Climate in Cruzeiro Do Sul (Acre)

The climate of Cruzeiro do Sul is tropical, with a long rainy season from October to May and a relatively dry season from June to September. The sun doesn't shine often.
The city is located in the extreme west of Brazil, in the state of Acre, at 7 degrees south latitude and 200 meters (650 feet) above sea level. We are in the Amazon rainforest. Just to the south of the city flows the Juruá River, a tributary of the Amazon River. In February 2021, during particularly heavy rains that can sometimes occur in the austral summer, the river flooded the city.
It is generally hot even in the austral winter, however, cool air can sometimes arrive from the south, bringing daytime temperatures around or below 20 °C (68 °F). For example, in July 2010, when it snowed in Buenos Aires, there were a few cool days, and in particular, a rainy day, with a minimum of 13 °C (55 °F) and a maximum of 14 °C (57 °F).

Best Time

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The best time to visit Cruzeiro do Sul is from June to September, being the relatively dry season, with a preference for June and July, as August and September are very hot months.

Cruzeiro Do Sul - Climate data

In Cruzeiro Do Sul, the average temperature of the coldest month (July) is of 26.1 °C (79 °F), that of the warmest month (October) is of 27.8 °C (82.1 °F). Here are the average temperatures.
Precipitation amounts to 2165 millimeters (85.2 inches) per year: it is therefore abundant. It ranges from 60 mm (2.4 in) in the driest month (July) to 295 mm (11.6 in) in the wettest one (March). Here is the average precipitation.
There are on average around 1340 sunshine hours per year. Here are the average hours of sunshine per day.

Cruzeiro Do Sul - Weather by month

Based on the period 1991-2020

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January is generally a warm to hot, muggy month. The average temperature is of 27.2 °C (81 °F), with a minimum of 22.9 °C (73.2 °F) and a maximum of 31.5 °C (88.7 °F).
On the coldest nights of the month, the temperature usually drops to around 21.5 °C (70.5 °F).
On the warmest days of the month, the temperature usually reaches around 34.5 °C (94.5 °F).
Precipitation amounts to 245 mm (9.6 in), distributed over 17 days.
The day lasts on average 12 hours and 30 minutes.
There are on average 2.5 hours of sunshine per day. So, the sun shines 21% of the time.
The average humidity is 83%. Hence, the air is normally humid.
The average wind speed is 5 kph (3 mph).

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February is generally a warm to hot, muggy month. The average temperature is of 27.3 °C (81 °F), with a minimum of 22.9 °C (73.2 °F) and a maximum of 31.7 °C (89 °F).
On the coldest nights of the month, the temperature usually drops to around 21.5 °C (70.5 °F).
On the warmest days of the month, the temperature usually reaches around 34.5 °C (94.5 °F).
Precipitation amounts to 260 mm (10.2 in), distributed over 17 days.
The day lasts on average 12 hours and 20 minutes.
There are on average 2 hours of sunshine per day. So, the sun shines 18% of the time.
The average humidity is 83%. Hence, the air is normally humid.
The average wind speed is 4 kph (3 mph).

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March is generally a warm to hot, muggy month. The average temperature is of 27.2 °C (81 °F), with a minimum of 23 °C (73.3 °F) and a maximum of 31.5 °C (88.6 °F).
On the coldest nights, the temperature usually drops to around 21 °C (70 °F).
On the warmest days, the temperature usually reaches around 34.5 °C (94 °F).
Precipitation amounts to 295 mm (11.6 in), distributed over 18 days.
The day lasts on average 12 hours and 5 minutes.
There are on average 2.5 hours of sunshine per day. So, the sun shines 20% of the time.
The average humidity is 84%. Hence, the air is normally humid.
The average wind speed is 4 kph (3 mph).

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April is generally a warm to hot, muggy month. The average temperature is of 27.3 °C (81 °F), with a minimum of 22.8 °C (73.1 °F) and a maximum of 31.7 °C (89 °F).
On the coldest nights, the temperature usually drops to around 20.5 °C (68.5 °F).
On the warmest days, the temperature usually reaches around 35 °C (94.5 °F).
Precipitation amounts to 235 mm (9.3 in), distributed over 15 days.
The day lasts on average 11 hours and 55 minutes.
There are on average 3 hours of sunshine per day. So, the sun shines 25% of the time.
The average humidity is 83%. Hence, the air is normally humid.
The average wind speed is 4 kph (2 mph).

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May is generally a warm to hot, muggy month. The average temperature is of 26.6 °C (80 °F), with a minimum of 22.1 °C (71.8 °F) and a maximum of 31.1 °C (87.9 °F).
On the coldest nights, the temperature usually drops to around 18.5 °C (65.5 °F).
On the warmest days, the temperature usually reaches around 34.5 °C (94 °F).
Precipitation amounts to 155 mm (6.1 in), distributed over 12 days.
The day lasts on average 11 hours and 50 minutes.
There are on average 4 hours of sunshine per day. So, the sun shines 33% of the time.
The average humidity is 82%. Hence, the air is normally humid.
The average wind speed is 4 kph (3 mph).

