The best times to visit Petrópolis for ideal weather are
May 7th to October 7th
based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.
Petrópolis Travel Guide
Weather in Petrópolis
Average temperatures in Petrópolis vary very little and are extremely temperate all year. The area is in the top 5 percent of tourist destinations for pleasant weather. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Petrópolis, the hottest months are February, January, and then March. See average monthly temperatures below. The warmest time of year is generally early February where highs are regularly around 68.5°F (20.3°C) with temperatures rarely dropping below 56.5°F (13.6°C) at night.
Petrópolis Temperatures (Fahrenheit)
Petrópolis Temperatures (Celsius)
The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.
Petrópolis Perceived Temperature (F)
Petrópolis Perceived Temperature (C)
Average Petrópolis Temperatures by Month
Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.
|Month||Avg. High (°F)||Avg. Mean (°F)||Avg. Low (°F)|
|Month||Avg. High (°C)||Avg. Mean (°C)||Avg. Low (°C)|
Precipitation (Rain or Snow)
If dry weather is what you’re after, the months with the lowest chance of precipitation in Petrópolis are November, December, and then September. The lowest chance of rain or snow occurs around mid-January. For example, on the week of January 15th there are only 0 days of precipitation on average. By contrast, it’s most likely to rain or snow in mid-November with an average of 0.7 days with significant precipitation the week of November 12th.
When can you find snow in Petrópolis? Weather stations report no annual snow. Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.
Chance of Precipitation
The graph below shows the % chance of rainy and snowy days in Petrópolis.
Snow on the Ground
The graph below shows the average snow on the ground in Petrópolis (in).
Average Rain and Snow by Month
|Month||Daily Chance of Rain||Average Snow Depth (in)||Total Precipitation (in)|
|Month||Daily Chance of Rain||Average Snow Depth (cm)||Total Precipitation (cm)|
Humidity and Wind
Petrópolis has slightly high to average humidity compared to most tourist destinations. The least humid month is February (67.9% relative humidity), and the most humid month is April (76.4%).
Wind in Petrópolis is usually moderate. The windiest month is October, followed by September and November. October’s average wind speed of around 6.1 knots (7 MPH or 11.3 KPH) is considered “light breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in early September where average top sustained speeds reach 12 knots, which is considered a moderate breeze.
Relative Humidity (%)
The graph below shows the average % humidity by month in Petrópolis.
The graph below shows wind speed (max and average) in knots.
Average Wind Speeds
Show Wind Speeds
All wind speeds are in knots.
|Month||Avg. Wind||Meaning (Beaufort)||Avg. Maximum Sustained Wind||Meaning (Beufort)|
|Jan||5.4||a light breeze||10.8||a gentle breeze|
|Feb||5.4||a light breeze||11||a moderate breeze|
|Mar||5.2||a light breeze||10.5||a gentle breeze|
|Apr||4.9||a light breeze||10.1||a gentle breeze|
|May||4.6||a light breeze||9.1||a gentle breeze|
|Jun||4.5||a light breeze||9.2||a gentle breeze|
|Jul||4.7||a light breeze||9.7||a gentle breeze|
|Aug||5.3||a light breeze||10.5||a gentle breeze|
|Sep||5.8||a light breeze||11.5||a gentle breeze|
|Oct||6.1||a light breeze||11.7||a moderate breeze|
|Nov||5.8||a light breeze||11.3||a gentle breeze|
|Dec||5.6||a light breeze||11.1||a moderate breeze|
Show Relative Humidity by Month
|Month||Avg. Relative Humidity|
Is it Safe to Travel to Petrópolis?
As of 5/29/2017 there are travel warnings for Brazil; exercise a high degree of caution. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories.
Overall Petrópolis Travel Experience by Season
Fall (March through May)
Humidity and temperatures combine to make this season feel warm. Highs range from 66.1°F (18.9°C) and 59.2°F (15.1°C) with colder temperatures in the later months. Rain is rare with 0 to 1 days of precipitation per month. Fall is slow/unreported for tourism, which makes it a good time for those looking for deals.
Winter (June through August)
The middle-year months have very comfortable weather with high temperatures that are comfortable. These months see moderate precipitation with 0 to 1 days of precipitation per month. June – August is slow/unreported season for tourism in Petrópolis, so lodging and other accommodations may cost as much as usual.
Spring (September through November)
Spring daily highs range from 63.3°F (17.4°C) and 60.4°F (15.8°C), which will feel very nice given the humidity and wind. It rains or snows a small amount: 1 to 3 days per month. Tourism is slow/unreported during these months due to the weather, so hotels may be normally priced.
Summer (December through February)
Weather is somewhat warm this time of year in Petrópolis to be enjoyable for warm weather travelers. The average high during this season is between 68.5°F (20.3°C) and 64.2°F (17.9°C). On average, it rains or snows a normal amount: 0 to 2 times per month. These times of year are slow/unreported with tourists.