Bellavista weather in September

In September, Bellavista sees average daytime highs of 32°C and overnight lows near 21°C, with 117 mm of rain across 14.7 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 32°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 54 min at the start of September to 12 h 06 min by month's end. Set against the rest of the year, September is Bellavista's 4th-clearest and 1st-windiest month. For the whole year in context, see Bellavista's year-round climate.

Daytime high
32°
1st warmest
Overnight low
21°
5th coldest
Rainfall
117 mm
14.7 wet days
Daylight
12 hours
6:02 AM – 6:00 PM
Cloud cover
60%
4th clearest
Wind
3 km/h
1st windiest
Solar energy
5.7 kWh/m²
Travel score
3.7
out of 10

Bellavista is city in San Martín, Peru.

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 32°C through the month.

A typical September day in Bellavista reaches about 32°C in the afternoon and slips back to 21°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 34°C. Set against its neighbours, September runs on par with August and on par with October.

15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
13221
23221
33221
43221
53221
63221
73221
83221
93221
103221
113221
123221
133221
143221
153221
163221
173221
183221
193221
203221
213221
223221
233221
243221
253221
263221
273221
283222
293222
303222

How September really feels in Bellavista

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.

Bellavista 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
Jan31° / 22°22725.712.42.9
Feb30° / 22°24323.612.22.9
Mar30° / 22°29026.9122.9
Apr30° / 22°23724.211.83.1
May30° / 21°17822.211.73.6
Jun30° / 21°12916.911.64.3
Jul30° / 20°10313.611.64.8
Aug31° / 21°9011.911.84.5
Sep32° / 21°11714.7123.7
Oct31° / 22°16820.912.23.1
Nov31° / 22°21024.112.32.9
Dec31° / 22°21525.812.42.9

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 21% of September, with mostly cloudy or overcast conditions the remaining 50%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16436
26337
36337
46238
56238
66139
76040
85941
95842
105644
115545
125545
135347
145248
155050
164951
174852
184654
194654
204357
214258
224258
234159
244060
254060
263961
274060
284060
293961
303961

Chance of precipitation in September

Any precipitation

Bellavista gets around 117 mm of rain over 14.7 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 49% and peaks near 60% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
143
243
343
443
543
643
743
843
943
1044
1144
1245
1345
1446
1547
1648
1749
1850
1951
2052
2153
2254
2355
2456
2556
2657
2758
2858
2959
3060

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 92% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Muggy (%)Oppressive (%)
11288
21288
31189
41189
51189
61189
71189
81189
91189
101090
111090
121090
131090
141090
15991
16991
17991
18892
19892
20793
21793
22694
23595
24595
25496
26496
27496
28496
29397
30397

Wind in September

Winds average 3 km/h in September, the windiest month of the year.

Across September, daily wind ranges from about 3 km/h on the calmest days to 3 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
13calm
23calm
33calm
43calm
53calm
63calm
73calm
83calm
93calm
103calm
113calm
123calm
133calm
143calm
153calm
163calm
173calm
183calm
193calm
203calm
213calm
223calm
233calm
243calm
253calm
263calm
273calm
283calm
293calm
303calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 54 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 12 minutes over September. Sunrise moves from 6:10 AM to 5:54 AM, and sunset from 6:02 PM to 5:57 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.96:106:02
211.96:106:02
311.96:096:02
411.96:096:02
511.96:086:01
611.96:076:01
711.96:076:01
811.96:066:01
911.96:066:01
1011.96:056:01
1111.96:056:00
1211.96:046:00
1311.96:046:00
1411.96:036:00
1512.06:026:00
1612.06:026:00
1712.06:015:59
1812.06:015:59
1912.06:005:59
2012.06:005:59
2112.05:595:59
2212.05:585:59
2312.05:585:58
2412.05:575:58
2512.05:575:58
2612.05:565:58
2712.05:565:58
2812.05:555:58
2912.05:555:57
3012.15:545:57

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.7 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 4.44 kWh/m² to a high of 5.7 kWh/m² in September across the year — September's 5.7 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.6Bright
25.6Bright
35.6Bright
45.7Bright
55.7Bright
65.7Bright
75.7Bright
85.7Bright
95.7Bright
105.7Bright
115.7Bright
125.7Bright
135.7Bright
145.7Bright
155.7Bright
165.7Bright
175.7Bright
185.7Bright
195.7Bright
205.7Bright
215.7Bright
225.7Bright
235.7Bright
245.7Bright
255.7Bright
265.7Bright
275.7Bright
285.8Bright
295.8Bright
305.8Bright
Planning a trip in September

Is September a good time to visit Bellavista?

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

3.7
Sightseeing
4th-best month of the year
5.7
Beach & pool
4th-best month of the year

September is a weaker month for outdoor sightseeing in Bellavista.

What to pack for Bellavista in September

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

In September, Bellavista sees daytime highs around 32°C and nights near 21°C. Pack light clothes and rain gear. Worth having: sun protection. About 15 days see rain.

light clothesrain gearsun protection

UV index in Bellavista in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September 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 Bellavista peaks around February 14 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 23 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeFeb 14UV 16Jun 23UV 10
UV index (midday)Level
Jan15Extreme
Feb17Extreme
Mar15Extreme
Apr12Extreme
May12Extreme
Jun10Very high
Jul10Extreme
Aug10Extreme
Sep11Extreme
Oct13Extreme
Nov12Extreme
Dec13Extreme

Air quality in Bellavista 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 Bellavista is worst in August — around 49 µg/m³ PM2.5 (poor), about 4.2× the cleanest month (May, 12 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModerateModeratePoorModerateAug 2348 µg/m³May 1912 µg/m³
PM2.5 (µg/m³)Level
Jan22Moderate
Feb22Moderate
Mar17Moderate
Apr14Moderate
May12Good
Jun13Moderate
Jul18Moderate
Aug49Poor
Sep47Poor
Oct18Moderate
Nov15Moderate
Dec15Moderate
Location & terrain

Where is Bellavista?

Bellavista sits at 7.1°S, 76.6°W, 319 m above sea level, in Peru. The nearest listed city is Juanjuí, 20 km away.

MoyobambaTocacheRiojaYurimaguasUchizaChachapoyas

Topography around Bellavista

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

Within 3 km, the terrain around Bellavista has significant variations in elevation — a maximum elevation change of 316 m around an average of 306 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 809 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,666 m.

The land around Bellavista is covered by trees (44%) and grassland (36%) within 3 km, trees (58%) and cropland (20%) within 16 km, and trees (92%) within 80 km.

3 km
316 m
16 km
809 m
80 km
2,666 m
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Juanjuí 20 km · La Banda 68 km · Moyobamba 121 km · Tocache 126 km · Rioja 128 km · Yurimaguas 138 km · Uchiza 157 km · Chachapoyas 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 Bellavista (-7.0561°, -76.5911°, elevation 319 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).