Iguazu weather in May
In May, Iguazu sees average daytime highs of 24°C and overnight lows near 15°C, with 162 mm of rain across 9.1 wet days and about 10.8 hours of daylight. It is the 10th-warmest and 3rd-wettest month of the year here.
Highs ease over the month, from about 25°C in the first days to 22°C by the end. The sky is clear or mostly clear about 39% of the time in May, and the air most often feels humid.
Daylight stretches from about 11 h 06 min at the start of May to 10 h 30 min by month's end. Set against the rest of the year, May is Iguazu's 7th-clearest and 7th-windiest month. For the whole year in context, see Iguazu's year-round climate.
- Daytime high
- 24°
- 10th warmest
- Overnight low
- 15°
- 4th coldest
- Rainfall
- 162 mm
- 9.1 wet days
- Daylight
- 10 h 48 min
- 7:12 AM – 5:57 PM
- Cloud cover
- 54%
- 7th clearest
- Wind
- 9 km/h
- 7th windiest
- Solar energy
- 3.26 kWh/m²
- Travel score
- 7.1
- out of 10
Iguazu is human settlement.
- Founded
- 1902
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in May
Highs ease over the month, from about 25°C in the first days to 22°C by the end.
A typical May day in Iguazu reaches about 24°C in the afternoon and slips back to 15°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 19°C and 29°C. Set against its neighbours, May runs about 4°C cooler than April and about 1°C warmer than June.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 26 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 22 | 22 | 22 | 22 | 22 |
| Avg low (°C) | 17 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 26 | 17 |
| 2 | 25 | 16 |
| 3 | 25 | 16 |
| 4 | 25 | 16 |
| 5 | 25 | 16 |
| 6 | 25 | 16 |
| 7 | 25 | 16 |
| 8 | 25 | 16 |
| 9 | 24 | 16 |
| 10 | 24 | 16 |
| 11 | 24 | 15 |
| 12 | 24 | 15 |
| 13 | 24 | 15 |
| 14 | 24 | 15 |
| 15 | 24 | 15 |
| 16 | 24 | 15 |
| 17 | 23 | 15 |
| 18 | 23 | 15 |
| 19 | 23 | 15 |
| 20 | 23 | 15 |
| 21 | 23 | 15 |
| 22 | 23 | 14 |
| 23 | 23 | 14 |
| 24 | 23 | 14 |
| 25 | 23 | 14 |
| 26 | 23 | 14 |
| 27 | 22 | 14 |
| 28 | 22 | 14 |
| 29 | 22 | 14 |
| 30 | 22 | 14 |
| 31 | 22 | 14 |
How May really feels in Iguazu
Once humidity and wind are folded in, May averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.
May sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Iguazu weather by month
How May compares with the rest of the year at a glance. May is the 10th-warmest and 3rd-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 31° / 22° | 157 | 15.3 | 13.4 | 3.9 |
| Feb | 31° / 22° | 151 | 14 | 12.9 | 4.1 |
| Mar | 30° / 21° | 141 | 12.5 | 12.2 | 4.8 |
| Apr | 28° / 18° | 138 | 9.4 | 11.4 | 6.3 |
| May | 24° / 15° | 162 | 9.1 | 10.8 | 7.1 |
| Jun | 22° / 14° | 137 | 9.2 | 10.4 | 6.9 |
| Jul | 22° / 13° | 118 | 8.5 | 10.6 | 7.2 |
| Aug | 25° / 14° | 94 | 7 | 11.1 | 7.7 |
| Sep | 27° / 16° | 155 | 9.9 | 11.8 | 6.7 |
| Oct | 28° / 19° | 197 | 13.2 | 12.6 | 5.5 |
| Nov | 30° / 20° | 158 | 11.7 | 13.3 | 5.0 |
| Dec | 31° / 21° | 184 | 14.8 | 13.6 | 4.2 |
Cloud cover in May
The sky is clear or mostly clear about 39% of the time in May.
