Acajutla weather in January

In January, Acajutla sees average daytime highs of 30°C and overnight lows near 24°C, with 3 mm of rain across 0.7 wet days and about 11.3 hours of daylight. It is the 4th-warmest and 11th-wettest month of the year here.

Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 88% of the time in January, and the air most often feels muggy.

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 Acajutla's 1st-clearest and 1st-windiest month. For the whole year in context, see Acajutla's year-round climate.

Daytime high
30°
4th warmest
Overnight low
24°
1st coldest
Rainfall
3 mm
0.7 wet days
Daylight
11 h 18 min
6:30 AM – 5:47 PM
Cloud cover
17%
1st clearest
Wind
11 km/h
1st windiest
Solar energy
5.61 kWh/m²
Travel score
7.1
out of 10

Acajutla is district in Western Sonsonate, El Salvador.

Density
137/km²
people per km²

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

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 30°C through the month.

A typical January day in Acajutla reaches about 30°C in the afternoon and slips back to 24°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 31°C. Set against its neighbours, January runs on par with December and on par with February.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13025
23025
33024
43024
53024
63024
73024
83024
93024
103024
113024
122924
132924
142924
152924
162924
172924
182924
192924
202924
212924
222924
232924
242924
252924
262924
272924
282924
292924
302924
313024

How January really feels in Acajutla

Once humidity and wind are folded in, January 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

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

Acajutla weather by month

How January compares with the rest of the year at a glance. January is the 4th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 24°30.711.37.1
Feb30° / 25°30.711.56.9
Mar30° / 25°113.111.96.4
Apr30° / 26°379.912.35.2
May29° / 26°20423.712.63.7
Jun29° / 26°25526.412.83.2
Jul29° / 26°22425.512.73.4
Aug29° / 26°25426.912.53.3
Sep29° / 25°32828.312.13.2
Oct29° / 25°30925.211.73.7
Nov29° / 25°6710.511.45.5
Dec30° / 25°71.911.26.8

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 88% of the time in January, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 6% of January, with mostly cloudy or overcast conditions the remaining 7%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1928
2928
3928
4928
5928
6937
7937
8937
9937
10937
11946
12955
13955
14955
15955
16955
17955
18955
19946
20946
21946
22937
23937
24937
25937
26937
27937
28937
29937
30937
31937

Chance of precipitation in January

Any precipitation

Acajutla gets around 3 mm of rain over 0.7 wet days in January. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 2% and peaks near 3% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
12
22
32
42
52
62
72
82
92
102
112
122
132
142
153
163
173
183
193
203
213
223
233
242
252
262
272
282
292
302
312

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, January lands in the muggy band about 49% of days. Sticky, muggy-or-worse air turns up on roughly 81% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
104134736
204134736
304134636
405134636
515134635
615144635
715144634
815144634
915144733
1016144732
1116144831
1216144830
1316144930
1417144929
1517145029
1617145029
1717145029
1817145029
1917145029
2017145029
2116145029
2206145129
2306135130
2405135230
2505135131
2605125132
2704125232
2804125133
2904115233
3004115233
3103115333

Wind in January

Winds average 11 km/h in January, the windiest month of the year.

Across January, daily wind ranges from about 11 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm
3111calm

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 6:26 AM to 6:31 AM, and sunset from 5:39 PM to 5:55 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.26:265:39
211.26:275:39
311.26:275:40
411.26:275:40
511.26:285:41
611.26:285:41
711.26:285:42
811.26:285:43
911.26:295:43
1011.26:295:44
1111.36:295:44
1211.36:295:45
1311.36:305:45
1411.36:305:46
1511.36:305:46
1611.36:305:47
1711.36:305:47
1811.36:315:48
1911.36:315:49
2011.36:315:49
2111.36:315:50
2211.36:315:50
2311.36:315:51
2411.36:315:51
2511.36:315:52
2611.46:315:52
2711.46:315:53
2811.46:315:53
2911.46:315:54
3011.46:315:54
3111.46:315:55

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 5.61 kWh/m².

For context, solar energy here swings from a low near 4.96 kWh/m² to a high of 6.57 kWh/m² in April across the year — January's 5.61 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
105.5Bright
115.6Bright
125.6Bright
135.6Bright
145.6Bright
155.6Bright
165.6Bright
175.6Bright
185.7Bright
195.7Bright
205.7Bright
215.7Bright
225.7Bright
235.7Bright
245.7Bright
255.8Bright
265.8Bright
275.8Bright
285.8Bright
295.8Bright
305.8Bright
315.8Bright
Planning a trip in January

Hazard calendar for Acajutla

In seasonPeak

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

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

Acajutla'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 Acajutla?

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

7.1
Sightseeing
1st-best month of the year
9.3
Beach & pool
1st-best month of the year

January is one of the better times to visit Acajutla for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Acajutla in January

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

In January, Acajutla sees daytime highs around 30°C and nights near 24°C. Pack light clothes. Worth having: sun protection.

light clothessun protection

Sea temperature near Acajutla 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 offshore 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
Apr30Tropical
May30Tropical
Jun30Tropical
Jul30Tropical
Aug30Tropical
Sep30Tropical
Oct29Tropical
Nov29Tropical
Dec29Tropical

UV index in Acajutla in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January 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 Acajutla peaks around March 24 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 23 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 highMar 24UV 13Nov 23UV 9
UV index (midday)Level
Jan9Very high
Feb12Extreme
Mar13Extreme
Apr13Extreme
May12Extreme
Jun12Extreme
Jul12Extreme
Aug11Extreme
Sep11Extreme
Oct11Extreme
Nov9Very high
Dec9Very high

Air quality in Acajutla 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 Acajutla is worst in May — around 31 µg/m³ PM2.5 (moderate), about 2.3× the cleanest month (January, 14 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateMay 1230 µg/m³Jan 1914 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb14Moderate
Mar17Moderate
Apr28Moderate
May31Moderate
Jun21Moderate
Jul23Moderate
Aug21Moderate
Sep20Moderate
Oct19Moderate
Nov19Moderate
Dec15Moderate
Location & terrain

Where is Acajutla?

Acajutla sits at 13.6°N, 89.8°W, 26 m above sea level, in El Salvador. The nearest listed city is Sonsonate, 18 km away.

SonsonateSonzacateIzalcoAhuachapanChalchuapaSanta AnaLa LibertadSanta Tecla

Topography around Acajutla

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

Within 3 km, the terrain around Acajutla has only modest variations in elevation — a maximum elevation change of 63 m around an average of 22 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 358 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,351 m.

The land around Acajutla is covered by trees (29%), water (26%) and grassland (23%) within 3 km, water (45%), trees (24%) and grassland (22%) within 16 km, and trees (37%) and water (37%) within 80 km.

3 km
63 m
16 km
358 m
80 km
2,351 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwatermangroves
January weather nearby: Sonsonate 18 km · Sonzacate 20 km · Izalco 24 km · Ahuachapan 37 km · Chalchuapa 47 km · Santa Ana 53 km · La Libertad 56 km · Santa Tecla 60 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 Acajutla (13.5928°, -89.8275°, elevation 26 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).