San Ignacio Temperature by Month

The average annual maximum temperature in San Ignacio, Misiones, Argentina is 28°C (82°F), with daytime highs ranging from 22°C (72°F) in July to 33°C (91°F) in January. This page covers monthly averages, day-night differences, and how San Ignacio compares to cities worldwide.

In San Ignacio, seasonal changes bring about a moderate variation in temperatures. Nighttime lows range from 21°C (70°F) in January to 11°C (52°F) in July.

The chart below illustrates the average maximum day and minimum night temperatures in San Ignacio by month:

The coolest part of the day is typically between 4 AM and 6 AM, while 3 PM is usually the warmest, when solar heating is at its peak. January, the city's warmest month, averages 255 hours of sunshine.

The chart below shows the average temperature throughout the year:

San Ignacio's average annual maximum temperature is 28°C (82°F). To put that in context, here's how it compares to a few well-known destinations:

Lisbon, Portugal averages 21°C (70°F) annually, warm summers, mild winters, and rain mainly in the cooler months.

Zermatt, Switzerland averages just 4°C (39°F) annually due to its altitude, with very cold winters and cool summers even at its warmest.

Boston, USA averages 16°C (61°F) annually, with four distinct seasons and cold winters that rival northern Europe.

Tokyo, Japan averages 21°C (70°F) a year, with hot summers, cool winters, and a well-defined cherry blossom spring.

Temperature alone doesn't tell the whole story, humidity plays a big role in how warm or cold it actually feels. High humidity in summer makes the heat feel more intense, particularly once temperatures climb above 25°C. In winter, the same humidity can make cold air feel sharper than the thermometer suggests.

In San Ignacio, July is the coolest month, with average highs of 22°C (72°F) and humidity around 76%, considered high. In January, the warmest month, temperatures average 33°C (91°F) with 69% humidity, conditions that feel high. For a full picture, see our humidity page.

Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.

The readings come from a range of sources, land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.

Whether a city sits on the coast or deep inland makes a significant difference to its climate. Coastal areas tend to have more stable temperatures year-round, large bodies of water absorb heat slowly in summer and release it gradually in winter, keeping extremes in check. Cities far from the sea don't benefit from that buffer, which is why continental climates tend to have hotter summers and colder winters than their coastal counterparts at the same latitude.

For more on San Ignacio's weather, including monthly rainfall, sunshine hours, and humidity, visit our San Ignacio climate page.