Puerto Maldonado weather in September

In September, Puerto Maldonado sees average daytime highs of 31°C and overnight lows near 22°C, with 119 mm of rain across 13.6 wet days and about 11.9 hours of daylight. It is the 1st-warmest and 8th-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 29% of the time in September, and the air most often feels oppressive.

Daylight stretches from about 11 h 48 min at the start of September to 12 h 06 min by month's end. Set against the rest of the year, September is Puerto Maldonado's 4th-clearest and 2nd-windiest month. For the whole year in context, see Puerto Maldonado's year-round climate.

Daytime high
31°
1st warmest
Overnight low
22°
5th coldest
Rainfall
119 mm
13.6 wet days
Daylight
11 h 54 min
5:33 AM – 5:29 PM
Cloud cover
59%
4th clearest
Wind
6 km/h
2nd windiest
Solar energy
5.39 kWh/m²
Travel score
4.2
out of 10

Puerto Maldonado is capital city of Madre de Dios, Peru.

Founded
1902

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

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

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

A typical September day in Puerto Maldonado reaches about 31°C in the afternoon and slips back to 22°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 34°C. Set against its neighbours, September runs about 1°C warmer than August and on par with October.

15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
13121
23121
33121
43121
53121
63121
73121
83122
93122
103122
113122
123122
133122
143122
153122
163122
173122
183122
193122
203122
213122
223122
233122
243122
253122
263122
273122
283122
293122
303122

How September really feels in Puerto Maldonado

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.

Puerto Maldonado weather by month

How September compares with the rest of the year at a glance. September is the 1st-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 23°36927.112.73.0
Feb30° / 23°35924.612.43.0
Mar30° / 23°30025.612.13.1
Apr30° / 22°16819.111.73.9
May29° / 21°8813.811.45.2
Jun28° / 20°529.311.36.1
Jul28° / 19°467.911.36.5
Aug30° / 20°628.611.65.4
Sep31° / 22°11913.611.94.2
Oct31° / 23°22321.412.33.4
Nov30° / 23°25922.212.63.3
Dec30° / 23°3312612.73.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 29% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 23% of September, with mostly cloudy or overcast conditions the remaining 47%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16733
26733
36634
46436
56337
66337
76238
86040
95941
105842
115644
125545
135347
145248
155149
165050
174852
184852
194753
204753
214654
224555
234555
244555
254456
264456
274456
284258
294258
304258

Chance of precipitation in September

Any precipitation

Puerto Maldonado gets around 119 mm of rain over 13.6 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 46% and peaks near 57% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
138
238
339
440
540
641
741
842
942
1042
1143
1243
1344
1444
1545
1646
1746
1847
1948
2048
2149
2249
2350
2451
2552
2653
2754
2855
2956
3057

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 62% of days. Sticky, muggy-or-worse air turns up on roughly 90% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
125820605
225820605
325819615
425819606
525719616
624719626
724719617
824719617
914619628
1013619638
1113619629
1213619629
13126186310
14126186211
15125186311
16125176312
17125176312
18125166313
19125166313
20125156314
21125156215
22125146315
23025146316
24025136317
25025136317
26025136218
27024126418
28024126319
29014126320
30014126320

Wind in September

Winds average 6 km/h in September.

Across September, daily wind ranges from about 6 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 48 min at the start of September to 12 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 18 minutes over September. Sunrise moves from 5:44 AM to 5:23 AM, and sunset from 5:29 PM to 5:29 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.85:445:29
211.85:435:29
311.85:435:29
411.85:425:29
511.85:415:29
611.85:405:29
711.85:405:29
811.85:395:29
911.85:385:29
1011.95:385:29
1111.95:375:29
1211.95:365:29
1311.95:355:29
1411.95:355:29
1511.95:345:29
1611.95:335:29
1711.95:325:29
1812.05:325:29
1912.05:315:29
2012.05:305:29
2112.05:305:29
2212.05:295:29
2312.05:285:29
2412.05:275:29
2512.05:275:29
2612.15:265:29
2712.15:255:29
2812.15:255:29
2912.15:245:29
3012.15:235:29