Beyond those clear spells, partly cloudy skies cover about 13% of May, with mostly cloudy or overcast conditions the remaining 48%.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 56 | 56 | 55 | 56 | 56 | 55 | 55 | 55 | 55 | 54 | 54 | 54 | 53 | 53 | 52 | 52 | 51 | 51 | 51 | 51 | 50 | 49 | 49 | 49 | 49 | 49 | 48 | 48 | 48 | 49 | 50 |
| Cloudier (%) | 44 | 44 | 45 | 44 | 44 | 45 | 45 | 45 | 45 | 46 | 46 | 46 | 47 | 47 | 48 | 48 | 49 | 49 | 49 | 49 | 50 | 51 | 51 | 51 | 51 | 51 | 52 | 52 | 52 | 51 | 50 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 56 | 44 |
| 2 | 56 | 44 |
| 3 | 55 | 45 |
| 4 | 56 | 44 |
| 5 | 56 | 44 |
| 6 | 55 | 45 |
| 7 | 55 | 45 |
| 8 | 55 | 45 |
| 9 | 55 | 45 |
| 10 | 54 | 46 |
| 11 | 54 | 46 |
| 12 | 54 | 46 |
| 13 | 53 | 47 |
| 14 | 53 | 47 |
| 15 | 52 | 48 |
| 16 | 52 | 48 |
| 17 | 51 | 49 |
| 18 | 51 | 49 |
| 19 | 51 | 49 |
| 20 | 51 | 49 |
| 21 | 50 | 50 |
| 22 | 49 | 51 |
| 23 | 49 | 51 |
| 24 | 49 | 51 |
| 25 | 49 | 51 |
| 26 | 49 | 51 |
| 27 | 48 | 52 |
| 28 | 48 | 52 |
| 29 | 48 | 52 |
| 30 | 49 | 51 |
| 31 | 50 | 50 |
Chance of precipitation in May
Iguazu gets around 162 mm of rain over 9.1 wet days in May. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 29% and peaks near 32% on the wettest days.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 28 | 27 | 27 | 27 | 26 | 26 | 26 | 26 | 27 | 27 | 27 | 27 | 27 | 27 | 28 | 28 | 29 | 29 | 30 | 30 | 31 | 31 | 31 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 31 |
| Rain chance (%) | |
|---|---|
| 1 | 28 |
| 2 | 27 |
| 3 | 27 |
| 4 | 27 |
| 5 | 26 |
| 6 | 26 |
| 7 | 26 |
| 8 | 26 |
| 9 | 27 |
| 10 | 27 |
| 11 | 27 |
| 12 | 27 |
| 13 | 27 |
| 14 | 27 |
| 15 | 28 |
| 16 | 28 |
| 17 | 29 |
| 18 | 29 |
| 19 | 30 |
| 20 | 30 |
| 21 | 31 |
| 22 | 31 |
| 23 | 31 |
| 24 | 32 |
| 25 | 32 |
| 26 | 32 |
| 27 | 32 |
| 28 | 32 |
| 29 | 32 |
| 30 | 32 |
| 31 | 31 |
Humidity in May
Most of May feels humid — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, May lands in the humid band about 32% of days. Sticky, muggy-or-worse air turns up on roughly 21% of them.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 14 | 15 | 16 | 17 | 17 | 18 | 18 | 19 | 19 | 20 | 20 | 21 | 21 | 21 | 22 | 22 | 23 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 31 | 31 | 32 | 33 | 34 | 34 | 35 |
| Comfortable (%) | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 24 | 25 | 25 | 25 | 25 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 25 | 25 | 25 | 25 | 24 | 24 |
| Humid (%) | 33 | 33 | 33 | 33 | 33 | 33 | 32 | 32 | 32 | 32 | 32 | 33 | 33 | 33 | 34 | 34 | 34 | 34 | 34 | 34 | 33 | 32 | 32 | 31 | 31 | 30 | 29 | 28 | 28 | 27 | 27 |
