São Pedro weather in January

In January, São Pedro sees average daytime highs of 29°C and overnight lows near 20°C, with 288 mm of rain across 23.7 wet days and about 13.2 hours of daylight. It is the 2nd-warmest and 1st-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 14% of the time in January, and the air most often feels muggy.

Daylight stretches from about 13 h 24 min at the start of January to 13 hours by month's end. Set against the rest of the year, January is São Pedro's 12th-clearest and 9th-windiest month. For the whole year in context, see São Pedro's year-round climate.

Daytime high
29°
2nd warmest
Overnight low
20°
12th coldest
Rainfall
288 mm
23.7 wet days
Daylight
13 h 12 min
6:44 AM – 7:58 PM
Cloud cover
75%
12th clearest
Wind
8 km/h
9th windiest
Solar energy
5.61 kWh/m²
Travel score
3.7
out of 10

São Pedro is human settlement in Brazil.

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

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 29°C through the month.

A typical January day in São Pedro reaches about 29°C in the afternoon and slips back to 20°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 33°C. Set against its neighbours, January runs on par with December and on par with February.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12920
22920
32920
42920
52920
62920
72920
82920
92920
102920
112920
122920
132920
142920
152920
162920
172920
182920
192920
202920
212920
222920
232920
242920
252920
262920
272920
282920
292920
302920
312920

São Pedro weather by month

How January compares with the rest of the year at a glance. January is the 2nd-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 20°28823.713.23.7
Feb29° / 20°22820.512.83.8
Mar29° / 20°18319.412.24.5
Apr28° / 18°69911.56.4
May25° / 15°566.510.97.5
Jun25° / 13°404.810.68.0
Jul25° / 13°323.910.88.2
Aug27° / 13°324.111.27.9
Sep28° / 16°698.511.96.3
Oct29° / 18°12713.612.55.0
Nov29° / 19°17616.413.14.7
Dec29° / 20°21621.813.44.0

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 14% of the time in January, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 14% of January, with mostly cloudy or overcast conditions the remaining 72%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12971
22971
32971
42872
52773
62773
72674
82674
92773
102773
112872
122872
132872
142773
152773
162773
172773
182773
192872
202872
212773
222773
232773
242773
252872
262971
273070
283070
293169
303169
313169

Chance of precipitation in January

Any precipitation

São Pedro gets around 288 mm of rain over 23.7 wet days in January, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 75% and peaks near 78% on the wettest days.

0%20%40%60%80%151015202531
Rain chance (%)
172
273
373
473
574
674
774
875
975
1075
1174
1274
1374
1475
1575
1675
1775
1876
1976
2076
2176
2277
2377
2477
2577
2677
2778
2878
2978
3077
3177

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, January lands in the muggy band about 61% of days. Sticky, muggy-or-worse air turns up on roughly 86% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
11166320
21156321
31156321
41146322
51146322
61136323
71136323
81126423
91126324
101116424
111116424
121116424
131116325
141116325
151116325
161116226
171116226
181116226
191116226
202116027
212125927
222125828
232125828
242125828
252125729
263125629
273125629
283125629
293125629
304125529
314125529

Wind in January

Winds average 8 km/h in January.

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

0246810151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 13 h 24 min at the start of January to 13 hours by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 24 minutes over January. Sunrise moves from 6:34 AM to 6:54 AM, and sunset from 7:56 PM to 7:56 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.46:347:56
213.46:357:56
313.36:357:56
413.36:367:56
513.36:367:57
613.36:377:57
713.36:387:57
813.36:387:57
913.36:397:58
1013.36:407:58
1113.36:407:58
1213.36:417:58
1313.36:427:58
1413.36:427:58
1513.36:437:58
1613.26:447:58
1713.26:447:58
1813.26:457:58
1913.26:467:58
2013.26:467:58
2113.26:477:58
2213.26:487:58
2313.26:487:58
2413.16:497:58
2513.16:507:58
2613.16:507:57
2713.16:517:57
2813.16:527:57
2913.16:527:57
3013.16:537:56
3113.06:547:56

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 5.61 kWh/m².

For context, solar energy here swings from a low near 3.65 kWh/m² to a high of 6 kWh/m² in November across the year — January's 5.61 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.8Bright
25.8Bright
35.7Bright
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
285.7Bright
295.7Bright
305.7Bright
315.7Bright
Planning a trip in January

Hazard calendar for São Pedro

In seasonPeak

In January, São Pedro sits inside its monsoon season. The full year is below, with each hazard's peak months called out.

São Pedro's monsoon runs November–March, when most of the year's rain falls.

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

Is January a good time to visit São Pedro?

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

3.7
Sightseeing
12th-best month of the year
4.8
Beach & pool
12th-best month of the year

January is a weaker month for outdoor sightseeing in São Pedro.

What to pack for São Pedro in January

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

In January, São Pedro sees daytime highs around 29°C and nights near 20°C. Pack light clothes and rain gear. Worth having: sun protection. About 24 days see rain.

light clothesrain gearsun protection

UV index in São Pedro in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 15 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in São Pedro peaks around January 20 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 20UV 15Jul 11UV 6
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar12Extreme
Apr10Very high
May7High
Jun6High
Jul6High
Aug8Very high
Sep9Very high
Oct11Extreme
Nov13Extreme
Dec14Extreme

Air quality in São Pedro in January

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where January falls, not just the annual average.

Air quality in São Pedro is worst in September — around 25 µg/m³ PM2.5 (moderate), about 2.3× the cleanest month (December, 11 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1125 µg/m³Dec 1211 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb12Good
Mar12Moderate
Apr14Moderate
May16Moderate
Jun17Moderate
Jul18Moderate
Aug24Moderate
Sep25Moderate
Oct18Moderate
Nov11Good
Dec11Good
Location & terrain

Where is São Pedro?

São Pedro sits at 22.5°S, 47.9°W, 566 m above sea level, in Brazil. The nearest listed city is Charqueada, 15 km away.

Topography around São Pedro

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

Within 3 km, the terrain around São Pedro has significant variations in elevation — a maximum elevation change of 357 m around an average of 579 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 636 m; within 80 km, large variations in elevation — a maximum elevation change of 659 m.

The land around São Pedro is covered by trees (35%), grassland (34%) and artificial surfaces (24%) within 3 km, trees (37%), grassland (32%) and cropland (29%) within 16 km, and cropland (45%) and trees (30%) within 80 km.

3 km
357 m
16 km
636 m
80 km
659 m
treesgrasslandcroplandartificial surfaceswater
January weather nearby: Charqueada 15 km · Piracicaba 34 km · Itirapina 34 km · Brotas 37 km · Rio Claro 39 km · Santa Gertrudes 41 km · Iracemápolis 41 km · Rio das Pedras 46 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 São Pedro (-22.5486°, -47.9139°, elevation 566 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).