In this report, we will analyze the current weather situation in Vietnam, observing the possible impacts for the development of the 24/25 crop in the country.
First, it’s important to establish the relationship between weather and changes in yields: Figure 1 shows the correlation between cumulative rainfall and yields, considering data from the past 7 years, shown in a 10-day moving average.
Correlation naturally increases starting in April, reaching a peak in the first week of July. The largest gain in correlation happens throughout April, which demands attention as we reach the end of the month, since we have diminishing returns from correlation from that moment on.
After July, the metric starts to decrease toward the end of development, since further rainfall levels closer to the harvest aren’t as relevant as during flowering of the cherry filling stage.
Therefore, there are still a few months ahead of the current period to reach peak correlation between precipitation and yields. And that is the relationship being observed in Figure 2: higher precipitation levels historically correlate to year-over-year growth in total yields. Of course, other factors will also kick in, but the consistency in rainfall levels presents itself as one of the key major factors to be analyzed in this period.