| Muggy (%) | 33 | 32 | 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | 23 | 21 | 20 | 19 | 18 | 17 | 16 | 15 | 15 | 14 | 14 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 13 | 13 | 13 |
| Oppressive (%) | 5 | 5 | 4 | 4 | 3 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | |
|---|---|---|---|---|---|
| 1 | 14 | 14 | 33 | 33 | 5 |
| 2 | 15 | 15 | 33 | 32 | 5 |
| 3 | 16 | 16 | 33 | 31 | 4 |
| 4 | 17 | 17 | 33 | 30 | 4 |
| 5 | 17 | 18 | 33 | 29 | 3 |
| 6 | 18 | 19 | 33 | 28 | 2 |
| 7 | 18 | 20 | 32 | 27 | 2 |
| 8 | 19 | 21 | 32 | 26 | 2 |
| 9 | 19 | 22 | 32 | 25 | 1 |
| 10 | 20 | 23 | 32 | 24 | 1 |
| 11 | 20 | 24 | 32 | 23 | 1 |
| 12 | 21 | 24 | 33 | 21 | 1 |
| 13 | 21 | 25 | 33 | 20 | 1 |
| 14 | 21 | 25 | 33 | 19 | 1 |
| 15 | 22 | 25 | 34 | 18 | 1 |
| 16 | 22 | 25 | 34 | 17 | 1 |
| 17 | 23 | 26 | 34 | 16 | 1 |
| 18 | 23 | 26 | 34 | 15 | 1 |
| 19 | 24 | 26 | 34 | 15 | 1 |
| 20 | 25 | 26 | 34 | 14 | 1 |
| 21 | 26 | 26 | 33 | 14 | 2 |
| 22 | 27 | 26 | 32 | 13 | 2 |
| 23 | 28 | 26 | 32 | 13 | 2 |
| 24 | 29 | 26 | 31 | 13 | 1 |
| 25 | 31 | 26 | 31 | 12 | 1 |
| 26 | 31 | 25 | 30 | 12 | 1 |
| 27 | 32 | 25 | 29 | 12 | 1 |
| 28 | 33 | 25 | 28 | 12 | 1 |
| 29 | 34 | 25 | 28 | 13 | 1 |
| 30 | 34 | 24 | 27 | 13 | 1 |
| 31 | 35 | 24 | 27 | 13 | 1 |
Wind in May
Winds average 9 km/h in May.
Across May, daily wind ranges from about 9 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 |
| Feels | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 9 | calm |
| 2 | 9 | calm |
| 3 | 9 | calm |
| 4 | 9 | calm |
| 5 | 9 | calm |
| 6 | 9 | calm |
| 7 | 9 | calm |
| 8 | 9 | calm |
| 9 | 9 | calm |
| 10 | 9 | calm |
| 11 | 9 | calm |
| 12 | 9 | calm |
| 13 | 9 | calm |
| 14 | 9 | calm |
| 15 | 9 | calm |
| 16 | 9 | calm |
| 17 | 9 | calm |
| 18 | 9 | calm |
| 19 | 9 | calm |
| 20 | 9 | calm |
| 21 | 9 | calm |
| 22 | 9 | calm |
| 23 | 9 | calm |
| 24 | 9 | calm |
| 25 | 9 | calm |
| 26 | 9 | calm |
| 27 | 9 | calm |
| 28 | 9 | calm |
| 29 | 9 | calm |
| 30 | 9 | calm |
| 31 | 9 | calm |
Sunrise & sunset in May
Daylight runs from about 11 h 06 min at the start of May to 10 h 30 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 36 minutes over May. Sunrise moves from 7:04 AM to 7:20 AM, and sunset from 6:07 PM to 5:52 PM.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 11.1 | 11.0 | 11.0 | 11.0 | 11.0 | 10.9 | 10.9 | 10.9 | 10.9 | 10.9 | 10.8 | 10.8 | 10.8 | 10.8 | 10.8 | 10.8 | 10.7 | 10.7 | 10.7 | 10.7 | 10.7 | 10.7 | 10.6 | 10.6 | 10.6 | 10.6 | 10.6 | 10.6 | 10.6 | 10.5 | 10.5 |
