Daily brief · Brazil

Boa Vista Oct 18, 2026

Today's edition is in progress.

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

A heavy rain day could hit

low

A single day could bring around 5.4mm of rain on 2026-10-19 — close to the local heavy-rain reference for this time of year (around 11.1mm in a day). This comparison adds historical context; it does not assess impacts on a specific activity.

Reading evidence

Reading calculated Oct 18, 2026, 6:03 AM UTC.

Valid until Oct 23, 2026, 6:03 AM UTC.

Source: Open-Meteo.

Forecast period: 2026-10-18 to 2026-10-24.

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

A dry stretch is forming

extreme

10 dry days in a row could start 2026-10-22. 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 18, 2026, 6:03 AM UTC.

Valid until Oct 23, 2026, 6:03 AM UTC.

Source: Open-Meteo.

agriculture

Heat is building above the usual range

low

Daily highs may average around 35.2°C over the next week — above the 33.8°C typical for this time of year. Outdoor work, livestock, and crops in flowering can come under stress.

Reading evidence

Reading calculated Oct 18, 2026, 6:03 AM UTC.

Valid until Oct 25, 2026, 6:03 AM UTC.

Source: Open-Meteo.

Forecast period: 2026-10-18 to 2026-10-24.

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

Rainfall is trending above the usual

low

Around 7.1mm of rain may fall in the next 48 hours — above the 1.7mm typical for this period. Field access, drying, and outdoor logistics may be affected.

Reading evidence

Reading calculated Oct 18, 2026, 6:03 AM UTC.

Valid until Oct 20, 2026, 6:03 AM UTC.

Source: Open-Meteo.

Forecast period: 2026-10-18 to 2026-10-19.

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Historical reference window: 10 requested years.

Historical reference window: ±7 calendar days.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

What people were seeing · community field reports

No field observations were posted for this place on Oct 18, 2026.