Amparo weather in September

In September, Amparo sees average daytime highs of 27°C and overnight lows near 16°C, with 93 mm of rain across 8.8 wet days and about 11.9 hours of daylight. It is the 7th-warmest and 7th-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 48% of the time in September, and the air most often feels dry.

Daylight stretches from about 11 h 30 min at the start of September to 12 h 12 min by month's end. Set against the rest of the year, September is Amparo's 4th-clearest and 1st-windiest month. For the whole year in context, see Amparo's year-round climate.

Daytime high
27°
7th warmest
Overnight low
16°
5th coldest
Rainfall
93 mm
8.8 wet days
Daylight
11 h 54 min
7:05 AM – 6:58 PM
Cloud cover
46%
4th clearest
Wind
10 km/h
1st windiest
Solar energy
5.39 kWh/m²
Travel score
6.9
out of 10

Amparo is human settlement in Brazil.

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 Amparo 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 22°C and 32°C. Set against its neighbours, September runs about 2°C warmer than August and on par with October.

10°15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
12715
22715
32715
42715
52715
62715
72715
82715
92715
102715
112716
122716
132716
142716
152716
162716
172716
182716
192716
202716
212716
222716
232716
242716
252716
262716
272716
282716
292716
302716

Amparo weather by month

How September compares with the rest of the year at a glance. September is the 7th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 19°27522.813.24.1
Feb28° / 19°18619.112.84.3
Mar28° / 19°14717.812.25.1
Apr27° / 17°769.111.56.8
May24° / 14°717.110.97.6
Jun24° / 13°484.910.68.1
Jul24° / 13°444.110.78.3
Aug25° / 14°354.211.28.2
Sep27° / 16°938.811.96.9
Oct28° / 17°13713.912.55.8
Nov27° / 18°17816.713.15.3
Dec28° / 19°2252113.44.7

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 48% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 16% of September, with mostly cloudy or overcast conditions the remaining 36%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17624
27525
37426
47327
57228
67228
77129
87030
96931
106832
116832
126733
136634
146535
156535
166436
176337
186337
196238
206040
215941
225842
235743
245644
255545
265347
275347
285149
295149
305149

Chance of precipitation in September

Any precipitation

Amparo gets around 93 mm of rain over 8.8 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 29% and peaks near 40% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)
120
220
321
421
522
622
723
823
924
1024
1125
1225
1326
1426
1527
1628
1729
1829
1931
2032
2133
2234
2335
2436
2537
2638
2738
2839
2940
3040

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the dry band about 41% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1623080
2613090
35931100
45832100
55633110
65434120
75434120
85235130
95036140
104837150
114638160
124438171
134339181
144140181
154040191
163841201
173741211
183641221
193541231
203441241
213341252
223240262
233140282
243039292
252938303
262838313
272737324
282637344
292536354
302435365

Wind in September

Winds average 10 km/h in September, the windiest month of the year.

Across September, daily wind ranges from about 10 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 30 min at the start of September to 12 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 42 minutes over September. Sunrise moves from 7:21 AM to 6:51 AM, and sunset from 6:53 PM to 7:02 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.57:216:53
211.67:206:53
311.67:196:54
411.67:186:54
511.67:176:54
611.67:166:54
711.77:156:55
811.77:146:55
911.77:136:55
1011.77:126:56
1111.87:106:56
1211.87:096:56
1311.87:086:57
1411.87:076:57
1511.87:066:57
1611.97:056:58
1711.97:046:58
1811.97:036:58
1911.97:026:58
2012.07:016:59
2112.07:006:59
2212.06:596:59
2312.06:587:00
2412.16:577:00
2512.16:567:00
2612.16:557:01
2712.16:547:01
2812.16:537:01
2912.26:527:02
3012.26:517:02

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.

For context, solar energy here swings from a low near 3.69 kWh/m² to a high of 5.92 kWh/m² in November across the year — September's 5.39 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.3Bright
25.3Bright
35.3Bright
45.3Bright
55.3Bright
65.3Bright
75.3Bright
85.3Bright
95.4Bright
105.4Bright
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
275.5Bright
285.5Bright
295.5Bright
305.5Bright
Planning a trip in September

Hazard calendar for Amparo

In seasonPeak

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

Amparo's rainy season runs October–March, 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 Amparo?

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

6.9
Sightseeing
5th-best month of the year
7.0
Beach & pool
2nd-best month of the year

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

What to pack for Amparo in September

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

In September, Amparo sees daytime highs around 27°C and nights near 16°C. Worth packing: light clothes, rain gear and sun protection. About 9 days see rain.

light clothesrain gearsun protection

UV index in Amparo in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Amparo peaks around January 20 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 12 at about 6 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeJan 20UV 15Jul 12UV 6
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar12Extreme
Apr9Very high
May7High
Jun6High
Jul6High
Aug8Very high
Sep8Very high
Oct11Extreme
Nov14Extreme
Dec14Extreme

Air quality in Amparo 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 Amparo is worst in September — around 27 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (December, 15 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateSep 1227 µg/m³Dec 1515 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb16Moderate
Mar18Moderate
Apr21Moderate
May24Moderate
Jun25Moderate
Jul26Moderate
Aug25Moderate
Sep27Moderate
Oct20Moderate
Nov15Moderate
Dec15Moderate
Location & terrain

Where is Amparo?

Amparo sits at 22.7°S, 46.8°W, 680 m above sea level, in Brazil. The nearest listed city is Serra Negra, 12 km away.

Topography around Amparo

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

Within 3 km, the terrain around Amparo has significant variations in elevation — a maximum elevation change of 304 m around an average of 736 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 714 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,507 m.

The land around Amparo is covered by grassland (39%), trees (38%) and artificial surfaces (21%) within 3 km, trees (47%) and grassland (42%) within 16 km, and trees (41%), grassland (32%) and cropland (20%) within 80 km.

3 km
304 m
16 km
714 m
80 km
1,507 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Serra Negra 12 km · Santo Antônio de Posse 19 km · Pinhalzinho 20 km · Jaguariúna 23 km · Socorro 27 km · Águas de Lindóia 28 km · Souzas 29 km · Itapira 30 km

Brazil travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / N
127 / 220 V · 60 Hz
Prices
≈ 46% of US
price level, 2025
GDP per capita
$10,713
2025
Happiness
6.6 / 10
World Happiness, 2025
Safe drinking water
89%
of population, 2024
Homicide rate
19.3
per 100k, 2023
Road deaths
16
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Low
EF EPI 482
Religion
Roman Catholic 57%Evangelical 27%none 9%other 4%

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 Amparo (-22.7011°, -46.7644°, elevation 680 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).