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Monte Alegre Weather in September
September in Monte Alegre brings very high temperatures, with highs of 31°C (88°F) and nights dropping to 21°C (70°F). Rainfall is very low this month, averaging just 13 mm (0.5 in).
Rainfall in Monte Alegre in September
Records from the past 30 years suggest around 14 days of rain, with 13 mm (0.5 in) average for the month. A fairly balanced picture this month, some wet days but nothing too extreme in terms of intensity.
Temperature in Monte Alegre in September
The excellent temperature in Monte Alegre in September makes it a solid month to visit, with 31°C (88°F) during the day and 21°C (70°F) at night. Sunshine and humidity can make it feel even warmer than the raw temperature suggests. With lows of 21°C (70°F), the nights are warm and generally comfortable.If your ideal day consists of dry skies and pleasant temperatures, July typically offers the best circumstances for Monte Alegre.
Monte Alegre Temperature in September
Min Temperature
21°C (70°F)
Max Temperature
31°C (88°F)
Chance of Rain
45%
Precipitation
13 mm (0.5 in)
Rainy days
14 days
Monte Alegre Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Monte Alegre - and find the best time to visit.
Daily Historical Temperatures
49-year average (1976-2025)
Based on our historical records, temperatures in Monte Alegre typically stay consistent throughout September, with daily highs averaging around 31°C (88°F). Nights are warm, with lows around 22°C (72°F).
Average temperatures in September
Daily Historical Precipitation
49-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather records for Monte Alegre in September
Browse day-by-day weather records for Monte Alegre spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Monte Alegre historical weather extremes in September
The extremes listed below come from historical weather data collected in Monte Alegre from 1999 through 2025.
- Monte Alegre recorded its highest September temperature of 33°C (91°F) on September 30, 2003.
- On September 9, 2014, Monte Alegre saw its coldest September day with temperatures maxing out at 25°C (77°F).
- The coldest night in September in Monte Alegre was on September 9, 2014, with a minimum of 14°C (57°F).
Best Places in Brazil in September
Find out more about the weather in Brazil and which places have the best travel conditions in this month. See all of Brazil in September →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Monte Alegre in September
Warm temperatures in September make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. With minimal rainfall expected, you can leave the rain gear at home.
What To Do in Monte Alegre in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling8/10 -
Walking8/10 -
Camping10/10 -
Outdoor sports8/10
Monte Alegre 3-Day Forecast
More climate data for Monte Alegre
See the full Monte Alegre climate overview or explore weather in Brazil.
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Where to go in September - average daytime high across popular destinations.
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