Daily brief · Brazil
Record from Oct 11, 2026. Back to current conditions

São Luís Oct 11, 2026

Review recorded on Oct 12, 2026, 6:40 AM UTC.

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

A heavy rain day could hit

extreme

A single day could bring around 5mm of rain on 2026-10-11 — above the local heavy-rain reference for this time of year (around 1mm in a day). This comparison adds historical context; it does not assess impacts on a specific activity.

Reading evidence

Reading calculated Oct 11, 2026, 12:00 PM UTC.

Valid until Oct 16, 2026, 12:00 PM UTC.

Source: Open-Meteo.

Forecast period: 2026-10-11 to 2026-10-17.

Forecast source: open-meteo.

Years with usable data: 10 of 10.

Historical dataset: era5.

Samples: 150.

Method: heavy-rain-percentile-max-v1-2026-09-22.

outdoor events · drainage operators · agriculture · soy farmers · sugarcane growers · cotton growers

A dry stretch is forming

medium

6 dry days in a row could start 2026-10-12. 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 11, 2026, 12:00 PM UTC.

Valid until Oct 16, 2026, 12:00 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 32.3°C over the next week — above the 30.8°C typical for this time of year. Outdoor work, livestock, and crops in flowering can come under stress.

Reading evidence

Reading calculated Oct 11, 2026, 12:00 PM UTC.

Valid until Oct 18, 2026, 12:00 AM UTC.

Source: Open-Meteo.

Forecast period: 2026-10-11 to 2026-10-17.

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 5.5mm 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 11, 2026, 12:00 PM UTC.

Valid until Oct 13, 2026, 6:00 AM UTC.

Source: Open-Meteo.

Forecast period: 2026-10-11 to 2026-10-12.

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Historical reference window: 10 requested years.

Historical reference window: ±7 calendar days.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

Recorded daily weather · Open-Meteo

Rain 3.8 mmMax 31.2 °CMin 25.9 °CGusts 44.3 km/h

Comparison unavailable for this edition.

What people were seeing · community field reports

No field observations were posted for this place on Oct 11, 2026.

Market context · futures market

cotton · surge · 7d +7.2%