Santiago de Tolú weather in July

In July, Santiago de Tolú sees average daytime highs of 31°C and overnight lows near 25°C, with 228 mm of rain across 28 wet days and about 12.5 hours of daylight. It is the 5th-warmest and 6th-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 2% of the time in July, and the air most often feels miserable.

Daylight stretches from about 12 h 30 min at the start of July to 12 h 24 min by month's end. Set against the rest of the year, July is Santiago de Tolú's 8th-clearest and 5th-windiest month. For the whole year in context, see Santiago de Tolú's year-round climate.

Daytime high
31°
5th warmest
Overnight low
25°
7th coldest
Rainfall
228 mm
28 wet days
Daylight
12 h 30 min
5:53 AM – 6:23 PM
Cloud cover
90%
8th clearest
Wind
7 km/h
5th windiest
Solar energy
5.18 kWh/m²
Travel score
2.5
out of 10

Temperature in July

Average highAverage lowShaded bands: 10–90% of days

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

A typical July day in Santiago de Tolú reaches about 31°C in the afternoon and slips back to 25°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 33°C. Set against its neighbours, July runs on par with June and on par with August.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13125
23125
33125
43125
53125
63125
73125
83125
93125
103125
113125
123125
133125
143125
153125
163125
173125
183125
193125
203125
213125
223125
233125
243125
253125
263125
273125
283125
293125
303125
313125

How July really feels in Santiago de Tolú

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.

Santiago de Tolú weather by month

How July compares with the rest of the year at a glance. July is the 5th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan32° / 24°277.811.54.6
Feb32° / 25°317.811.74.2
Mar32° / 25°6615.511.93.5
Apr31° / 25°16725.612.22.7
May31° / 25°26329.512.42.4
Jun31° / 25°24928.112.52.4
Jul31° / 25°2282812.52.5
Aug31° / 25°2392912.32.5
Sep30° / 24°24029.112.12.5
Oct30° / 24°24029.811.82.6
Nov30° / 24°18027.211.62.8
Dec31° / 24°871811.53.7

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 2% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 5% of July, with mostly cloudy or overcast conditions the remaining 94%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1892
2892
3892
4892
5892
6892
7892
8793
9793
10793
11793
12793
13793
14793
15793
16793
17793
18793
19793
20793
21694
22595
23595
24595
25595
26595
27496
28496
29496
30496
31496

Chance of precipitation in July

Any precipitation

Santiago de Tolú gets around 228 mm of rain over 28 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 90% and peaks near 91% on the wettest days.

0%20%40%60%80%100%151015202531
Rain chance (%)
190
290
390
490
590
690
790
890
990
1090
1190
1290
1390
1490
1590
1690
1790
1890
1991
2091
2191
2291
2391
2491
2591
2691
2791
2891
2991
3091
3191

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, July lands in the miserable band about 85% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
11486
21585
31585
41585
51585
61585
71585
81585
91585
101585
111585
121585
131585
141585
151585
161585
171585
181585
191585
201585
211585
221585
231585
241684
251684
261684
271585
281585
291585
301585
311585

Wind in July

Winds average 7 km/h in July.

Across July, daily wind ranges from about 7 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in July

DaylightNight

Daylight runs from about 12 h 30 min at the start of July to 12 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over July. Sunrise moves from 5:49 AM to 5:56 AM, and sunset from 6:22 PM to 6:21 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.55:496:22
212.55:496:22
312.55:506:22
412.55:506:23
512.55:506:23
612.55:506:23
712.55:516:23
812.55:516:23
912.55:516:23
1012.55:516:23
1112.55:526:23
1212.55:526:23
1312.55:526:23
1412.55:526:23
1512.55:536:23
1612.55:536:23
1712.55:536:23
1812.55:536:23
1912.55:536:23
2012.55:546:23
2112.55:546:23
2212.55:546:23
2312.55:546:23
2412.55:546:23
2512.55:556:22
2612.55:556:22
2712.55:556:22
2812.45:556:22
2912.45:556:22
3012.45:556:22
3112.45:566:21

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 5.18 kWh/m².

