INMET: September rainfall was low in northern Brazil and high in the south
The institute reported below-average rain in the country’s centre-north and above-average totals in the centre-south amid El Niño conditions.
Event / data period: 2026-09
Published: · Updated:
Brazil’s National Institute of Meteorology (INMET) said in an assessment published on 9 October that September 2026 brought low rainfall to the country’s centre-north and above-average rainfall to the centre-south. It noted records in parts of the South region, while some other areas had totals near climatological norms.
In the North region, monthly rainfall exceeded 100 millimetres in areas between Acre and southern Amazonas. INMET also reviewed areas that recorded above-average temperatures. The release summarizes observations for the past month; it is not a new forecast or proof that El Niño alone caused the conditions.
Data
September 2026: rainfall topped 100 mm in some northern areas
INMET reported monthly rainfall totals above 100 mm in some areas between Acre and southern Amazonas.
- September rainfall total in some northern areas
- ≥100 millimetres
- 2026-09 · Observed
Methodology
100 mm is recorded as a lower bound for some areas between Acre and southern Amazonas; it is not a national Brazil total. The reference period is September 2026.
Updated:
Subjects and places
Subject proposals
- Weather phenomenaSuggested
- Subject suggested from the title or summary: El Niñoportal.inmet.gov.br ↗
- EnvironmentSuggested
- Preserved editorial category/topic; broad candidate onlyportal.inmet.gov.br ↗
Geographic references
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- Brazil · Place role: Coverage · Place type: Country or area · Location precision: RegionalEvidence
- Explicit preserved editorial country/region; no city or national centroid inferredportal.inmet.gov.br ↗