Climate Overview
The climate in Itapecuru Mirim is cold. The average annual temperature is -56°C and approximately 20mm of precipitation falls per year. November is the wettest month, receiving around 7mm of rainfall. Itapecuru Mirim sits near the equator, so seasonal temperature differences are minimal throughout the year. Light snow can occur between October and December.
Temperature
Temperatures in Itapecuru Mirim vary considerably across the year, with a 31°C difference between the coldest and warmest months. October is the warmest month, though highs remain moderate at -39°C with a mean of -41°C. June brings the harshest conditions, with lows dropping to -70°C and an average temperature of -67°C. Daily temperature variation is modest, with an average difference of 4°C between highs and lows. The sharpest temperature change occurs between June and July, with a 9°C shift in average temperatures.
Precipitation
Itapecuru Mirim is a quite dry location, receiving approximately 20mm of precipitation annually, which averages out to around 2mm per month. The wettest month is November, averaging 7mm of rainfall. December and October also tend to see above-average precipitation. The driest month is January, with just 0mm. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic. Light snowfall can occur between October and December, totalling around 20cm annually. November is the snowiest month with approximately 7cm.
Wind
Itapecuru Mirim is relatively calm, with an average annual wind speed of 8km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is October, averaging 11km/h, though still comfortable for most outdoor activities. The calmest conditions occur in January, with average winds dropping to 6km/h, making it an ideal period for wind-sensitive activities. Wind speeds vary significantly across the year, with a 5km/h difference between the calmest and windiest months. This level of variation is worth factoring into travel plans.
Seasons
16 days until Spring
It is currently winter in Itapecuru Mirim, which began on June 21, 2026. Itapecuru Mirim sits near the equator, so the traditional four-season cycle is less pronounced — temperatures remain relatively stable year-round. The warmest period peaks in October at around -39°C, while the coldest stretch bottoms out in June near -70°C. Spring is next, beginning on September 23, 2026 — 16 days from now.
Spring
Temperatures range from -47 to -39°C. Precipitation is minimal, with only around 13mm for the entire season. Winds are generally light, averaging 10km/h. Light layers work well as temperatures warm through the season — a great time to be outdoors.
Summer
Temperatures range from -62 to -50°C. Precipitation is minimal, with only around 6mm for the entire season. Winds are generally light, averaging 7km/h. Comfortable clothing with a light layer for cooler evenings is all you need.
Autumn
Temperatures range from -68 to -61°C. Precipitation is minimal, with only around 0mm for the entire season. Winds are generally light, averaging 9km/h. Layered clothing works best as temperatures gradually cool — enjoy the crisp air and changing scenery.
Winter
Temperatures range from -70 to -44°C. Precipitation is minimal, with only around 1mm for the entire season. Winds are generally light, averaging 8km/h. Heavy layering and insulated outerwear are essential — exposed skin should be minimised outdoors.
Monthly Climate Data
The table below shows monthly climate averages for Itapecuru Mirim based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.