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Contents
- The climate of Belém
- The best time to visit Belém
- The worst time to visit Belém
- Spring weather in Belém
- Summer weather in Belém
- Autumn weather in Belém
- Winter weather in Belém
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average humidity
- Average rainfall
- Average rainfall days
- Average sea temperature
- Average daylight
- Average sunshine
- Average UV index
Climate and monthly weather forecast
The climate of Belém
Belém, Brazil falls under the Af designation in the Köppen climate classification. This classification represents a Tropical rainforest climate, which is characterized by high temperature, high humidity, and generous rainfall. Belém, positioned near the equator, is consistent with this tropical category through its weather patterns and climate traits throughout the year.
Month-by-month, Belém presents a temperature range from 21.6°C (70.9°F) on the lower end to an upper of 32.3°C (90.1°F). These temperature levels are relatively stable, evidencing the lack of dramatic shifts between seasons that are typical to equatorial regions.
In terms of humidity, the values remain consistently high throughout the year, ranging from 83 to 91%. This coincides with the tropical rainforest categorization, as these areas are known for their high humidity levels.
Rainfall in Belém is also substantial, most profound in March with 447mm (17.6") and least in October with 115mm (4.53"). A significant rainy period is noticed between January to May, with the subsequent months witnessing a reduction in rainfall. The number of rainy days corroborates this pattern, decreasing from 26 days in March to only 12 days in August, September, and October.
Daylight hours stay fairly consistent, fluctuating between 12 to 12.2 hours per day. Similarly, the UV index remains almost the same throughout the year, staying at 11 or 12. Finally, the sea temperature ranges from 28.2°C (82.8°F) to 28.6°C (83.5°F), a nearly homogenous distribution due to Belém's equatorial location.
Month-by-month, Belém presents a temperature range from 21.6°C (70.9°F) on the lower end to an upper of 32.3°C (90.1°F). These temperature levels are relatively stable, evidencing the lack of dramatic shifts between seasons that are typical to equatorial regions.
In terms of humidity, the values remain consistently high throughout the year, ranging from 83 to 91%. This coincides with the tropical rainforest categorization, as these areas are known for their high humidity levels.
Rainfall in Belém is also substantial, most profound in March with 447mm (17.6") and least in October with 115mm (4.53"). A significant rainy period is noticed between January to May, with the subsequent months witnessing a reduction in rainfall. The number of rainy days corroborates this pattern, decreasing from 26 days in March to only 12 days in August, September, and October.
Daylight hours stay fairly consistent, fluctuating between 12 to 12.2 hours per day. Similarly, the UV index remains almost the same throughout the year, staying at 11 or 12. Finally, the sea temperature ranges from 28.2°C (82.8°F) to 28.6°C (83.5°F), a nearly homogenous distribution due to Belém's equatorial location.
The best time to visit Belém
With stable temperatures, the best time to visit Belém often hinges on rainfall preferences. The dry period, spanning June to October with rainfall between 115mm (4.53") to 156mm (6.14") and a reduced 12 to 15 rainy days, presents comfortable conditions for exploration and sightseeing. This period is also marked with an increase in sunshine hours, reaching a peak of 8.5 hours in August.
The worst time to visit Belém
Though the temperature remains constant, the period from January to May represents the wetter months in Belém. During this period, rainfall ranges from 306mm (12.05") to a hefty 447mm (17.6") while the number of rainy days varies from 23 to 26. This heavy rainfall might disrupt outdoor plans and can make travel conditions less than ideal.
Spring weather in Belém
Although Belém lacks the traditional seasons seen in non-tropical regions, the March to May period may be referenced as the "spring" phase. This period is characterized by substantial rainfall, which peaks at 447mm (17.6") in March and gradually decreases to 306mm (12.05") in May. The average high temperature hovers around a warm 31.3°C (88.3°F) to 31.7°C (89.1°F), while the 'lowest' average temperature ranges from 21.7°C (71.1°F) to 22.6°C (72.7°F).
Summer weather in Belém
June to August represents the 'summer' period in Belém. This stretch is noticeably drier with rainfall reducing noticeably from 155mm (6.1") in June to 126mm (4.96") in August. Simultaneously, the number of daily sunshine hours increases and peaks at 8.5 hours in August. Average high temperatures are consistently warm, hovering around 31.7°C (89.1°F) to 32.1°C (89.8°F).
Autumn weather in Belém
During the 'autumn' phase from September to November, Belém experiences further decreases in rainfall, with values from 145mm (5.71") to 118mm (4.65"). The daily sunshine hours remain appreciably generous, ranging from 7.7 hours to 6.8 hours. The temperature continues to be consistent; the average high temperature ranges from 32.3°C (90.1°F) to 32.1°C (89.8°F) and the average low temperature revolves around 21.6°C (70.9°F) to 21.9°C (71.4°F).
