Daily brief · Brazil

São Luís Oct 4, 2026

Today's edition is in progress.

Weather-risk signals · signal engine (Open-Meteo)

A dry stretch is forming

extreme

11 dry days in a row could start 2026-10-06. A dry day here means 1mm of rain or less; the important number is the length of the run. Crops in flowering or fruit-set windows are most exposed.

Reading evidence

Reading calculated Oct 4, 2026, 6:00 PM UTC.

Valid until Oct 9, 2026, 12:01 AM UTC.

Source: Open-Meteo.

soy farmers · agriculture · sugarcane growers · cotton growers

Heat is building above the usual range

high

Daily highs may average around 33.3°C over the next week — above the 30.6°C typical for this time of year. Outdoor work, livestock, and crops in flowering can come under stress.

Reading evidence

Reading calculated Oct 4, 2026, 6:00 PM UTC.

Valid until Oct 11, 2026, 12:01 AM UTC.

Source: Open-Meteo.

Forecast period: 2026-10-04 to 2026-10-10.

Forecast source: open-meteo.

Years with usable data: 10 of 10.

Historical dataset: era5.

Samples: 150.

Method: heat-stress-avg-v1-2026-09-22.

outdoor farmers · tourism · energy demand · soy farmers · sugarcane growers · cotton growers

Rainfall is trending above the usual

extreme

Around 5.4mm of rain may fall in the next 48 hours — above the 0.5mm typical for this period. Field access, drying, and outdoor logistics may be affected.

Reading evidence

Reading calculated Oct 4, 2026, 6:00 PM UTC.

Valid until Oct 6, 2026, 6:00 PM UTC.

Source: Open-Meteo.

Forecast period: 2026-10-04 to 2026-10-05.

Forecast source: open-meteo.

Historical reference window: 10 requested years.

Historical reference window: ±7 calendar days.

Years with usable data: 10 of 10.

Historical dataset: era5.

Samples: 150.

Method: rolling-sum-v2-anchor-lookback-2026-09-21.

farmers · tourism · logistics · soy farmers · sugarcane growers · cotton growers

What people were seeing · community field reports

No field observations were posted for this place on Oct 4, 2026.

Market context · futures market

sugar · high 52w · 7d +13.9%