Climate averages 1991–2020
San Juan, Peru weather
in June.
A hot, very wet month: the coolest and the 5th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
June is a hot month in San Juan, Peru: daytime highs average 28.2°C and nights cool to about 22.4°C. By daytime temperature it is the coolest month of the year.
Expect about 218 mm of rain on roughly 25 days, which makes June a very wet month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 54 min on an average June day.
The nearest other city in this atlas is Iquitos (4 km away). In June its highs average 28.2°C, about as warm as San Juan, Peru, with 218 mm of rain.
Among the 24 cities listed in Peru, San Juan, Peru ranks joint 4th of 24 for the warmest June highs and joint 23rd of 24 for the driest June (rainfall, lowest first). The mean June high of those 24 cities is 22.8°C; San Juan, Peru is 5.4°C warmer than that mean.
From June to July, average highs rise by 0.1°C to 28.3°C, and monthly rainfall falls from 218 mm to 165 mm.
The annual picture
June in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
San Juan, Peru climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 30.0°C23.4°C | 23.4°C | 252 | 25.9 | 12.312 h |
| February | 30.0°C23.5°C | 23.5°C | 235 | 24.7 | 12.212 h |
| March | 29.9°C23.5°C | 23.5°C | 304 | 28.4 | 12.112 h |
| April | 29.4°C23.3°C | 23.3°C | 294 | 27.3 | 12.012 h |
| May | 28.8°C22.9°C | 22.9°C | 271 | 26.7 | 11.912 h |
| June, selected | 28.2°C22.4°C | 22.4°C | 218 | 25.0 | 11.912 h |
| July | 28.3°C22.1°C | 22.1°C | 165 | 23.3 | 11.912 h |
| August | 29.4°C22.5°C | 22.5°C | 154 | 21.8 | 12.012 h |
| September | 30.1°C23.1°C | 23.1°C | 179 | 23.5 | 12.112 h |
| October | 30.3°C23.5°C | 23.5°C | 201 | 25.8 | 12.212 h |
| November | 29.9°C23.5°C | 23.5°C | 235 | 25.8 | 12.312 h |
| December | 29.9°C23.4°C | 23.4°C | 263 | 27.2 | 12.312 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
June in nearby cities
- Iquitos in JunePeru · 4 kmHigh 28.2°C · Low 22.3°C · 218 mm rain
- Cruzeiro do Sul in JuneBrazil · 433 kmHigh 27.9°C · Low 21.4°C · 81 mm rain
- Pucallpa in JunePeru · 531 kmHigh 28.2°C · Low 22.1°C · 98 mm rain
- Cuenca in JuneEcuador · 642 kmHigh 16.5°C · Low 10.0°C · 78 mm rain
- Florencia in JuneColombia · 653 kmHigh 24.8°C · Low 17.9°C · 240 mm rain
- Loja in JuneEcuador · 658 kmHigh 20.1°C · Low 13.7°C · 49 mm rain
- Pitalito in JuneColombia · 698 kmHigh 21.1°C · Low 14.4°C · 321 mm rain
- Ipiales in JuneColombia · 705 kmHigh 14.8°C · Low 8.6°C · 160 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for San Juan) is explained once on the San Juan, Peru year overview and on the Sources, method and limits page.
Iquitos lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.