San Martín weather in July

In July, San Martín sees average daytime highs of 32°C and overnight lows near 22°C, with 173 mm of rain across 20.4 wet days and about 12.7 hours of daylight. It is the 6th-warmest and 6th-wettest month of the year here.

Day-to-day highs hold fairly steady near 32°C through the month. The sky is clear or mostly clear about 13% of the time in July, and the air most often feels muggy.

Daylight stretches from about 12 h 48 min at the start of July to 12 h 36 min by month's end. Set against the rest of the year, July is San Martín's 7th-clearest and 7th-windiest month. For the whole year in context, see San Martín's year-round climate.

Daytime high
32°
6th warmest
Overnight low
22°
11th coldest
Rainfall
173 mm
20.4 wet days
Daylight
12 h 42 min
5:39 AM – 6:24 PM
Cloud cover
72%
7th clearest
Wind
5 km/h
7th windiest
Solar energy
6.02 kWh/m²
Travel score
3.1
out of 10

San Martín is settlement in Cuscatlan, El Salvador.

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

Temperature in July

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 32°C through the month.

A typical July day in San Martín reaches about 32°C in the afternoon and slips back to 22°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 34°C. Set against its neighbours, July runs about 1°C warmer than June and on par with August.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13122
23122
33122
43122
53122
63122
73122
83122
93122
103122
113222
123222
133222
143222
153222
163222
173222
183222
193222
203222
213222
223222
233222
243222
253222
263222
273222
283222
293222
303222
313222

How July really feels in San Martín

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

San Martín weather by month

How July compares with the rest of the year at a glance. July is the 6th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan32° / 20°30.711.35.1
Feb33° / 20°30.911.54.5
Mar34° / 21°13411.93.9
Apr33° / 22°5612.212.33.3
May32° / 22°23925.312.62.7
Jun31° / 22°26025.512.82.8
Jul32° / 22°17320.412.73.1
Aug31° / 22°22324.212.52.9
Sep30° / 22°29427.612.12.8
Oct30° / 21°23523.711.73.4
Nov31° / 20°498.811.44.9
Dec32° / 20°81.711.25.4

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

Beyond those clear spells, partly cloudy skies cover about 19% of July, with mostly cloudy or overcast conditions the remaining 68%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12377
22476
32476
42575
52575
62773
72872
82872
92971
103070
113070
123169
133169
143268
153268
163367
173367
183466
193565
203565
213664
223664
233664
243664
253664
263565
273565
283565
293664
303565
313664

Chance of precipitation in July

Any precipitation

San Martín gets around 173 mm of rain over 20.4 wet days in July. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 66% and peaks near 73% on the wettest days.

0%20%40%60%80%151015202531
Rain chance (%)
173
272
371
471
570
670
769
869
968
1068
1167
1266
1366
1465
1565
1664
1764
1863
1963
2063
2163
2263
2363
2463
2564
2664
2764
2865
2966
3066
3167

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, July lands in the muggy band about 59% of days. Sticky, muggy-or-worse air turns up on roughly 98% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)
124454
224553
324751
424850
524949
625147
725246
825345
925543
1025642
1125741
1225840
1325840
1425939
1526038
1626038
1726137
1816336
1916435
2016435
2116534
2216534
2316633
2416633
2516633
2616633
2716633
2816633
2916534
3016534
3116534

Wind in July

Winds average 5 km/h in July.

Across July, 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
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
314calm

Sunrise & sunset in July

DaylightNight

Daylight runs from about 12 h 48 min at the start of July to 12 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 12 minutes over July. Sunrise moves from 5:35 AM to 5:43 AM, and sunset from 6:23 PM to 6:21 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.85:356:23
212.85:356:23
312.85:356:23
412.85:366:23
512.85:366:24
612.85:366:24
712.85:366:24
812.85:376:24
912.85:376:24
1012.85:376:24
1112.85:386:24
1212.85:386:24
1312.85:386:24
1412.85:386:24
1512.75:396:24
1612.75:396:24
1712.75:396:23
1812.75:406:23
1912.75:406:23
2012.75:406:23
2112.75:406:23
2212.75:416:23
2312.75:416:23
2412.75:416:22
2512.75:416:22
2612.75:426:22
2712.75:426:22
2812.75:426:21
2912.65:426:21
3012.65:436:21
3112.65:436:21

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 6.02 kWh/m².

For context, solar energy here swings from a low near 4.79 kWh/m² to a high of 6.28 kWh/m² in March across the year — July's 6.02 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.7Bright
25.7Bright
35.8Bright
45.8Bright
55.8Bright
65.8Bright
75.8Bright
85.9Bright
95.9Bright
105.9Bright
116.0Bright
126.0Bright
136.0Intense
146.0Intense
156.0Intense
166.1Intense
176.1Intense
186.1Intense
196.1Intense
206.1Intense
216.1Intense
226.1Intense
236.1Intense
246.1Intense
256.1Intense
266.1Intense
276.1Intense
286.1Intense
296.1Intense
306.1Intense
316.1Intense
Planning a trip in July

Hazard calendar for San Martín

In seasonPeak

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

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

San Martín'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 July a good time to visit San Martín?

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

3.1
Sightseeing
8th-best month of the year
4.8
Beach & pool
7th-best month of the year

July is a weaker month for outdoor sightseeing in San Martín.

What to pack for San Martín in July

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

In July, San Martín sees daytime highs around 32°C and nights near 22°C. Pack light clothes, rain gear and sun protection. About 20 days see rain.

light clothesrain gearsun protection

Sea temperature near San Martín in July

The nearest coast averages about 30°C in July — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 51 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 San Martín in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July peaks around 12 (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 Martín 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 San Martín in July

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in San Martín is worst in April — around 43 µg/m³ PM2.5 (poor), about 1.6× the cleanest month (September, 26 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModeratePoorApr 1942 µg/m³Sep 1026 µg/m³
PM2.5 (µg/m³)Level
Jan34Moderate
Feb35Moderate
Mar35Poor
Apr43Poor
May40Poor
Jun27Moderate
Jul30Moderate
Aug27Moderate
Sep26Moderate
Oct29Moderate
Nov35Moderate
Dec36Poor
Location & terrain

Where is San Martín?

San Martín sits at 13.8°N, 88.9°W, 622 m above sea level, in El Salvador. The nearest listed city is Cojutepeque, 7.0 km away.

SuchitotoSan VicenteIlopangoSoyapangoDelgadoApopaChalatenango

Topography around San Martín

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

Within 3 km, the terrain around San Martín has significant variations in elevation — a maximum elevation change of 399 m around an average of 638 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 826 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,703 m.

The land around San Martín is covered by trees (64%) and grassland (32%) within 3 km, trees (61%) and grassland (31%) within 16 km, and trees (54%) and grassland (23%) within 80 km.

3 km
399 m
16 km
826 m
80 km
2,703 m
treesshrubsgrasslandcroplandartificial surfaceswatermangroves
July weather nearby: Cojutepeque 7.0 km · Suchitoto 21 km · San Vicente 21 km · Ilopango 23 km · Soyapango 25 km · Delgado 28 km · Apopa 28 km · Chalatenango 29 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 San Martín (13.7833°, -88.9167°, elevation 622 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).