16:125:20
911.16:135:21
1011.16:135:21
1111.16:145:21
1211.16:155:22
1311.16:155:22
1411.16:165:22
1511.16:165:23
1611.16:175:23
1711.16:175:24
1811.16:185:24
1911.16:185:24
2011.16:195:25
2111.16:195:25
2211.16:205:26
2311.16:205:26
2411.16:215:27
2511.16:215:27
2611.16:215:28
2711.16:225:28
2811.16:225:29
2911.16:235:29
3011.16:235:30
3111.16:235:30

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 3.43 kWh/m².

For context, solar energy here swings from a low near 3.42 kWh/m² to a high of 6.05 kWh/m² in April across the year — December's 3.43 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.3Moderate
23.3Moderate
33.3Moderate
43.3Moderate
53.3Moderate
63.3Moderate
73.3Moderate
83.3Moderate
93.4Moderate
103.4Moderate
113.4Moderate
123.4Moderate
133.4Moderate
143.4Moderate
153.4Moderate
163.4Moderate
173.4Moderate
183.4Moderate
193.5Moderate
203.5Moderate
213.5Moderate
223.5Moderate
233.5Moderate
243.5Moderate
253.5Moderate
263.5Moderate
273.5Moderate
283.5Moderate
293.5Moderate
303.5Moderate
313.5Moderate
Planning a trip in December

Is December a good time to visit San Luis?

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

5.5
Sightseeing
4th-best month of the year
4.9
Beach & pool
5th-best month of the year

December is a reasonable time to visit San Luis for sightseeing.

What to pack for San Luis in December

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

In December, San Luis sees daytime highs around 25°C and nights near 18°C. Pack rain gear. Worth having: light clothes. About 19 days see rain.

rain gearlight clothes

UV index in San Luis 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 Luis peaks around April 9 at about 13 (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 9UV 13Dec 15UV 9
UV index (midday)Level
Jan10Very high
Feb12Extreme
Mar13Extreme
Apr14Extreme
May11Extreme
Jun13Extreme
Jul12Extreme
Aug12Extreme
Sep12Extreme
Oct11Extreme
Nov9Very high
Dec9Very high

Air quality in San Luis 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 Luis is worst in April — around 41 µg/m³ PM2.5 (poor), about 4.7× the cleanest month (December, 9 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecGoodModeratePoorModerateGoodApr 2341 µg/m³Dec 199 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb11Good
Mar16Moderate
Apr41Poor
May40Poor
Jun21Moderate
Jul23Moderate
Aug18Moderate
Sep17Moderate
Oct14Moderate
Nov10Good
Dec9Good
Location & terrain

Where is San Luis?

San Luis sits at 15.1°N, 88.4°W, 734 m above sea level, in Honduras. The nearest listed city is San José de Colinas, 18 km away.

LepaeraSan Antonio de CortésCofradía

Topography around San Luis

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

Within 3 km, the terrain around San Luis has significant variations in elevation — a maximum elevation change of 466 m around an average of 752 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,539 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,817 m.

The land around San Luis is covered by trees (72%) and grassland (25%) within 3 km, trees (73%) and grassland (23%) within 16 km, and trees (72%) and grassland (21%) within 80 km.

3 km
466 m
16 km
1,539 m
80 km
2,817 m
treesgrasslandcroplandartificial surfaceswater
December weather nearby: San José de Colinas 18 km · Atima 22 km · Macuelizo 23 km · Quimistán 25 km · Santa Bárbara 31 km · Lepaera 42 km · San Antonio de Cortés 43 km · Cofradía 43 km

Honduras travel facts

Travel advisory
Level 3
Reconsider Travel
Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 46% of US
price level, 2025
GDP per capita
$3,598
2025
Happiness
6.1 / 10
World Happiness, 2025
Safe drinking water
66%
of population, 2024
Homicide rate
31.4
per 100k, 2023
Road deaths
16.1
per 100k/yr, 2019
Income group
Lower middle
World Bank
English
High
EF EPI 553
Religion
Evangelical 55%Roman Catholic 33%none 10%

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 Luis (15.1269°, -88.4393°, elevation 734 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. 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).