Zacatecoluca weather in October

In October, Zacatecoluca sees average daytime highs of 30°C and overnight lows near 22°C, with 340 mm of rain across 25.2 wet days and about 11.7 hours of daylight. It is the 12th-warmest and 2nd-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 13% of the time in October, and the air most often feels oppressive.

Daylight stretches from about 11 h 54 min at the start of October to 11 h 30 min by month's end. Set against the rest of the year, October is Zacatecoluca's 10th-clearest and 10th-windiest month. For the whole year in context, see Zacatecoluca's year-round climate.

Daytime high
30°
12th warmest
Overnight low
22°
6th coldest
Rainfall
340 mm
25.2 wet days
Daylight
11 h 42 min
5:50 AM – 5:31 PM
Cloud cover
73%
10th clearest
Wind
4 km/h
10th windiest
Solar energy
5.03 kWh/m²
Travel score
3.3
out of 10

Zacatecoluca is city in El Salvador.

Density
123/km²
people per km²
Founded
1852

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

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

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

A typical October day in Zacatecoluca reaches about 30°C in the afternoon and slips back to 22°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 32°C. Set against its neighbours, October runs on par with September and about 1°C cooler than November.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13022
23022
33022
43022
53022
63022
73022
83022
93022
103022
113022
123022
133022
143022
153022
163022
173022
183022
193022
203022
213022
223022
233022
243022
253022
263022
273022
283022
293022
303022
313022

How October really feels in Zacatecoluca

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

Zacatecoluca weather by month

How October compares with the rest of the year at a glance. October is the 12th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan33° / 20°30.911.34.8
Feb33° / 21°41.211.64.3
Mar34° / 22°154.411.93.8
Apr33° / 23°6413.712.33.2
May32° / 23°2962612.62.7
Jun31° / 23°3262612.82.8
Jul31° / 23°23021.412.73.1
Aug31° / 23°30325.312.42.9
Sep30° / 22°37328.212.12.8
Oct30° / 22°34025.211.73.3
Nov31° / 21°7510.511.44.7
Dec32° / 21°92.111.25.2

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 13% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 14% of October, with mostly cloudy or overcast conditions the remaining 73%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11684
21783
31783
41783
51783
61882
71882
81882
91882
101981
111981
121981
131981
142080
152278
162377
172377
182575
192773
202872
213070
223169
233367
243664
253763
264060
274159
284357
294555
304654
314753

Chance of precipitation in October

Any precipitation

Zacatecoluca gets around 340 mm of rain over 25.2 wet days in October. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 81% and peaks near 93% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%100%151015202531
Rain chance (%)
193
292
392
491
590
690
789
889
988
1088
1187
1287
1387
1486
1586
1685
1784
1883
1982
2081
2179
2277
2376
2474
2572
2670
2768
2866
2964
3062
3160

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, October lands in the oppressive band about 88% of days. Sticky, muggy-or-worse air turns up on roughly 99% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
101954
201954
301954
402944
502944
602944
702944
802944
902944
1003934
1103925
1203925
1303925
1404915
1504915
1604906
1705896
1805896
1916876
2017866
2118856
2218856
2329836
24210826
25211816
26311806
27312805
28412795
29413794
30513784
31514783

Wind in October

Winds average 4 km/h in October.

Across October, daily wind ranges from about 4 km/h on the calmest days to 5 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
305calm
315calm

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 54 min at the start of October to 11 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 24 minutes over October. Sunrise moves from 5:48 AM to 5:53 AM, and sunset from 5:41 PM to 5:25 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.95:485:41
211.95:485:40
311.95:485:39
411.85:485:39
511.85:485:38
611.85:485:37
711.85:495:37
811.85:495:36
911.85:495:35
1011.85:495:35
1111.85:495:34
1211.75:495:34
1311.75:495:33
1411.75:495:32
1511.75:505:32
1611.75:505:31
1711.75:505:31
1811.75:505:30
1911.75:505:30
2011.65:515:29
2111.65:515:29
2211.65:515:28
2311.65:515:28
2411.65:515:27
2511.65:525:27
2611.65:525:26
2711.65:525:26
2811.65:535:26
2911.55:535:25
3011.55:535:25
3111.55:535:25

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 5.03 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 5.03 kWh/m² to a high of 6.51 kWh/m² in March across the year — October's 5.03 kWh/m² sits near the bottom.

0246151015202531
Solar energy (kWh/m²)Level
15.0Bright
25.0Bright
35.0Bright
45.0Bright
55.0Bright
65.0Bright
75.0Bright
84.9Bright
94.9Bright
104.9Bright
114.9Bright
124.9Bright
134.9Bright
144.9Bright
154.9Bright
165.0Bright
175.0Bright
185.0Bright
195.0Bright
205.0Bright
215.0Bright
225.1Bright
235.1Bright
245.1Bright
255.1Bright
265.2Bright
275.2Bright
285.2Bright
295.2Bright
305.2Bright
315.3Bright
Planning a trip in October

Hazard calendar for Zacatecoluca

In seasonPeak

In October, Zacatecoluca sits inside its atlantic hurricane and monsoon season. The full year is below, with each hazard's peak months called out.

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

Zacatecoluca'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 October a good time to visit Zacatecoluca?

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

3.3
Sightseeing
6th-best month of the year
4.5
Beach & pool
8th-best month of the year

October is a weaker month for outdoor sightseeing in Zacatecoluca.

What to pack for Zacatecoluca in October

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

In October, Zacatecoluca sees daytime highs around 30°C and nights near 22°C. Pack light clothes and rain gear. Worth having: sun protection. About 25 days see rain.

light clothesrain gearsun protection

Sea temperature near Zacatecoluca in October

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

The sea at the nearest coast (about 31 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 Zacatecoluca in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Zacatecoluca 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 Zacatecoluca in October

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Zacatecoluca 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 Zacatecoluca?

Zacatecoluca sits at 13.5°N, 88.9°W, 220 m above sea level, in El Salvador. The nearest listed city is San Vicente, 17 km away.

San VicenteCojutepequeSan MartínIlopangoSoyapangoSan MarcosSan SalvadorDelgado

Topography around Zacatecoluca

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

Within 3 km, the terrain around Zacatecoluca has significant variations in elevation — a maximum elevation change of 319 m around an average of 210 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 2,166 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,143 m.

The land around Zacatecoluca is covered by trees (55%) and grassland (26%) within 3 km, trees (44%), grassland (33%) and cropland (20%) within 16 km, and trees (42%), water (28%) and grassland (21%) within 80 km.

3 km
319 m
16 km
2,166 m
80 km
2,143 m
treesshrubsgrasslandcroplandartificial surfaceswatermangroves
October weather nearby: San Vicente 17 km · Cojutepeque 24 km · San Martín 31 km · Ilopango 34 km · Soyapango 37 km · San Marcos 38 km · San Salvador 40 km · Delgado 40 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 Zacatecoluca (13.5087°, -88.8702°, elevation 220 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).