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June is generally a warm to hot, muggy month. The average temperature is of 26.2 °C (79 °F), with a minimum of 21.4 °C (70.4 °F) and a maximum of 31 °C (87.8 °F).
On the coldest nights, the temperature usually drops to around 18 °C (64.5 °F).
On the warmest days, the temperature usually reaches around 34 °C (93 °F).
Precipitation amounts to 90 mm (3.5 in), distributed over 7 days.
The day lasts on average 11 hours and 40 minutes.
There are on average 4 hours of sunshine per day. So, the sun shines 34% of the time.
The average humidity is 80%. Hence, the air is normally humid.
The average wind speed is 4 kph (3 mph).

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July, the least warm month of the year, is generally a warm to hot, muggy month. The average temperature is of 26.1 °C (79 °F), with a minimum of 20.6 °C (69.1 °F) and a maximum of 31.6 °C (88.9 °F).
On the coldest nights of the month, the temperature usually drops to around 16 °C (61 °F).
On the warmest days of the month, the temperature usually reaches around 34.5 °C (94.5 °F).
Precipitation amounts to 60 mm (2.4 in), distributed over 6 days.
The day lasts on average 11 hours and 40 minutes.
There are on average 6 hours of sunshine per day. So, the sun shines 50% of the time.
The average humidity is 77%. Hence, the air is normally humid.
The average wind speed is 4 kph (3 mph).

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August is generally a warm to hot, muggy month. The average temperature is of 27 °C (81 °F), with a minimum of 20.9 °C (69.7 °F) and a maximum of 33 °C (91.5 °F).
On the coldest nights of the month, the temperature usually drops to around 16.5 °C (62 °F).
On the warmest days of the month, the temperature usually reaches around 36 °C (97 °F).
Precipitation amounts to 75 mm (3 in), distributed over 6 days.
The day lasts on average 11 hours and 55 minutes.
There are on average 5 hours of sunshine per day. So, the sun shines 44% of the time.
The average humidity is 71%. Hence, the air is normally humid.
The average wind speed is 4 kph (3 mph).

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September is generally a very hot, muggy month. The average temperature is of 27.7 °C (82 °F), with a minimum of 21.8 °C (71.3 °F) and a maximum of 33.5 °C (92.3 °F).
On the coldest nights, the temperature usually drops to around 18 °C (64 °F).
On the warmest days, the temperature usually reaches around 37 °C (98 °F).
Precipitation amounts to 115 mm (4.5 in), distributed over 8 days.
The day lasts on average 12 hours and 5 minutes.
There are on average 4.5 hours of sunshine per day. So, the sun shines 37% of the time.
The average humidity is 74%. Hence, the air is normally humid.
The average wind speed is 5 kph (3 mph).

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October, the hottest month of the year, is generally a very hot, muggy month. The average temperature is of 27.8 °C (82 °F), with a minimum of 22.6 °C (72.8 °F) and a maximum of 33 °C (91.3 °F).
On the coldest nights, the temperature usually drops to around 20.5 °C (69 °F).
On the warmest days, the temperature usually reaches around 36.5 °C (98 °F).
Precipitation amounts to 190 mm (7.5 in), distributed over 13 days.
The day lasts on average 12 hours and 20 minutes.
There are on average 4 hours of sunshine per day. So, the sun shines 33% of the time.
The average humidity is 78%. Hence, the air is normally humid.
The average wind speed is 4 kph (3 mph).

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November is generally a very hot, muggy month. The average temperature is of 27.7 °C (82 °F), with a minimum of 23.1 °C (73.6 °F) and a maximum of 32.3 °C (90.2 °F).
On the coldest nights, the temperature usually drops to around 20.5 °C (69 °F).
On the warmest days, the temperature usually reaches around 36 °C (96.5 °F).
Precipitation amounts to 220 mm (8.7 in), distributed over 15 days.
The day lasts on average 12 hours and 30 minutes.
There are on average 3.5 hours of sunshine per day. So, the sun shines 27% of the time.
The average humidity is 80%. Hence, the air is normally humid.
The average wind speed is 4 kph (3 mph).

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December is generally a warm to hot, muggy month. The average temperature is of 27.3 °C (81 °F), with a minimum of 23 °C (73.4 °F) and a maximum of 31.6 °C (88.9 °F).
On the coldest nights of the month, the temperature usually drops to around 20.5 °C (69.5 °F).
On the warmest days of the month, the temperature usually reaches around 34.5 °C (94 °F).
Precipitation amounts to 230 mm (9.1 in), distributed over 17 days.
The day lasts on average 12 hours and 35 minutes.
There are on average 2.5 hours of sunshine per day. So, the sun shines 22% of the time.
The average humidity is 83%. Hence, the air is normally humid.
The average wind speed is 5 kph (3 mph).