Santiago de María weather in January

In January, Santiago de María sees average daytime highs of 34°C and overnight lows near 21°C, with 1 mm of rain across 0.3 wet days and about 11.3 hours of daylight. It is the 4th-warmest and 12th-wettest month of the year here.

Day-to-day highs hold fairly steady near 34°C through the month. The sky is clear or mostly clear about 82% of the time in January, and the air most often feels humid.

Daylight stretches from about 11 h 12 min at the start of January to 11 h 24 min by month's end. Set against the rest of the year, January is Santiago de María's 1st-clearest and 1st-windiest month. For the whole year in context, see Santiago de María's year-round climate.

Daytime high
34°
4th warmest
Overnight low
21°
2nd coldest
Rainfall
1 mm
0.3 wet days
Daylight
11 h 18 min
6:25 AM – 5:42 PM
Cloud cover
24%
1st clearest
Wind
6 km/h
1st windiest
Solar energy
5.63 kWh/m²
Travel score
4.0
out of 10

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 34°C through the month.

A typical January day in Santiago de María reaches about 34°C in the afternoon and slips back to 21°C overnight — a 13°C spread between the day's warmth and the night's chill. On most days the high lands between 32°C and 36°C. Set against its neighbours, January runs about 1°C warmer than December and about 1°C cooler than February.

15°20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13421
23421
33421
43421
53421
63421
73421
83421
93421
103421
113421
123421
133421
143421
153421
163421
173421
183421
193421
203421
213421
223421
233421
243421
253421
263421
273421
283421
293421
303421
313521

How January really feels in Santiago de María

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

Santiago de María weather by month

How January compares with the rest of the year at a glance. January is the 4th-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan34° / 21°10.311.34.0
Feb35° / 22°20.311.63.4
Mar35° / 23°81.911.92.9
Apr35° / 24°399.312.32.6
May33° / 24°23223.312.62.3
Jun32° / 23°28924.512.82.6
Jul33° / 23°20019.912.72.8
Aug32° / 23°26323.512.42.6
Sep31° / 23°33027.112.12.6
Oct31° / 23°30324.411.73.1
Nov32° / 22°629.111.44.4
Dec33° / 21°51.411.24.5

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 82% of the time in January, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 10% of January, with mostly cloudy or overcast conditions the remaining 8%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18911
28911
38911
48911
58911
68911
78911
89010
99010
109010
11919
12919
13928
14928
15928
16937
17937
18937
19937
20937
21937
22937
23937
24937
25937
26937
27937
28937
29937
30937
31937

Chance of precipitation in January

Any precipitation

Santiago de María gets around 1 mm of rain over 0.3 wet days in January, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 1% and peaks near 3% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
13
23
33
42
52
62
72
82
92
101
111
121
131
141
151
161
171
181
191
201
210
220
230
240
250
260
270
280
290
300
310

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, January lands in the humid band about 47% of days. Sticky, muggy-or-worse air turns up on roughly 33% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
121244384
231244374
331244373
431345363
531345363
641345353
741445352
841446342
941446332
1051546332
1151547321
1251647311
1351648301
1451648301
1551748291
1651748291
1751848291
1851848281
1951848281
2051948281
2141948281
2241948281
2341848291
2441848291
2541849291
2641749291
2731749291
2831650301
2931650301
3031650301
3131650301

Wind in January

Winds average 6 km/h in January, the windiest month of the year.

Across January, daily wind ranges from about 6 km/h on the calmest days to 6 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
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 11 h 12 min at the start of January to 11 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 12 minutes over January. Sunrise moves from 6:20 AM to 6:25 AM, and sunset from 5:34 PM to 5:49 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.26:205:34
211.26:215:34
311.26:215:35
411.26:225:35
511.26:225:36
611.26:225:36
711.26:235:37
811.26:235:37
911.26:235:38
1011.36:235:38
1111.36:245:39
1211.36:245:40
1311.36:245:40
1411.36:245:41
1511.36:245:41
1611.36:255:42
1711.36:255:42
1811.36:255:43
1911.36:255:43
2011.36:255:44
2111.36:255:44
2211.36:255:45
2311.36:255:45
2411.36:255:46
2511.36:255:46
2611.46:255:47
2711.46:255:47
2811.46:255:48
2911.46:255:48
3011.46:255:49
3111.46:255:49

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 5.63 kWh/m².

For context, solar energy here swings from a low near 5.11 kWh/m² to a high of 6.61 kWh/m² in March across the year — January's 5.63 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.5Bright
25.5Bright
35.5Bright
45.5Bright
55.5Bright
65.5Bright
75.5Bright
85.5Bright
95.5Bright
105.6Bright
115.6Bright
125.6Bright
135.6Bright
145.6Bright
155.6Bright
165.6Bright
175.7Bright
185.7Bright
195.7Bright
205.7Bright
215.7Bright
225.7Bright
235.8Bright
245.8Bright
255.8Bright
265.8Bright
275.8Bright
285.8Bright
295.9Bright
305.9Bright
315.9Bright
Planning a trip in January

Hazard calendar for Santiago de María

In seasonPeak

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

Santiago de María sits in the Atlantic hurricane belt; the season peaks August–October.

Santiago de María'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 January a good time to visit Santiago de María?

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

4.0
Sightseeing
3rd-best month of the year
7.8
Beach & pool
2nd-best month of the year

January is a reasonable time to visit Santiago de María for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Santiago de María in January

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

In January, Santiago de María sees daytime highs around 34°C and nights near 21°C. Pack light clothes. Worth having: sun protection.

light clothessun protection

Sea temperature near Santiago de María in January

The nearest coast averages about 28°C in January — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 41 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
Jan28Warm
Feb28Tropical
Mar28Tropical
Apr29Tropical
May30Tropical
Jun30Tropical
Jul30Tropical
Aug30Tropical
Sep30Tropical
Oct29Tropical
Nov29Tropical
Dec28Tropical

UV index in Santiago de María in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Santiago de María peaks around April 10 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 14 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 14UV 9
UV index (midday)Level
Jan10Extreme
Feb13Extreme
Mar13Extreme
Apr13Extreme
May12Extreme
Jun13Extreme
Jul12Extreme
Aug12Extreme
Sep12Extreme
Oct11Extreme
Nov9Very high
Dec9Very high

Air quality in Santiago de María in January

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Santiago de María 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 Santiago de María?

Santiago de María sits at 13.5°N, 88.5°W, 896 m above sea level, in El Salvador. The nearest listed city is Usulután, 16 km away.

UsulutánSan Rafael OrientePuerto El TriunfoSan MiguelSan VicenteZacatecolucaSan Francisco GoteraSensuntepeque

Topography around Santiago de María

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

Within 3 km, the terrain around Santiago de María has large variations in elevation — a maximum elevation change of 781 m around an average of 946 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,610 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,143 m.

The land around Santiago de María is covered by trees (91%) within 3 km, trees (67%) and grassland (29%) within 16 km, and trees (45%), water (27%) and grassland (21%) within 80 km.

3 km
781 m
16 km
1,610 m
80 km
2,143 m
treesshrubsgrasslandcroplandartificial surfaceswatermangroves
January weather nearby: Usulután 16 km · San Rafael Oriente 17 km · Puerto El Triunfo 24 km · San Miguel 31 km · San Vicente 39 km · Zacatecoluca 44 km · San Francisco Gotera 46 km · Sensuntepeque 47 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 Santiago de María (13.4833°, -88.4667°, elevation 896 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).