Mitú weather in September

In September, Mitú sees average daytime highs of 30°C and overnight lows near 22°C, with 175 mm of rain across 27 wet days and about 12 hours of daylight. It is the 6th-warmest and 10th-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 3% of the time in September, and the air most often feels oppressive.

Daylight stretches from about 12 hours at the start of September to 12 hours by month's end. Set against the rest of the year, September is Mitú's 3rd-clearest and 9th-windiest month. For the whole year in context, see Mitú's year-round climate.

Daytime high
30°
6th warmest
Overnight low
22°
4th coldest
Rainfall
175 mm
27 wet days
Daylight
12 hours
5:35 AM – 5:35 PM
Cloud cover
77%
3rd clearest
Wind
4 km/h
9th windiest
Solar energy
5.02 kWh/m²
Travel score
3.0
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

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

A typical September day in Mitú 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 28°C and 32°C. Set against its neighbours, September runs about 1°C warmer than August and on par with October.

20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
12922
22922
32922
42922
52922
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

How September really feels in Mitú

Once humidity and wind are folded in, September averages 30 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
30
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in September is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Mitú weather by month

How September compares with the rest of the year at a glance. September is the 6th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 22°14020.611.93.7
Feb30° / 22°15720.1123.4
Mar30° / 22°22327.1123.0
Apr29° / 22°29428.2122.9
May29° / 22°3533012.13.0
Jun28° / 22°3302912.13.2
Jul28° / 21°27029.712.13.4
Aug29° / 21°19327.7123.3
Sep30° / 22°17527123.0
Oct30° / 22°18226.9123.0
Nov30° / 22°19027.111.92.9
Dec29° / 22°18825.611.93.3

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 3% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 17% of September, with mostly cloudy or overcast conditions the remaining 79%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
12377
22377
32377
42377
52377
62377
72278
82278
92278
102080
112080
121981
131981
141981
151981
161981
171981
181981
191981
201981
212080
222080
232080
242080
252080
262179
272179
282080
292080
302080

Chance of precipitation in September

Any precipitation

Mitú gets around 175 mm of rain over 27 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 89% and peaks near 90% on the wettest days.

0%20%40%60%80%100%151015202530
Rain chance (%)
190
290
390
490
590
690
790
890
990
1090
1190
1289
1389
1489
1589
1689
1789
1889
1989
2089
2189
2289
2389
2489
2589
2688
2788
2888
2988
3088

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the oppressive band about 98% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Muggy (%)Oppressive (%)Miserable (%)
11990
201000
301000
401000
501000
60991
70991
80991
90991
100991
110991
120991
130991
140991
150991
160982
170982
180982
190982
200982
210982
220973
230973
240973
250964
260964
270964
280964
290964
300955

Wind in September

Winds average 4 km/h in September.

Across September, 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.

0246810151015202530
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

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 hours at the start of September to 12 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 0 minutes over September. Sunrise moves from 5:40 AM to 5:31 AM, and sunset from 5:41 PM to 5:30 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.05:405:41
212.05:405:41
312.05:395:41
412.05:395:40
512.05:395:40
612.05:385:39
712.05:385:39
812.05:385:39
912.05:375:38
1012.05:375:38
1112.05:375:38
1212.05:365:37
1312.05:365:37
1412.05:365:36
1512.05:355:36
1612.05:355:35
1712.05:355:35
1812.05:345:35
1912.05:345:34
2012.05:345:34
2112.05:335:33
2212.05:335:33
2312.05:335:33
2412.05:325:32
2512.05:325:32
2612.05:325:31
2712.05:315:31
2812.05:315:31
2912.05:315:30
3012.05:315:30

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.02 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 3.56 kWh/m² to a high of 5.02 kWh/m² in September across the year — September's 5.02 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
14.8Bright
24.9Bright
34.9Bright
44.9Bright
54.9Bright
64.9Bright
74.9Bright
85.0Bright
95.0Bright
105.0Bright
115.0Bright
125.0Bright
135.0Bright
145.0Bright
155.0Bright
165.0Bright
175.0Bright
185.0Bright
195.0Bright
205.0Bright
215.1Bright
225.1Bright
235.1Bright
245.1Bright
255.1Bright
265.1Bright
275.1Bright
285.1Bright
295.1Bright
305.1Bright
Planning a trip in September

Is September a good time to visit Mitú?

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

3.0
Sightseeing
7th-best month of the year
4.1
Beach & pool
4th-best month of the year

September is a weaker month for outdoor sightseeing in Mitú.

What to pack for Mitú in September

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

In September, Mitú sees daytime highs around 30°C and nights near 22°C. Pack light clothes and rain gear. Worth having: sun protection. About 27 days see rain.

light clothesrain gearsun protection

UV index in Mitú in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September 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 Mitú peaks around February 22 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near August 10 at about 11 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeFeb 22UV 14Aug 10UV 11
UV index (midday)Level
Jan14Extreme
Feb14Extreme
Mar14Extreme
Apr12Extreme
May13Extreme
Jun12Extreme
Jul11Extreme
Aug11Extreme
Sep12Extreme
Oct13Extreme
Nov12Extreme
Dec11Extreme

Air quality in Mitú in September

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Mitú is worst in March — around 19 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (June, 9 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodMar 1619 µg/m³Jun 219 µg/m³
PM2.5 (µg/m³)Level
Jan12Moderate
Feb16Moderate
Mar19Moderate
Apr16Moderate
May11Good
Jun9Good
Jul9Good
Aug11Good
Sep10Good
Oct10Good
Nov11Good
Dec11Good
Location & terrain

Where is Mitú?

Mitú sits at 1.3°N, 70.2°W, 174 m above sea level, in Colombia. The nearest listed city is San José del Guaviare, 304 km away.

San José del GuaviareCumariboSão Gabriel da CachoeiraPuerto LópezGranadaSan MartínVillanuevaVillavicencio

Topography around Mitú

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

Within 3 km, the terrain around Mitú has only modest variations in elevation — a maximum elevation change of 37 m around an average of 184 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 334 m; within 80 km, significant variations in elevation — a maximum elevation change of 385 m.

The land around Mitú is covered by trees (78%) within 3 km, trees (96%) within 16 km, and trees (99%) within 80 km.

3 km
37 m
16 km
334 m
80 km
385 m
treesgrasslandartificial surfaceswater
September weather nearby: San José del Guaviare 304 km · Cumaribo 358 km · São Gabriel da Cachoeira 382 km · Puerto López 437 km · Granada 462 km · San Martín 471 km · Villanueva 487 km · Villavicencio 494 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 Mitú (1.2574°, -70.2355°, elevation 174 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. 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).