| Sunrise (AM) | 7:04 | 7:04 | 7:05 | 7:06 | 7:06 | 7:07 | 7:07 | 7:08 | 7:08 | 7:09 | 7:09 | 7:10 | 7:10 | 7:11 | 7:11 | 7:12 | 7:12 | 7:13 | 7:14 | 7:14 | 7:15 | 7:15 | 7:16 | 7:16 | 7:17 | 7:17 | 7:18 | 7:18 | 7:19 | 7:19 | 7:20 |
| Sunset (PM) | 6:07 | 6:06 | 6:05 | 6:05 | 6:04 | 6:03 | 6:03 | 6:02 | 6:01 | 6:01 | 6:00 | 5:59 | 5:59 | 5:58 | 5:58 | 5:57 | 5:57 | 5:56 | 5:56 | 5:55 | 5:55 | 5:54 | 5:54 | 5:54 | 5:53 | 5:53 | 5:53 | 5:52 | 5:52 | 5:52 | 5:52 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 11.1 | 7:04 | 6:07 |
| 2 | 11.0 | 7:04 | 6:06 |
| 3 | 11.0 | 7:05 | 6:05 |
| 4 | 11.0 | 7:06 | 6:05 |
| 5 | 11.0 | 7:06 | 6:04 |
| 6 | 10.9 | 7:07 | 6:03 |
| 7 | 10.9 | 7:07 | 6:03 |
| 8 | 10.9 | 7:08 | 6:02 |
| 9 | 10.9 | 7:08 | 6:01 |
| 10 | 10.9 | 7:09 | 6:01 |
| 11 | 10.8 | 7:09 | 6:00 |
| 12 | 10.8 | 7:10 | 5:59 |
| 13 | 10.8 | 7:10 | 5:59 |
| 14 | 10.8 | 7:11 | 5:58 |
| 15 | 10.8 | 7:11 | 5:58 |
| 16 | 10.8 | 7:12 | 5:57 |
| 17 | 10.7 | 7:12 | 5:57 |
| 18 | 10.7 | 7:13 | 5:56 |
| 19 | 10.7 | 7:14 | 5:56 |
| 20 | 10.7 | 7:14 | 5:55 |
| 21 | 10.7 | 7:15 | 5:55 |
| 22 | 10.7 | 7:15 | 5:54 |
| 23 | 10.6 | 7:16 | 5:54 |
| 24 | 10.6 | 7:16 | 5:54 |
| 25 | 10.6 | 7:17 | 5:53 |
| 26 | 10.6 | 7:17 | 5:53 |
| 27 | 10.6 | 7:18 | 5:53 |
| 28 | 10.6 | 7:18 | 5:52 |
| 29 | 10.6 | 7:19 | 5:52 |
| 30 | 10.5 | 7:19 | 5:52 |
| 31 | 10.5 | 7:20 | 5:52 |
Solar energy in May
Average shortwave solar energy reaching the ground each day in May, about 3.26 kWh/m².
For context, solar energy here swings from a low near 2.83 kWh/m² to a high of 6.38 kWh/m² in December across the year — May's 3.26 kWh/m² sits near the bottom.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 3.8 | 3.7 | 3.7 | 3.7 | 3.6 | 3.6 | 3.6 | 3.5 | 3.5 | 3.5 | 3.4 | 3.4 | 3.4 | 3.3 | 3.3 | 3.3 | 3.2 | 3.2 | 3.2 | 3.1 | 3.1 | 3.1 | 3.0 | 3.0 | 3.0 | 3.0 | 2.9 | 2.9 | 2.9 | 2.9 | 2.9 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 3.8 | Moderate |
| 2 | 3.7 | Moderate |
| 3 | 3.7 | Moderate |
| 4 | 3.7 | Moderate |
| 5 | 3.6 | Moderate |
| 6 | 3.6 | Moderate |
| 7 | 3.6 | Moderate |
| 8 | 3.5 | Moderate |
| 9 | 3.5 | Moderate |
| 10 | 3.5 | Moderate |
| 11 | 3.4 | Moderate |
| 12 | 3.4 | Moderate |
| 13 | 3.4 | Moderate |
| 14 | 3.3 | Moderate |
| 15 | 3.3 | Moderate |
| 16 | 3.3 | Moderate |
| 17 | 3.2 | Moderate |
| 18 | 3.2 | Moderate |
| 19 | 3.2 | Moderate |
| 20 | 3.1 | Moderate |
| 21 | 3.1 | Moderate |
| 22 | 3.1 | Moderate |
| 23 | 3.0 | Moderate |
| 24 | 3.0 | Moderate |
| 25 | 3.0 | Moderate |
| 26 | 3.0 | Moderate |
| 27 | 2.9 | Moderate |
| 28 | 2.9 | Moderate |
| 29 | 2.9 | Moderate |
| 30 | 2.9 | Moderate |
| 31 | 2.9 | Moderate |
Is May a good time to visit Iguazu?
