The Regular Climate Pattern of Brazil

The Regular Climate Pattern of Brazil
Mike Tannura, tStorm Weather - Chicago, Illinois

They say it is best to keep your friends close and your …let’s go with competitors in the soybean market… even closer. Todd Gleason has this story on how weather patterns in Brazil generally unfold year in and year out.

The Brazilian climate is unique…
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The Brazilian climate is unique. It is unlike anything that occurs in the United States. However, this country is poised to become the world’s most productive source of soybeans. It is expected to unseat the U.S. in 2017, though that could happen as early as next year. Farmers in the state of Mato Grosso grow most of soybeans in Brazil. Their winter months, unlike what happens in the United States from New Orleans to Minneapolis and Columbus to Omaha, are bone dry says University of Illinois alum and agricultural meteorologist Mike Tannura.

Tannura :20 ..somewhere around ten inches of rain per month. .

Quote Summary - Remember their winter is in June, July, and August. During that entire period they only receive from one to maybe one-and-one-half inches of rain. You go forward into the middle of their summer, which would be again December, January, and February, and they are getting somewhere around ten inches of rain per month.

Crops in the United States are strained in the summer if more than 6 inches of rain falls per month says Tannura. His Chicago based company, tStorm Weather, specializes in agricultural weather forecasting. During the spring time he says U.S. farmers plant on schedule, by the calendar, when the weather is open. This is not how things work in Brazil.

Tannura :30 …is going to rain, it is a matter of when.

Quote Summary - Since it is basically bone dry during the winter, you need some rain in the beginning of the season to get planting started. If you don’t, the seed will just sit there and it won’t do anything. It needs moisture. They have a very sandy type of soil that is unique to them as compared to us. This is a monsoonal type climate that they move into. They do not see longterm droughts as frequently as happen in the United States or the rest of the world. So it is not a matter of if it is going to rain, it is a matter of when.

A delay in the rainfall doesn’t have a great impact on the first crop planted for the season. This is generally soybeans. However, a delayed planting does have an impact on the second crop Brazilian farmers plant. Sometimes this is corn.

Tannura :13 …rain at the end of its growing season.

Quote Summary - If the early crop, being planted now or shortly, is sown way too late, then the second crop may have problems because it would not get enough rain at the end of its growing season.

The take away then is this. Soybean farmers in Brazil will plant a crop every year. It could be delayed as they wait for rainfall to replenish soil moisture…even deep into December. Brazil rarely suffers growing season droughts, so that first crop is likely to be a good one. The second crop, should the first have gone in late, is far more suspect and could seasonally run out of water.