Climate Insights for Cacoal Airport

Cacoal, Rondônia, Brazil

Hottest
September
34°C peak
Coldest
July
19°C low
Wettest
February
291mm rain
Best to Visit
June
Mild temps & low rain

Climate Overview

The climate in Cacoal Airport is hot. The average annual temperature is 26°C and approximately 1683mm of precipitation falls per year. February is the wettest month, receiving around 291mm of rainfall. Cacoal Airport 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: September, August, October. The coldest months are July, June, August, when temperatures can drop to 19°C.

Temperature

10° 20° 30° 40° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: 30° Average: 25° Min: 23° Feb Max: 29° Average: 25° Min: 23° Mar Max: 30° Average: 25° Min: 23° Apr Max: 30° Average: 26° Min: 23° May Max: 30° Average: 25° Min: 21° Jun Max: 31° Average: 25° Min: 20° Jul Max: 33° Average: 25° Min: 19° Aug Max: 34° Average: 27° Min: 21° Sep Max: 34° Average: 28° Min: 23° Oct Max: 33° Average: 27° Min: 23° Nov Max: 31° Average: 26° Min: 23° Dec Max: 30° Average: 26° Min: 23°
Max
Average
Min

Cacoal Airport sees moderate temperature variation throughout the year, ranging from 19°C to 34°C. The warmest month is September, when average highs reach 34°C and the mean temperature sits around 28°C. July is the coolest month, with minimum temperatures around 19°C and an average of 25°C. On average, daily temperatures fluctuate by about 9°C between overnight lows and afternoon highs.

Precipitation

0mm 50mm 100mm 150mm 200mm 250mm 300mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 258mm Feb Precipitation: 291mm Mar Precipitation: 256mm Apr Precipitation: 145mm May Precipitation: 57mm Jun Precipitation: 14mm Jul Precipitation: 1mm Aug Precipitation: 17mm Sep Precipitation: 48mm Oct Precipitation: 120mm Nov Precipitation: 207mm Dec Precipitation: 270mm
Precipitation

Cacoal Airport is a fairly wet location, receiving approximately 1683mm of precipitation annually, which averages out to around 140mm per month. The wettest month is February, averaging 291mm of rainfall. December and January also tend to see above-average precipitation. The driest month is July, with just 1mm. That's 290mm 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 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Wind Speed: 9km/h Feb Wind Speed: 9km/h Mar Wind Speed: 8km/h Apr Wind Speed: 8km/h May Wind Speed: 9km/h Jun Wind Speed: 9km/h Jul Wind Speed: 10km/h Aug Wind Speed: 10km/h Sep Wind Speed: 10km/h Oct Wind Speed: 9km/h Nov Wind Speed: 9km/h Dec Wind Speed: 9km/h
Wind Speed

Cacoal Airport is relatively calm, with an average annual wind speed of 9km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is August, averaging 10km/h, though still comfortable for most outdoor activities. The calmest conditions occur in April, with average winds dropping to 8km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 2km/h between the calmest and windiest months.

Seasons

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

89 days until Winter

It is currently autumn in Cacoal Airport, which began on March 20, 2026. Cacoal Airport 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 September at around 34°C, while the coldest stretch bottoms out in July near 19°C. Winter is next, beginning on June 21, 2026 — 89 days from now.

Spring

Temperatures range from 23 to 34°C. Rainfall is heavy, totalling around 375mm across the season with a monthly average of 125mm. Winds are generally light, averaging 9km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.

Summer

Temperatures range from 23 to 30°C. Rainfall is heavy, totalling around 819mm across the season with a monthly average of 273mm. Winds are generally light, averaging 9km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.

Autumn

Temperatures range from 21 to 30°C. Rainfall is heavy, totalling around 457mm across the season with a monthly average of 152mm. Winds are generally light, averaging 8km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.

Winter

Temperatures range from 19 to 34°C. Precipitation is minimal, with only around 32mm for the entire season. Winds are generally light, averaging 10km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.

Best Time to Visit

Jan 25°
Feb 25°
Mar 25°
Apr 26°
May 25°
Jun 25°
Jul 25°
Aug 27°
Sep 28°
Oct 27°
Nov 26°
Dec 26°

The best time to visit Cacoal Airport is during June, when the weather is most comfortable for travellers. During these months, average temperatures hover around 25°C with modest rainfall averaging 14mm per month. By contrast, September can be uncomfortably hot with highs reaching 34°C, while July is the coldest period with lows dropping to 19°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 Cacoal Airport 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
23 °C
30 °C
9 km/h
258 mm
0 cm
Feb
23 °C
29 °C
9 km/h
291 mm
0 cm
Mar Current
23 °C
30 °C
8 km/h
256 mm
0 cm
Apr
23 °C
30 °C
8 km/h
145 mm
0 cm
May
21 °C
30 °C
9 km/h
57 mm
0 cm
Jun
20 °C
31 °C
9 km/h
14 mm
0 cm
Jul
19 °C
33 °C
10 km/h
1 mm
0 cm
Aug
21 °C
34 °C
10 km/h
17 mm
0 cm
Sep
23 °C
34 °C
10 km/h
48 mm
0 cm
Oct
23 °C
33 °C
9 km/h
120 mm
0 cm
Nov
23 °C
31 °C
9 km/h
207 mm
0 cm
Dec
23 °C
30 °C
9 km/h
270 mm
0 cm
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Metric (°C, km/h)