Diamantina weather in January

In January, Diamantina sees average daytime highs of 27°C and overnight lows near 18°C, with 188 mm of rain across 16.3 wet days and about 13 hours of daylight. It is the 2nd-warmest and 3rd-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 17% of the time in January, and the air most often feels humid.

Daylight stretches from about 13 h 06 min at the start of January to 12 h 48 min by month's end. Set against the rest of the year, January is Diamantina's 10th-clearest and 6th-windiest month. For the whole year in context, see Diamantina's year-round climate.

Daytime high
27°
2nd warmest
Overnight low
18°
12th coldest
Rainfall
188 mm
16.3 wet days
Daylight
13 hours
6:34 AM – 7:33 PM
Cloud cover
73%
10th clearest
Wind
7 km/h
6th windiest
Solar energy
5.9 kWh/m²
Travel score
5.4
out of 10

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 27°C through the month.

A typical January day in Diamantina reaches about 27°C in the afternoon and slips back to 18°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 30°C. Set against its neighbours, January runs on par with December and on par with February.

15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12718
22718
32718
42718
52718
62718
72718
82718
92718
102718
112718
122718
132718
142718
152718
162718
172718
182718
192718
202718
212718
222718
232718
242718
252718
262718
272718
282718
292718
302718
312718

Diamantina weather by month

How January compares with the rest of the year at a glance. January is the 2nd-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 18°18816.3135.4
Feb27° / 18°12612.512.65.8
Mar27° / 18°14715.812.15.6
Apr26° / 16°7610.711.66.6
May24° / 14°265.411.27.7
Jun23° / 13°81.910.98.3
Jul23° / 12°61.5118.5
Aug24° / 13°92.311.48.5
Sep26° / 14°365.711.97.4
Oct27° / 16°10511.112.46.3
Nov26° / 17°22618.912.95.0
Dec26° / 18°27020.313.14.9

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 17% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 13% of January, with mostly cloudy or overcast conditions the remaining 70%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12872
22872
32872
42872
52872
62872
72872
82872
92971
102971
112971
122971
132971
143070
153070
163070
173070
183169
193070
203070
213070
223070
233268
243169
253169
263268
273268
283367
293367
303367
313367

Chance of precipitation in January

Any precipitation

Diamantina gets around 188 mm of rain over 16.3 wet days in January. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 53% and peaks near 58% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
158
258
357
457
556
655
755
854
953
1053
1152
1252
1352
1452
1552
1652
1753
1853
1953
2053
2153
2252
2352
2451
2551
2650
2750
2849
2948
3048
3147

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, January lands in the humid band about 47% of days. Sticky, muggy-or-worse air turns up on roughly 41% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)
1124741
2124741
3124741
4124740
5124840
6124840
7124840
8124840
9124840
10124840
11124840
12124840
13124840
14124840
15124840
16124741
17124641
18124642
19124542
20124543
21124443
22124443
23134443
24134442
25134542
26134541
27134641
28134740
29134839
30144838
31144937

Wind in January

Winds average 7 km/h in January.

Across January, daily wind ranges from about 7 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 13 h 06 min at the start of January to 12 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 18 minutes over January. Sunrise moves from 6:25 AM to 6:43 AM, and sunset from 7:30 PM to 7:32 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.16:257:30
213.16:267:30
313.16:267:31
413.16:277:31
513.16:287:31
613.16:287:31
713.06:297:32
813.06:297:32
913.06:307:32
1013.06:317:32
1113.06:317:33
1213.06:327:33
1313.06:327:33
1413.06:337:33
1513.06:347:33
1613.06:347:33
1713.06:357:33
1813.06:357:33
1913.06:367:33
2012.96:377:33
2112.96:377:33
2212.96:387:33
2312.96:387:33
2412.96:397:33
2512.96:407:33
2612.96:407:33
2712.96:417:33
2812.96:417:33
2912.86:427:33
3012.86:427:33
3112.86:437:32

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 5.9 kWh/m².

For context, solar energy here swings from a low near 3.89 kWh/m² to a high of 6.02 kWh/m² in February across the year — January's 5.9 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.8Bright
25.8Bright
35.8Bright
45.8Bright
55.8Bright
65.8Bright
75.8Bright
85.8Bright
95.8Bright
105.9Bright
115.9Bright
125.9Bright
135.9Bright
145.9Bright
155.9Bright
165.9Bright
175.9Bright
185.9Bright
195.9Bright
205.9Bright
215.9Bright
226.0Bright
236.0Bright
246.0Bright
256.0Bright
266.0Bright
276.0Bright
286.0Bright
296.0Intense
306.0Intense
316.0Intense
Planning a trip in January

Hazard calendar for Diamantina

In seasonPeak

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

Diamantina'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 Diamantina?

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

5.4
Sightseeing
10th-best month of the year
5.5
Beach & pool
10th-best month of the year

January is a reasonable time to visit Diamantina for sightseeing.

What to pack for Diamantina in January

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

In January, Diamantina sees daytime highs around 27°C and nights near 18°C. Pack rain gear. Worth having: light clothes and sun protection. About 16 days see rain.

rain gearlight clothessun protection

UV index in Diamantina 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 Diamantina peaks around February 13 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 23 at about 8 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeFeb 13UV 15Jun 23UV 8
UV index (midday)Level
Jan15Extreme
Feb16Extreme
Mar14Extreme
Apr11Extreme
May9Very high
Jun8Very high
Jul8Very high
Aug10Very high
Sep12Extreme
Oct13Extreme
Nov14Extreme
Dec14Extreme

Air quality in Diamantina 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 Diamantina is worst in September — around 15 µg/m³ PM2.5 (moderate), about 4.1× the cleanest month (July, 4 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 2015 µg/m³Jul 144 µg/m³
PM2.5 (µg/m³)Level
Jan5Good
Feb6Good
Mar5Good
Apr5Good
May5Good
Jun4Good
Jul4Good
Aug5Good
Sep15Moderate
Oct12Moderate
Nov7Good
Dec6Good
Location & terrain

Where is Diamantina?

Diamantina sits at 18.2°S, 43.6°W, 1,281 m above sea level, in Brazil. The nearest listed city is Serro, 46 km away.

Topography around Diamantina

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

Within 3 km, the terrain around Diamantina has significant variations in elevation — a maximum elevation change of 317 m around an average of 1,224 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 868 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,528 m.

The land around Diamantina is covered by grassland (65%) within 3 km, grassland (68%) and trees (26%) within 16 km, and trees (46%) and grassland (42%) within 80 km.

3 km
317 m
16 km
868 m
80 km
1,528 m
treesshrubsgrasslandcroplandartificial surfacesbare terrain
January weather nearby: Serro 46 km · Itamarandiba 90 km · Conceição do Mato Dentro 90 km · Corinto 91 km · Guanhães 92 km · São João Evangelista 95 km · Curvelo 104 km · Peçanha 115 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 Diamantina (-18.2469°, -43.6035°, elevation 1,281 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).