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San Ignacio Weather by Month
Average temperatures, rainfall and humidity for San Ignacio, Peru, month by month, built from OpenWeather’s historical records. Use it to see what a typical San Ignacio month looks like before you travel — then check the live San Ignacio forecast for the days ahead.
Warmest month
September
23°C average high
Coolest month
August
11°C average low
Wettest month
January
191 mm of rain
Driest month
September
53 mm of rain
Average temperature and rainfall in San Ignacio by month
Averages of the daily highs and lows recorded in each month, with total rainfall, mean humidity and mean wind speed.
| Month | Avg high | Avg low | Record low / high | Rainfall | Humidity | Wind |
|---|---|---|---|---|---|---|
| January | 22°C | 12°C | 8°C / 32°C | 191 mm | 82% | 5 km/h |
| February | 23°C | 13°C | 8°C / 33°C | 169 mm | 83% | 5 km/h |
| March | 23°C | 12°C | 7°C / 33°C | 184 mm | 84% | 5 km/h |
| April | 23°C | 12°C | 5°C / 33°C | 124 mm | 83% | 5 km/h |
| May | 23°C | 12°C | 5°C / 32°C | 94 mm | 80% | 6 km/h |
| June | 22°C | 11°C | 4°C / 32°C | 65 mm | 76% | 6 km/h |
| July | 21°C | 11°C | 3°C / 33°C | 62 mm | 76% | 7 km/h |
| August | 23°C | 11°C | 4°C / 32°C | 55 mm | 74% | 7 km/h |
| September | 23°C | 11°C | 4°C / 33°C | 53 mm | 73% | 6 km/h |
| October | 23°C | 12°C | 6°C / 34°C | 106 mm | 78% | 5 km/h |
| November | 23°C | 12°C | 4°C / 34°C | 155 mm | 79% | 4 km/h |
| December | 22°C | 12°C | 7°C / 33°C | 186 mm | 81% | 5 km/h |
Best time to visit San Ignacio
The most comfortable time to visit San Ignacio is generally June and August to September, balancing mild daytime temperatures against the driest stretch of the year. Temperatures stay fairly even all year and rain concentrates around January, totalling about 1,442 mm a year.
Travellers who prefer heat should aim for September, when highs average 23°C. January is the month to avoid if rain would spoil your plans — it averages 191 mm, roughly 4× the rainfall of the driest month (September).
Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the San Ignacio forecast for what is happening now.