Winter weather in Belém
Taking the last part of the year as 'winter', December to February in Belém records an upswing in rainfall, increasing from a moderate 203mm (7.99") in December to 413mm (16.26") in February. Sunshine hours decrease to 4.5 hours by February. A consistent weather feature is the moderately high temperatures, with highs fluctuating from 30.9°C (87.6°F) to 30.5°C (86.9°F) and lows wavering from 22.1°C (71.8°F) to 22.2°C (72°F) during this period.
Weather in January
Belém starts the year with a warm and humid climate. January reveals the city's characteristic tropical weather, offering days filled with humidity and copious rainfall. Being only slightly hotter than the previous month of December, which clocks a pleasant balance of heat and rain. Weather in January »
Weather in February
Experiencing the tropical monsoon climate, February in Belém remains warm and humid. Transitioning from January, February perceives a slight increase in the city's overall rainfall, reaching a level of 413mm (16.26"). This kind of intense moisture, characteristic of a monsoon climate, makes for the lush green cityscape. Weather in February »
Weather in March
The tropical character of the city remains in full swing in March, continuing with an overall warmth and the usual elevated humidity levels. Amidst consistent wet and humid conditions, the city experiences the highest rainfall of the year measuring 447mm (17.6") this month. Weather in March »
Weather in April
As the city moves into April, a minor reduction in rainfall signals the start of a less wet season. Transitioning into drier months after March, April still encounters substantial rainfall in the city, keeping up with the tropical monsoon climate. Weather in April »
Weather in May
Belém's weather shows a continued downward trend in rainfall as it moves into May suggesting the arrival of the drier season. Compared to the past several months, May sees a significant decrease in rainfall giving the city a refreshing turn in climate. Weather in May »
Weather in June
Encountering warm temperature and reduced rainfall, June in Belém marks the beginning of the drier season. A steady decrease in rainfall is observed from the mid-year, compared to the previous months with immense downpour. The reduction in rainfall coincides with the commencement of a period of fewer overcast days, making it ideal for outdoor opportunities. Weather in June »
Weather in July
July in Belém features prominently warm and mostly dry weather conditions, typically observed in tropical climates. A further decrease in rainfall compared to June, signalling it as one of the driest months of the year at 156mm (6.14"). Weather in July »
Weather in August
As the driest month of the year, August in Belém is recognised for its warm, humid and generally clear weather. The lowest rainfall of the year, about 126mm (4.96"), significantly reduces from July’s precipitation. The prevalence of sunny weather along with warm temperatures presents an enticing prospect for tourists and locals alike. Weather in August »
Weather in September
The month of September in Belém continues with desirable dry and warm weather, despite a slight increase in rainfall from August, which measures up to 145mm (5.71"). The city's vibrant landscapes, reinvigorated after the rains of previous months, make for a stunning visual paradise. Weather in September »
Weather in October
In October, the city of Belém steps into the wetter season, with a slight increase in rainfall compared to the previous month. Despite the rise in showers, the weather remains predominantly warm, maintaining the tropical feel, typical of this city. Weather in October »
Weather in November
Strongly characterised by the tropical monsoon climate, November experiences more wet days compared to October, setting the trend for the subsequent wetter months. While the rainfall escalates up to 118mm (4.65"), Belém's inherent warmth remains a constant throughout the year, ensuring a uniformly tropical weather. Weather in November »
Weather in December
Capially of Pará, Belém, rounds off the year in December with a rise in the rainfall, measuring at 203mm (7.99"). As the city moves from November to December, there is a significant increase in the volume of rainfall. Despite the high precipitation levels, a steady rise in temperature complements the city's tropical character. Weather in December »
Updated: Feb 2, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How many days does it rain in Belém?
In Belém, during the entire year, the rain falls for 221 days and collects up to 2922mm (115.04") of precipitation.
When is the sea warmest in Belém?
The month with the warmest seawater is January, with an average sea temperature of 28.6°C (83.5°F).
What are the months with the highest UV index in Belém?
The months with the highest UV index in Belém are January through May, August through December, with an average maximum UV index of 12.
What are the most humid months in Belém?
The months with the highest humidity are February through April, with an average relative humidity of 91%.
What is the coldest time of year in Belém?
The lowest temperatures in Belém are recorded in March, with averages reaching a high of 30.4°C (86.7°F) and a low of 22.4°C (72.3°F).
What is the rainiest month in Belém?
March is the month with the most rainfall. Rain falls for 26 days and accumulates 447mm (17.6") of precipitation.
What is the month with the least sunshine in Belém?
