The best times to visit Santarem for ideal weather are

January 1st to December 30th

based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.



Other Santarem Travel Info

Weather in Santarem


Average temperatures in Santarem vary very little. Considering humidity, temperatures feel hot all year with a very low chance of rain throughout the year. The area is less temperate than some — in the 34th percentile for pleasant weather — compared to tourist destinations worldwide. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Santarem, the hottest months are October, September, and then November. See average monthly temperatures below. The warmest time of year is generally late September where highs are regularly around 92.5°F (33.6°C) with temperatures rarely dropping below 76.7°F (24.8°C) at night.

Santarem Temperatures (Fahrenheit)


Santarem Temperatures (Celsius)


“Feels-Like” Temperatures

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.

Santarem Perceived Temperature (F)


Santarem Perceived Temperature (C)



Average Santarem 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.

Show Fahrenheit

Month Avg. High (°F) Avg. Mean (°F) Avg. Low (°F)
Jan 87.9 80.6 75.5
Feb 86.5 79.6 74.6
Mar 86.4 79.6 74.7
Apr 86.5 79.7 74.7
May 86.7 79.7 74.5
Jun 87.4 79.8 73.8
Jul 87.6 79.7 73.3
Aug 89.9 81.6 74.3
Sep 91.6 83.3 75.8
Oct 92 83.6 76.3
Nov 91.6 83.2 76.1
Dec 90.2 82.3 76.1

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan 31.1 27 24.2
Feb 30.3 26.4 23.7
Mar 30.2 26.4 23.7
Apr 30.3 26.5 23.7
May 30.4 26.5 23.6
Jun 30.8 26.6 23.2
Jul 30.9 26.5 22.9
Aug 32.2 27.6 23.5
Sep 33.1 28.5 24.3
Oct 33.3 28.7 24.6
Nov 33.1 28.4 24.5
Dec 32.3 27.9 24.5



Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Santarem are January, February, and then March. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around early January. For example, on the week of January 1st there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in mid April with an average of 0 days of significant precipitation the week of April 16th.

When can you find snow in Santarem? 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 Santarem.

Days with precipitation

Snow on the Ground

The graph below shows the average snow on the ground in Santarem (in).

Snow depth

Average Rain and Snow by Month

Show Inches

Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
Jan 0% 0 0
Feb 0% 0 0
Mar 0% 0 0
Apr 3% 0 0.6
May 0% 0 0
Jun 0% 0 0
Jul 0% 0 0
Aug 0% 0 0
Sep 0% 0 0
Oct 0% 0 0
Nov 0% 0 0
Dec 0% 0 0

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 0 0 0
Feb 0 0 0
Mar 0 0 0
Apr 3 0 1.5
May 0 0 0
Jun 0 0 0
Jul 0 0 0
Aug 0 0 0
Sep 0 0 0
Oct 0 0 0
Nov 0 0 0
Dec 0 0 0


Humidity and Wind

Santarem has some very humid months, and above average humidity throughout the year. The least humid month is October (64.3% relative humidity), and the most humid month is May (79.1%).

Wind in Santarem is usually calm. The windiest month is September, followed by October and November. September’s average wind speed of around 6.3 knots (7.3 MPH or 11.7 KPH) is considered “a light breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in late September where average top sustained speeds reach 14.2 knots, which is considered a moderate breeze.

Relative Humidity (%)

The graph below shows the average % humidity by month in Santarem.

Avg. Relative Humidity


The graph below shows wind speed (max and average) in knots.

Max Sustained Wind
Average Daily Wind

Average Wind Speeds

Show Wind Speeds

All wind speeds are in knots. 1 knot = 1.15 MPH or 1.85 KPH.

Month Avg. Wind Avg. Wind Feel Sustained High Wind High Wind Feel
Jan 5.2 Light breeze 12.2 Significant breeze
Feb 4.9 Light breeze 12.1 Significant breeze
Mar 4.6 Light breeze 11.5 Significant breeze
Apr 4.2 Light breeze 11.5 Significant breeze
May 3.9 Barely noticeable 11.4 Significant breeze
Jun 4.2 Light breeze 11.7 Significant breeze
Jul 4.2 Light breeze 12.2 Significant breeze
Aug 5.1 Light breeze 12.6 Significant breeze
Sep 6.3 Light breeze 13.9 Significant breeze
Oct 6.2 Light breeze 13.3 Significant breeze
Nov 6 Light breeze 13.4 Significant breeze
Dec 5.9 Light breeze 13.2 Significant breeze

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 73.4%
Feb 77.1%
Mar 77.8%
Apr 78.1%
May 79.1%
Jun 77.2%
Jul 76.2%
Aug 71.3%
Sep 65.6%
Oct 64.3%
Nov 65.6%
Dec 67.3%


Is it Safe to Travel to Santarem?

Our best data indicates this area is somewhat safe. As of Dec 04, 2023 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. This advisory was last updated on Nov 24, 2023.


The Busiest and Least Crowded Months

The busiest month for tourism in Santarem, Brazil is June, followed by August and November. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit Santarem in March. Those willing to visit at these times will likely find it the least expensive month.

Estimated Tourism by Month


Most Popular Months to Visit

Tourists Seeking Accommodations

Tourism graph is based on Google searches for services used by tourists relative to the rest of the year. Tourism data for this area is extrapolated based on nearby areas. Displayed data is calculated relative to the peak, so a score of 47.5 in March means 47.5% of the tourists vs. June.



Overall Santarem Travel Experience by Season

Fall (March through May)

Humidity and temperatures combine to make this season feel warm. Highs range from 87.1°F (30.6°C) and 85.9°F (29.9°C) with similar temperatures in the later months. Rain is extremely rare with 0 to 1 days of significant precipitation per month. Fall is the slowest 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 quite warm. These months see the least precipitation with about 0 days of precipitation per month. June – August is the busiest season for tourism in Santarem, so lodging and other accommodations may cost more than usual.

Spring (September through November)

Spring daily highs range from 92.5°F (33.6°C) and 90.7°F (32.6°C), which will feel very nice given the humidity and wind. It rains or snows a trivial amount: approximately 0 days per month. Tourism is the second busiest during these months due to the weather, so hotels may be slightly higher priced.

Summer (December through February)

Weather is perfect this time of year in Santarem to be enjoyable for warm weather travelers. The average high during this season is between 90.7°F (32.6°C) and 86.3°F (30.2°C). On average, it rains or snows a insignificant amount: consistently 0 times per month. These times of year are fairly slow with tourists.


Best Times to TravelBrazil › Santarem, Brazil