Our two travel scores rate May for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
May is one of the better times to visit Iguazu for general sightseeing.
What to pack for Iguazu in May
From May's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In May, Iguazu sees daytime highs around 24°C and nights near 15°C. Worth packing: light clothes and rain gear. About 9 days see rain.
UV index in Iguazu in May
Clear-sky midday UV in May peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Iguazu peaks around January 19 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 12 at about 5 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 15 | 14 | 11 | 9 | 6 | 5 | 5 | 6 | 6 | 10 | 12 | 13 |
| Level | Extreme | Extreme | Extreme | Very high | High | High | Moderate | High | High | Very high | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 15 | Extreme |
| Feb | 14 | Extreme |
| Mar | 11 | Extreme |
| Apr | 9 | Very high |
| May | 6 | High |
| Jun | 5 | High |
| Jul | 5 | Moderate |
| Aug | 6 | High |
| Sep | 6 | High |
| Oct | 10 | Very high |
| Nov | 12 | Extreme |
| Dec | 13 | Extreme |
Air quality in Iguazu in May
Average fine-particle pollution (PM2.5) through the year — so you can see where May falls, not just the annual average.
Air quality in Iguazu is worst in September — around 23 µg/m³ PM2.5 (moderate), about 2.9× the cleanest month (March, 8 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 8 | 8 | 8 | 9 | 10 | 10 | 11 | 14 | 23 | 14 | 10 | 8 |
| Level | Good | Good | Good | Good | Good | Good | Good | Moderate | Moderate | Moderate | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 8 | Good |
| Feb | 8 | Good |
| Mar | 8 | Good |
| Apr | 9 | Good |
| May | 10 | Good |
| Jun | 10 | Good |
| Jul | 11 | Good |
| Aug | 14 | Moderate |
| Sep | 23 | Moderate |
| Oct | 14 | Moderate |
| Nov | 10 | Good |
| Dec | 8 | Good |
Where is Iguazu?
Iguazu sits at 25.6°S, 54.6°W, 177 m above sea level, in Argentina. The nearest listed city is Presidente Franco, 5.0 km away.
Topography around Iguazu
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Iguazu.
Within 3 km, the terrain around Iguazu has only modest variations in elevation — a maximum elevation change of 139 m around an average of 175 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 198 m; within 80 km, significant variations in elevation — a maximum elevation change of 568 m.
The land around Iguazu is covered by trees (50%) and artificial surfaces (30%) within 3 km, trees (52%) and cropland (22%) within 16 km, and trees (46%) and cropland (38%) within 80 km.
Argentina travel facts
- Travel advisory
- Level 1
- Exercise Normal Precautions
- Power plugs
- Type C / I
- 220 V · 50 Hz
- Prices
- ≈ 46% of US
- price level, 2025
- GDP per capita
- $14,898
- 2025
- Happiness
- 6.4 / 10
- World Happiness, 2025
- Homicide rate
- 4.5
- per 100k, 2023
- Road deaths
- 14.1
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- High
- EF EPI 575
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Iguazu (-25.5991°, -54.5735°, elevation 177 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).