With an average of 3.3h of sunshine, March has the least sunshine of the year in Belém.
What is the month with the shortest days in Belém?
The month with the shortest days in Belém is June, with an average of 12h and 0min of daylight.
What is the month with the lowest UV index in Belém?
June and July, with an average maximum UV index of 11, are months with the lowest UV index.
What month has the most sunshine in Belém?
August has the most sunshine of the year in Belém, with an average of 8.5h of sunshine.
What are the months with the coldest sea water in Belém?
September, October and December, with an average sea temperature of 28.2°C (82.8°F), are months with the coldest seawater.
What is the least humid month in Belém?
The months with the lowest humidity in Belém are October and November, with an average relative humidity of 83%.
What is the driest month in Belém?
The month with the least rainfall is October, when the rain falls for 12 days and typically collects 115mm (4.53") of precipitation.
What is the hottest time of year in Belém?
In Belém, November registers the highest temperatures, averaging 32.3°C (90.1°F) at the peak and 21.9°C (71.4°F) at the lowest.
When are the longest days in Belém?
The month with the longest days is December, with an average of 12h and 12min of daylight.
Is there Daylight Saving Time (DST) in Belém?
Belém, Brazil, does not observe Daylight Saving Time (DST). -03 timezone is used throughout the entire year.
Average temperature
Belém, Brazil
The warmest month (with the highest average high temperature) is November (32.3°C).
The month with the lowest average high temperature is March (30.4°C).
The months with the highest average low temperature are April and May (22.6°C).
The coldest month (with the lowest average low temperature) is October (21.6°C).
Average humidity
Belém, Brazil
The months with the highest relative humidity are February, March and April (91%).
The months with the lowest relative humidity are October and November (83%).
Average rainfall
Belém, Brazil
- Average rainfall in January:
385.5mm - Average rainfall in February:
412.5mm - Average rainfall in March:
447.1mm - Average rainfall in April:
353.4mm - Average rainfall in May:
305.5mm - Average rainfall in June:
155.3mm
- Average rainfall in July:
155.5mm - Average rainfall in August:
126.4mm - Average rainfall in September:
144.8mm - Average rainfall in October:
114.6mm - Average rainfall in November:
118.2mm - Average rainfall in December:
203mm
The wettest month (with the highest rainfall) is March (447.1mm).
The driest month (with the least rainfall) is October (114.6mm).
Average rainfall days
Belém, Brazil
- Average rainfall days in January:
24 days - Average rainfall days in February:
24 days - Average rainfall days in March:
26 days - Average rainfall days in April:
24 days - Average rainfall days in May:
23 days - Average rainfall days in June:
16 days
- Average rainfall days in July:
15 days - Average rainfall days in August:
12 days - Average rainfall days in September:
15 days - Average rainfall days in October:
12 days - Average rainfall days in November:
13 days - Average rainfall days in December:
17 days
The month with the highest number of rainy days is March (26 days).
The months with the least rainy days are August and October (12 days).
Average sea temperature
Belém, Brazil
The best month for swimming (with the highest average sea temperature) is January (28.6°C).
The coldest months (with the lowest average sea temperature) are September, October and December (28.2°C).
Average daylight / Average sunshine
Belém, Brazil
- Average daylight in January:
12h and 1min - Average daylight in February:
12h and 1min - Average daylight in March:
12h and 1min - Average daylight in April:
12h and 1min - Average daylight in May:
12h and 1min - Average daylight in June:
12h and 0min
- Average daylight in July:
12h and 0min - Average daylight in August:
12h and 1min - Average daylight in September:
12h and 1min - Average daylight in October:
12h and 1min - Average daylight in November:
12h and 1min - Average daylight in December:
12h and 1min
The month with the longest days is December (Average daylight: 12h and 12min).
The month with the shortest days is June (Average daylight: 12h and 0min).
- Average sunshine in January:
4h and 3min - Average sunshine in February:
3h and 4min - Average sunshine in March:
3h and 2min - Average sunshine in April:
4h and 1min - Average sunshine in May:
5h and 5min - Average sunshine in June:
7h and 3min
- Average sunshine in July:
8h and 1min - Average sunshine in August:
8h and 3min - Average sunshine in September:
7h and 4min - Average sunshine in October:
7h and 3min - Average sunshine in November:
6h and 5min - Average sunshine in December:
5h and 5min
The month with the most sunshine is August (Average sunshine: 8h and 30min).
The month with the least sunshine is March (Average sunshine: 3h and 18min).
Average UV index
Belém, Brazil
The months with the highest UV index are January, February, March, April, May, August, September, October, November and December (UV index 12).
The months with the lowest UV index are June and July (UV index 11).