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.39 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 3.97 kWh/m² to a high of 5.39 kWh/m² in September across the year — September's 5.39 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.3Bright
25.3Bright
35.3Bright
45.3Bright
55.3Bright
65.3Bright
75.3Bright
85.3Bright
95.3Bright
105.3Bright
115.4Bright
125.4Bright
135.4Bright
145.4Bright
155.4Bright
165.4Bright
175.4Bright
185.4Bright
195.4Bright
205.4Bright
215.4Bright
225.4Bright
235.4Bright
245.4Bright
255.4Bright
265.4Bright
275.4Bright
285.4Bright
295.4Bright
305.4Bright
Planning a trip in September

Hazard calendar for Puerto Maldonado

In seasonPeak

None of Puerto Maldonado's seasonal hazards are active in September. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Puerto Maldonado's rainy season runs October–April, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is September a good time to visit Puerto Maldonado?

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

4.2
Sightseeing
5th-best month of the year
6.1
Beach & pool
5th-best month of the year

September is a reasonable time to visit Puerto Maldonado for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Puerto Maldonado in September

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

In September, Puerto Maldonado sees daytime highs around 31°C and nights near 22°C. Pack light clothes and rain gear. Worth having: sun protection. About 14 days see rain.

light clothesrain gearsun protection

UV index in Puerto Maldonado in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Puerto Maldonado peaks around February 10 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near September 13 at about 7 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeFeb 10UV 15Sep 13UV 7
UV index (midday)Level
Jan15Extreme
Feb16Extreme
Mar15Extreme
Apr11Extreme
May10Very high
Jun8Very high
Jul8Very high
Aug9Very high
Sep6High
Oct13Extreme
Nov14Extreme
Dec13Extreme

Air quality in Puerto Maldonado 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 Puerto Maldonado is worst in September — around 47 µg/m³ PM2.5 (poor), about 6.1× the cleanest month (June, 8 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModeratePoorModerateGoodSep 1543 µg/m³Jun 118 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb13Moderate
Mar13Moderate
Apr10Good
May8Good
Jun8Good
Jul10Good
Aug23Moderate
Sep47Poor
Oct19Moderate
Nov13Moderate
Dec11Good
Location & terrain

Where is Puerto Maldonado?

Puerto Maldonado sits at 12.6°S, 69.2°W, 193 m above sea level, in Peru. The nearest listed city is Tambopata, 19 km away.

CobijaEpitaciolândiaBrasiléiaXapuriLa RinconadaSicuaniAyaviri

Topography around Puerto Maldonado

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

Within 3 km, the terrain around Puerto Maldonado has only modest variations in elevation — a maximum elevation change of 51 m around an average of 192 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 100 m; within 80 km, only modest variations in elevation — a maximum elevation change of 224 m.

The land around Puerto Maldonado is covered by trees (44%) and artificial surfaces (35%) within 3 km, trees (80%) within 16 km, and trees (95%) within 80 km.

3 km
51 m
16 km
100 m
80 km
224 m
treesgrasslandartificial surfacesbare terrainwater
September weather nearby: Tambopata 19 km · Cobija 180 km · Epitaciolândia 181 km · Brasiléia 182 km · Xapuri 228 km · La Rinconada 229 km · Sicuani 288 km · Ayaviri 296 km

Peru travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type A / B / C
220 V · 60 Hz
Prices
≈ 51% of US
price level, 2025
GDP per capita
$9,684
2025
Happiness
6.0 / 10
World Happiness, 2025
Safe drinking water
49%
of population, 2024
Homicide rate
8.6
per 100k, 2021
Road deaths
13.6
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Moderate
EF EPI 519
Religion
Catholic 76%Evangelical Christian 16%no religion 5%other religions 3%

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 Puerto Maldonado (-12.5895°, -69.1995°, elevation 193 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).