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Macapá Rainfall & Precipitation: Monthly Averages and Year-Round Insights

This page shows the average amount of rainfall per month in Macapá. The numbers are calculated over a 30-year period to provide a reliable average. Now, let’s explore all the details to give you a full picture.

Macapá is known for its substantial rainfall, with annual precipitation reaching 2491 mm.

Monthly Precipitation Levels

The average number of days each month with precipitation (> 0.2 mm)

Significant seasonal changes in precipitation occur throughout the year. During the wet season, April receives substantial rainfall, averaging 400 mm of precipitation, recorded across 28 rainy days.

In contrast, the drier season, October brings less rainfall, with 26 mm over 8 rainy days.

April, the wettest month, has a maximum daytime temperature of 30°C. The city receives 127 hours of sunshine in this period. During the driest month October you can expect a temperature of 34°C. For more detailed insights into the city’s temperatures, visit our Macapá Temperature page.

Annual Precipitation in Brazil

The map below shows the annual precipitation across Brazil. You can also select the different months in case you are interested in a specific month.

Annual
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Annual average
precipitation: 2491 mm

More information

Legend heavy rainfall high moderate low almost none
Heavy annual rainfall has been defined as more than 1000 mm precipitation. High: 600 mm to 1000 mm. Moderate: 250 mm to 600 mm. Low: less than 250 mm.

Amsterdam Precipitation Compared World Wide

Macapá’s average annual precipitation is 2491 mm. Let’s compare this to some popular worldwide tourist destinations:

Chicago, USA, sees an annual precipitation of 1062 mm, with rain and snow contributing to its humid climate.

Meanwhile, Buenos Aires, Argentina, enjoys a humid subtropical climate with 1000 mm of annual rainfall, mostly in the summer.

Perth, Australia, receives 565 mm of rainfall annually, mostly during the winter months.

Ho Chi Minh City, Vietnam, receives 1955 mm of annual rainfall, with a pronounced wet season from May to November, typical of its tropical monsoon climate.

How is Precipitation Measured?

Precipitation amounts are measured using specific gauges installed at weather stations, collecting both rain and snow and any other type of precipitation. Rainfall is measured directly in millimeters, while that from snow and ice is obtained by melting it. Automated systems often incorporate heaters to make this easier.

Information from these stations is transmitted via Wi-Fi, satellite, GPS, or telephone connections to central monitoring networks. This information is immediately updated and integrated into weather models and forecasts.

Interesting weather facts

  • Mawsynram in India is noted as being the wettest place on earth, with over 11 meters of rain falling every year.
  • In contrast, Antofagasta in Chile is among the driest places on the planet, getting less than 0.1mm per year, with some years recording virtually no rainfall.
  • Nearly 1,650 thunderstorm cells are estimated over the planet at any given time.

For more detailed information about Macapá’s weather, including sunshine hours, humidity levels, and temperature data, visit our Macapá Climate page.


Current rainfall in Macapá

Tuesday
25 Feb
Rain
Rain
26°C
7.7 mm
Wednesday
26 Feb
Partly cloudy
Partly cloudy
29°C
0.2 mm
Thursday
27 Feb
Light rain
Light rain
29°C
0.9 mm

Interested in more climate information?

This site provides you with all the information you need about the climate in Macapá.

Our site offers climate and forecast data for every country in the world. Are you going to Brazil? On this website you can find historical weather averages for many cities in Brazil. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.