Climate Insights for Ouro Preto do Oeste

Ouro Preto do Oeste, Rondônia, Brazil

Hottest
November
21°C peak
Coldest
May
0°C low
Wettest
December
33mm rain
Best to Visit
January, February, March
Mild temps & low rain

Climate Overview

The climate in Ouro Preto do Oeste is temperate. The average annual temperature is 15°C and approximately 278mm of precipitation falls per year. December is the wettest month, receiving around 33mm of rainfall. Ouro Preto do Oeste is in the Southern Hemisphere. The seasons are reversed: summer runs from December to February, while winter falls between June and August. The summer months are: November, December, October. The coldest months are May, July, June, when temperatures can drop to 0°C.

Temperature

10° 15° 20° 25° 30° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: 19° Average: 19° Min: 18° Feb Max: 18° Average: 18° Min: 17° Mar Max: 18° Average: 17° Min: 17° Apr Max: 17° Average: 16° Min: 15° May Max: 7° Average: 4° Min: 0° Jun Max: 14° Average: 10° Min: 7° Jul Max: 12° Average: 7° Min: 2° Aug Max: 16° Average: 15° Min: 13° Sep Max: 19° Average: 18° Min: 16° Oct Max: 20° Average: 19° Min: 19° Nov Max: 21° Average: 20° Min: 19° Dec Max: 21° Average: 20° Min: 19°
Max
Average
Min

Temperatures in Ouro Preto do Oeste vary considerably across the year, with a 21°C difference between the coldest and warmest months. November is the warmest month, though highs remain moderate at 21°C with a mean of 20°C. May is the coolest month, with minimum temperatures around 0°C and an average of 4°C. Daily temperature variation is modest, with an average difference of 3°C between highs and lows. The sharpest temperature change occurs between April and May, with a 12°C shift in average temperatures.

Precipitation

0mm 25mm 50mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 12mm Feb Precipitation: 33mm Mar Precipitation: 33mm Apr Precipitation: 1mm May Precipitation: 33mm Jun Precipitation: 0mm Jul Precipitation: 3mm Aug Precipitation: 33mm Sep Precipitation: 33mm Oct Precipitation: 33mm Nov Precipitation: 33mm Dec Precipitation: 33mm
Precipitation

Ouro Preto do Oeste is a quite dry location, receiving approximately 278mm of precipitation annually, which averages out to around 23mm per month. The wettest month is February, averaging 33mm of rainfall. March and May also tend to see above-average precipitation. The driest month is June, with just 0mm. That's 33mm less than February, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.

Wind

0km/h 5km/h 10km/h 15km/h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Wind Speed: 10km/h Feb Wind Speed: 10km/h Mar Wind Speed: 9km/h Apr Wind Speed: 9km/h May Wind Speed: 4km/h Jun Wind Speed: 4km/h Jul Wind Speed: 3km/h Aug Wind Speed: 11km/h Sep Wind Speed: 12km/h Oct Wind Speed: 10km/h Nov Wind Speed: 8km/h Dec Wind Speed: 6km/h
Wind Speed

Ouro Preto do Oeste is relatively calm, with an average annual wind speed of 8km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is September, averaging 12km/h, though still comfortable for most outdoor activities. The calmest conditions occur in July, with average winds dropping to 3km/h, making it an ideal period for wind-sensitive activities. Wind speeds vary significantly across the year, with a 9km/h difference between the calmest and windiest months. This level of variation is worth factoring into travel plans. Wind tends to pick up during the summer months. The seasonal averages are 6km/h in winter, 10km/h in spring, 9km/h in summer, 7km/h in autumn.

Seasons

Winter
Dec 21
Spring
Sep 23
Summer
Dec 21
Autumn
Mar 20

16 days until Spring

It is currently winter in Ouro Preto do Oeste, which began on June 21, 2026. Ouro Preto do Oeste is in the Southern Hemisphere, where the seasons are reversed: spring starts in September, summer in December, autumn in March, and winter in June. The warmest period peaks in November at around 21°C, while the coldest stretch bottoms out in May near 0°C. Spring is next, beginning on September 23, 2026 (16 days from now).

Spring

Temperatures range from 16 to 21°C. Rainfall is relatively light, with around 98mm over the season and a monthly average of 33mm. Winds are generally light, averaging 10km/h. Light layers work well as temperatures warm through the season. It is a great time to be outdoors.

Summer

Temperatures range from 17 to 21°C. Rainfall is relatively light, with around 77mm over the season and a monthly average of 26mm. Winds are generally light, averaging 9km/h. Comfortable clothing with a light layer for cooler evenings is all you need.

Autumn

Temperatures range from 0 to 18°C. Rainfall is relatively light, with around 67mm over the season and a monthly average of 22mm. Winds are generally light, averaging 7km/h. Layered clothing works best as temperatures gradually cool. Enjoy the crisp air and changing scenery.

Winter

Temperatures range from 2 to 16°C. Precipitation is minimal, with only around 36mm for the entire season. Winds are generally light, averaging 6km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.

Best Time to Visit

Jan 19°
Feb 18°
Mar 17°
Apr 16°
May
Jun 10°
Jul
Aug 15°
Sep 18°
Oct 19°
Nov 20°
Dec 20°

The best time to visit Ouro Preto do Oeste is during January, February, March, April, September, October, November and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 18°C with modest rainfall averaging 26mm per month. By contrast, May can be quite cold with temperatures dropping to 0°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

Monthly Climate Data

The table below shows monthly climate averages for Ouro Preto do Oeste based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.

Month
Min Temperature
Max Temperature
Wind Speed
Precipitation
Snow
Jan
18 °C
19 °C
10 km/h
12 mm
0 cm
Feb
17 °C
18 °C
10 km/h
33 mm
0 cm
Mar
17 °C
18 °C
9 km/h
33 mm
0 cm
Apr
15 °C
17 °C
9 km/h
1 mm
0 cm
May
0 °C
7 °C
4 km/h
33 mm
0 cm
Jun
7 °C
14 °C
4 km/h
0 mm
0 cm
Jul
2 °C
12 °C
3 km/h
3 mm
0 cm
Aug
13 °C
16 °C
11 km/h
33 mm
0 cm
Sep Current
16 °C
19 °C
12 km/h
33 mm
0 cm
Oct
19 °C
20 °C
10 km/h
33 mm
0 cm
Nov
19 °C
21 °C
8 km/h
33 mm
0 cm
Dec
19 °C
21 °C
6 km/h
33 mm
0 cm
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Metric (°C, km/h)