For context, solar energy here swings from a low near 4.49 kWh/m² to a high of 5.9 kWh/m² in March across the year — July's 5.18 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.1Bright
25.1Bright
35.1Bright
45.1Bright
55.1Bright
65.1Bright
75.1Bright
85.1Bright
95.2Bright
105.2Bright
115.2Bright
125.2Bright
135.2Bright
145.2Bright
155.2Bright
165.2Bright
175.2Bright
185.2Bright
195.2Bright
205.2Bright
215.2Bright
225.2Bright
235.2Bright
245.2Bright
255.2Bright
265.2Bright
275.2Bright
285.2Bright
295.2Bright
305.2Bright
315.2Bright
Planning a trip in July

Is July a good time to visit Santiago de Tolú?

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

2.5
Sightseeing
8th-best month of the year
3.7
Beach & pool
7th-best month of the year

July is a weaker month for outdoor sightseeing in Santiago de Tolú.

What to pack for Santiago de Tolú in July

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

In July, Santiago de Tolú sees daytime highs around 31°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 28 days see rain.

light clothesrain gearsun protection

Sea temperature near Santiago de Tolú 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 offshore is warmest in July at about 30°C and coldest in March 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
Jan29Tropical
Feb28Tropical
Mar28Tropical
Apr29Tropical
May29Tropical
Jun30Tropical
Jul30Tropical
Aug30Tropical
Sep30Tropical
Oct29Tropical
Nov29Tropical
Dec29Tropical

UV index in Santiago de Tolú in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July 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 Tolú peaks around June 10 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 13 at about 10 (very high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highJun 10UV 13Dec 13UV 10
UV index (midday)Level
Jan11Extreme
Feb12Extreme
Mar12Extreme
Apr12Extreme
May13Extreme
Jun13Extreme
Jul11Extreme
Aug12Extreme
Sep12Extreme
Oct12Extreme
Nov10Very high
Dec10Very high

Air quality in Santiago de Tolú 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 Santiago de Tolú is worst in July — around 26 µg/m³ PM2.5 (moderate), about 2.3× the cleanest month (November, 11 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateMar 2325 µg/m³Nov 1111 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb18Moderate
Mar26Moderate
Apr25Moderate
May25Moderate
Jun23Moderate
Jul26Moderate
Aug20Moderate
Sep14Moderate
Oct12Good
Nov11Good
Dec14Moderate
Location & terrain

Where is Santiago de Tolú?

Santiago de Tolú sits at 9.5°N, 75.6°W, 10 m above sea level, in Colombia. The nearest listed city is Tolú Viejo, 18 km away.

Topography around Santiago de Tolú

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

Within 3 km, the terrain around Santiago de Tolú has only modest variations in elevation — a maximum elevation change of 19 m around an average of 4 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 156 m; within 80 km, large variations in elevation — a maximum elevation change of 810 m.

The land around Santiago de Tolú is covered by grassland (44%) and water (42%) within 3 km, grassland (43%) and water (43%) within 16 km, and grassland (47%), water (28%) and trees (20%) within 80 km.

3 km
19 m
16 km
156 m
80 km
810 m
treesgrasslandartificial surfaceswaterwetlandmangroves
July weather nearby: Tolú Viejo 18 km · San Onofre 24 km · San Antero 26 km · Sincelejo 32 km · Momil 33 km · Corozal 39 km · Lorica 41 km · Sampués 44 km

Colombia travel facts

Travel advisory
Level 3
Reconsider Travel
Power plugs
Type A / B
120 / 240 V · 60 Hz
Prices
≈ 38% of US
price level, 2025
GDP per capita
$8,562
2025
Happiness
6.0 / 10
World Happiness, 2025
Safe drinking water
74%
of population, 2024
Homicide rate
24.9
per 100k, 2023
Road deaths
15.4
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Low
EF EPI 480
Religion
Roman Catholic 64%Protestant 17%none 14%atheist 1%

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 Tolú (9.5239°, -75.5814°, elevation 10 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. 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).