Moyobamba weather in September

In September, Moyobamba sees average daytime highs of 27°C and overnight lows near 16°C, with 122 mm of rain across 24.6 wet days and about 12 hours of daylight. It is the 1st-warmest and 10th-wettest month of the year here.

Day-to-day highs hold fairly steady near 27°C through the month. The sky is clear or mostly clear about 14% of the time in September, and the air most often feels humid.

Daylight stretches from about 11 h 54 min at the start of September to 12 hours by month's end. Set against the rest of the year, September is Moyobamba's 4th-clearest and 8th-windiest month. For the whole year in context, see Moyobamba's year-round climate.

Daytime high
27°
1st warmest
Overnight low
16°
3rd coldest
Rainfall
122 mm
24.6 wet days
Daylight
12 hours
6:03 AM – 6:01 PM
Cloud cover
67%
4th clearest
Wind
4 km/h
8th windiest
Solar energy
5.55 kWh/m²
Travel score
4.2
out of 10

Moyobamba is capital city of San Martín, Peru.

Founded
1540

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 27°C through the month.

A typical September day in Moyobamba reaches about 27°C in the afternoon and slips back to 16°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 29°C. Set against its neighbours, September runs on par with August and on par with October.

10°15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12716
22716
32716
42716
52716
62716
72716
82716
92716
102716
112716
122716
132716
142716
152716
162716
172716
182716
192716
202716
212716
222716
232716
242716
252716
262716
272716
282716
292716
302716

Moyobamba weather by month

How September compares with the rest of the year at a glance. September is the 1st-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan26° / 18°16927.112.33.9
Feb26° / 17°17925.312.23.7
Mar26° / 17°24729.6123.5
Apr27° / 17°21027.811.93.7
May27° / 17°16626.711.74.0
Jun26° / 16°12423.711.74.6
Jul26° / 15°10322.211.75.0
Aug26° / 15°9321.611.85.0
Sep27° / 16°12224.6124.2
Oct27° / 17°16928.312.13.7
Nov27° / 18°1742812.33.6
Dec26° / 18°16827.912.33.8

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 14% 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 62%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15050
24951
34852
44852
54753
64654
74654
84654
94555
104456
114357
124258
134159
143961
153862
163664
173664
183466
193367
203169
213169
223070
233070
242971
252971
262872
272872
282872
292773
302773

Chance of precipitation in September

Any precipitation

Moyobamba gets around 122 mm of rain over 24.6 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 82% and peaks near 89% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%100%151015202530
Rain chance (%)
176
276
376
476
577
677
777
877
978
1078
1178
1279
1379
1480
1581
1681
1782
1883
1983
2084
2185
2286
2386
2487
2587
2688
2788
2889
2989
3089

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the humid band about 86% of days. Sticky, muggy-or-worse air turns up on roughly 14% of them.

0%25%50%75%100%151015202530
Comfortable (%)Humid (%)Muggy (%)
11909
21909
31909
41909
51909
61909
71909
81909
918910
1018910
1118811
1218811
1308812
1408812
1508713
1608614
1708614
1808515
1908515
2008416
2108317
2208317
2308317
2408218
2508218
2608119
2708119
2808020
2907921
3007822

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 11 h 54 min 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 6 minutes over September. Sunrise moves from 6:11 AM to 5:56 AM, and sunset from 6:04 PM to 5:59 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.96:116:04
211.96:116:04
311.96:106:04
411.96:106:04
511.96:096:03
611.96:096:03
711.96:086:03
811.96:086:03
911.96:076:03
1011.96:066:02
1111.96:066:02
1211.96:056:02
1312.06:056:02
1412.06:046:02
1512.06:046:01
1612.06:036:01
1712.06:036:01
1812.06:026:01
1912.06:026:01
2012.06:016:00
2112.06:006:00
2212.06:006:00
2312.05:596:00
2412.05:596:00
2512.05:585:59
2612.05:585:59
2712.05:575:59
2812.05:575:59
2912.05:565:59
3012.05:565:59

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.55 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 4.51 kWh/m² to a high of 5.55 kWh/m² in September across the year — September's 5.55 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.5Bright
25.5Bright
35.5Bright
45.5Bright
55.5Bright
65.5Bright
75.5Bright
85.5Bright
95.5Bright
105.5Bright
115.6Bright
125.6Bright
135.6Bright
145.6Bright
155.6Bright
165.6Bright
175.6Bright
185.6Bright
195.6Bright
205.6Bright
215.6Bright
225.6Bright
235.6Bright
245.6Bright
255.6Bright
265.6Bright
275.6Bright
285.6Bright
295.6Bright
305.6Bright
Planning a trip in September

Is September a good time to visit Moyobamba?

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

4.2
Sightseeing
4th-best month of the year
4.3
Beach & pool
4th-best month of the year

September is a reasonable time to visit Moyobamba for sightseeing.

What to pack for Moyobamba in September

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

In September, Moyobamba sees daytime highs around 27°C and nights near 16°C. Pack light clothes and rain gear. Worth having: sun protection. About 25 days see rain.

light clothesrain gearsun protection

UV index in Moyobamba 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 Moyobamba peaks around February 13 at about 17 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near August 11 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeFeb 13UV 17Aug 11UV 10
UV index (midday)Level
Jan16Extreme
Feb17Extreme
Mar15Extreme
Apr13Extreme
May13Extreme
Jun11Extreme
Jul10Extreme
Aug10Extreme
Sep12Extreme
Oct14Extreme
Nov13Extreme
Dec13Extreme

Air quality in Moyobamba 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 Moyobamba is worst in September — around 20 µg/m³ PM2.5 (moderate), about 2.5× the cleanest month (June, 8 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodModerateGoodSep 1319 µg/m³Jun 118 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb14Moderate
Mar12Moderate
Apr10Good
May8Good
Jun8Good
Jul9Good
Aug16Moderate
Sep20Moderate
Oct10Good
Nov11Good
Dec10Good
Location & terrain

Where is Moyobamba?

Moyobamba sits at 6.0°S, 77.0°W, 741 m above sea level, in Peru. The nearest listed city is Rioja, 21 km away.

BellavistaJuanjuíBagua GrandeLa Peca

Topography around Moyobamba

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

Within 3 km, the terrain around Moyobamba has only modest variations in elevation — a maximum elevation change of 103 m around an average of 848 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 925 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,838 m.

The land around Moyobamba is covered by trees (40%) and grassland (32%) within 3 km, trees (72%) and grassland (23%) within 16 km, and trees (91%) within 80 km.

3 km
103 m
16 km
925 m
80 km
3,838 m
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Rioja 21 km · La Banda 86 km · Yurimaguas 95 km · Chachapoyas 101 km · Bellavista 121 km · Juanjuí 130 km · Bagua Grande 165 km · La Peca 168 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 Moyobamba (-6.0344°, -76.9742°, elevation 741 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).