Mogi Guaçu weather in September

In September, Mogi Guaçu sees average daytime highs of 29°C and overnight lows near 16°C, with 76 mm of rain across 8.1 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 29°C through the month. The sky is clear or mostly clear about 53% 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 Mogi Guaçu's 4th-clearest and 1st-windiest month. For the whole year in context, see Mogi Guaçu's year-round climate.

Daytime high
29°
7th warmest
Overnight low
16°
5th coldest
Rainfall
76 mm
8.1 wet days
Daylight
11 h 54 min
7:06 AM – 6:58 PM
Cloud cover
44%
4th clearest
Wind
8 km/h
1st windiest
Solar energy
5.55 kWh/m²
Travel score
6.2
out of 10

Mogi Guaçu 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 29°C through the month.

A typical September day in Mogi Guaçu reaches about 29°C in the afternoon and slips back to 16°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 33°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)
12815
22815
32815
42815
52816
62916
72916
82916
92916
102916
112916
122916
132916
142916
152916
162917
172917
182917
192917
202917
212917
222917
232917
242917
252917
262917
272917
282917
292917
302917

Mogi Guaçu 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
Jan29° / 20°2632313.23.7
Feb29° / 20°18919.212.83.9
Mar29° / 19°15718.512.24.5
Apr28° / 17°729.211.56.4
May25° / 15°56610.97.6
Jun25° / 13°353.810.78.2
Jul25° / 13°323.610.88.3
Aug27° / 14°283.811.27.9
Sep29° / 16°768.111.96.2
Oct29° / 18°1191412.54.9
Nov29° / 19°17917.213.14.6
Dec29° / 20°22121.513.34.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 53% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 13% of September, with mostly cloudy or overcast conditions the remaining 35%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17822
27723
37723
47624
57525
67525
77426
87327
97228
107129
117030
126931
136832
146832
156634
166535
176535
186337
196238
206139
216040
225941
235842
245743
255644
265545
275446
285347
295248
305248

Chance of precipitation in September

Any precipitation

Mogi Guaçu gets around 76 mm of rain over 8.1 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 27% and peaks near 36% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)
119
219
320
420
521
621
722
822
923
1023
1124
1224
1325
1425
1526
1626
1727
1828
1929
2030
2130
2231
2332
2433
2533
2634
2735
2835
2936
3036

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 40% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
16128110
26028120
35928130
45629141
55529151
65430151
75330161
85131171
94932181
104832191
114633202
124433202
134334212
144135222
154035232
163836232
173736243
183536253
193436263
203336274
213136284
223036295
232935306
242835317
252634327
262534338
272433349
2823323510
2922323610
3021313611

Wind in September

Winds average 8 km/h in September, the windiest month of the year.

Across September, daily wind ranges from about 8 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
288calm
298calm
308calm

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 6:52 AM, and sunset from 6:54 PM to 7:03 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.57:216:54
211.67:206:54
311.67:196:55
411.67:186:55
511.67:176:55
611.77:166:55
711.77:156:56
811.77:146:56
911.77:136:56
1011.77:126:57
1111.87:116:57
1211.87:106:57
1311.87:096:57
1411.87:086:58
1511.97:076:58
1611.97:066:58
1711.97:056:59
1811.97:046:59
1911.97:036:59
2012.07:026:59
2112.07:017:00
2212.07:007:00
2312.06:597:00
2412.06:587:01
2512.16:577:01
2612.16:567:01
2712.16:557:02
2812.16:547:02
2912.26:537:02
3012.26:527:03

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.

For context, solar energy here swings from a low near 3.8 kWh/m² to a high of 6 kWh/m² in November across the year — September's 5.55 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.4Bright
25.4Bright
35.4Bright
45.4Bright
55.4Bright
65.5Bright
75.5Bright
85.5Bright
95.5Bright
105.5Bright
115.5Bright
125.5Bright
135.5Bright
145.5Bright
155.5Bright
165.6Bright
175.6Bright
185.6Bright
195.6Bright
205.6Bright
215.6Bright
225.6Bright
235.6Bright
245.6Bright
255.6Bright
265.6Bright
275.6Bright
285.7Bright
295.7Bright
305.7Bright
Planning a trip in September

Hazard calendar for Mogi Guaçu

In seasonPeak

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

Mogi Guaçu'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 Mogi Guaçu?

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

6.2
Sightseeing
6th-best month of the year
7.5
Beach & pool
3rd-best month of the year

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

What to pack for Mogi Guaçu in September

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

In September, Mogi Guaçu sees daytime highs around 29°C and nights near 16°C. Pack light clothes. Worth having: rain gear and sun protection. About 8 days see rain.

light clothesrain gearsun protection

UV index in Mogi Guaçu 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 Mogi Guaçu peaks around January 24 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 11 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 24UV 15Jul 11UV 6
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar13Extreme
Apr10Very high
May7High
Jun6High
Jul6High
Aug8Very high
Sep8Very high
Oct12Extreme
Nov14Extreme
Dec14Extreme

Air quality in Mogi Guaçu 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 Mogi Guaçu is worst in September — around 32 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (December, 16 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateSep 1032 µg/m³Dec 1516 µg/m³
PM2.5 (µg/m³)Level
Jan16Moderate
Feb17Moderate
Mar19Moderate
Apr22Moderate
May26Moderate
Jun28Moderate
Jul30Moderate
Aug31Moderate
Sep32Moderate
Oct22Moderate
Nov16Moderate
Dec16Moderate
Location & terrain

Where is Mogi Guaçu?

Mogi Guaçu sits at 22.4°S, 46.9°W, 612 m above sea level, in Brazil. The nearest listed city is Mogi Mirim, 7.0 km away.

Topography around Mogi Guaçu

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

Within 3 km, the terrain around Mogi Guaçu has only modest variations in elevation — a maximum elevation change of 120 m around an average of 623 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 268 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,306 m.

The land around Mogi Guaçu is covered by artificial surfaces (55%) and trees (26%) within 3 km, cropland (37%), trees (32%) and grassland (21%) within 16 km, and trees (34%), cropland (31%) and grassland (29%) within 80 km.

3 km
120 m
16 km
268 m
80 km
1,306 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Mogi Mirim 7.0 km · Itapira 15 km · Conchal 24 km · Santo Antônio de Posse 27 km · Espírito Santo do Pinhal 28 km · Engenheiro Coelho 31 km · Terra Preta 31 km · Holambra 32 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 Mogi Guaçu (-22.3677°, -46.9455°, elevation 612 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).