Santiago de María weather in October

In October, Santiago de María sees average daytime highs of 31°C and overnight lows near 23°C, with 303 mm of rain across 24.4 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 31°C through the month. The sky is clear or mostly clear about 14% 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 Santiago de María's 10th-clearest and 12th-windiest month. For the whole year in context, see Santiago de María's year-round climate.

Daytime high
31°
12th warmest
Overnight low
23°
5th coldest
Rainfall
303 mm
24.4 wet days
Daylight
11 h 42 min
5:48 AM – 5:30 PM
Cloud cover
72%
10th clearest
Wind
4 km/h
12th windiest
Solar energy
5.11 kWh/m²
Travel score
3.1
out of 10

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 31°C through the month.

A typical October day in Santiago de María reaches about 31°C in the afternoon and slips back to 23°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 33°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)
13123
23123
33123
43123
53123
63123
73123
83123
93123
103123
113123
123123
133123
143123
153123
163123
173123
183123
193123
203123
213123
223123
233123
243122
253122
263122
273122
283122
293122
303122
313122

How October really feels in Santiago de María

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.

Santiago de María 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
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 October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 14% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 15% of October, with mostly cloudy or overcast conditions the remaining 70%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11882
21981
31981
42080
52080
62080
72179
82179
92179
102179
112278
122377
132476
142476
152476
162674
172773
182872
193070
203169
213367
223565
233664
243862
254060
264258
274456
284456
294753
304951
314951

Chance of precipitation in October

Any precipitation

Santiago de María gets around 303 mm of rain over 24.4 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 79% and peaks near 91% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%100%151015202531
Rain chance (%)
191
290
389
489
588
688
787
887
986
1086
1185
1285
1385
1484
1584
1683
1782
1881
1980
2078
2176
2275
2373
2471
2569
2667
2765
2863
2960
3058
3156

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 77% of days. Sticky, muggy-or-worse air turns up on roughly 99% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1018217
2018217
3018217
4018118
5018118
6028018
7028018
8028018
9028018
10028018
11037918
12037918
13037918
14037918
15047818
16047818
17047818
18057718
19157717
20167617
21177517
22177517
23287317
24297316
25297316
263107116
273107215
284117114
294117114
304127113
315127112

Wind in October

Winds average 4 km/h in October, the calmest month.

Across October, 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 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 5:46 AM to 5:52 AM, and sunset from 5:39 PM to 5:23 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.95:465:39
211.95:465:39
311.95:475:38
411.85:475:37
511.85:475:37
611.85:475:36
711.85:475:35
811.85:475:35
911.85:475:34
1011.85:475:33
1111.85:475:33
1211.75:475:32
1311.75:485:31
1411.75:485:31
1511.75:485:30
1611.75:485:30
1711.75:485:29
1811.75:485:29
1911.75:495:28
2011.65:495:28
2111.65:495:27
2211.65:495:27
2311.65:505:26
2411.65:505:26
2511.65:505:25
2611.65:505:25
2711.65:515:24
2811.65:515:24
2911.55:515:24
3011.55:515:23
3111.55:525:23

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 5.11 kWh/m² — the year's lowest.

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 — October's 5.11 kWh/m² sits near the bottom.

0246151015202531
Solar energy (kWh/m²)Level
15.1Bright
25.1Bright
35.1Bright
45.1Bright
55.1Bright
65.1Bright
75.0Bright
85.0Bright
95.0Bright
105.0Bright
115.0Bright
125.0Bright
135.0Bright
145.0Bright
155.0Bright
165.0Bright
175.0Bright
185.1Bright
195.1Bright
205.1Bright
215.1Bright
225.1Bright
235.2Bright
245.2Bright
255.2Bright
265.2Bright
275.2Bright
285.3Bright
295.3Bright
305.3Bright
315.3Bright
Planning a trip in October

Hazard calendar for Santiago de María

In seasonPeak

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

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 October a good time to visit Santiago de María?

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

3.1
Sightseeing
5th-best month of the year
4.5
Beach & pool
8th-best month of the year

October is a weaker month for outdoor sightseeing in Santiago de María.

What to pack for Santiago de María in October

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

In October, Santiago de María sees daytime highs around 31°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 24 days see rain.

light clothesrain gearsun protection

Sea temperature near Santiago de María 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 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 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 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 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 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
October 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).