Asunción climate
Asunción (Paraguay) has a humid subtropical climate (Köppen Cfa). The average temperature over the year is 23 °C73 °F, and about 1,474 mm58 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Asunción climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin |
|---|---|---|---|---|
| Jan | 3493 | 2373 | 2883 | 1265.0 |
| Feb | 3392 | 2272 | 2882 | 1395.5 |
| Mar | 3290 | 2169 | 2680 | 1365.3 |
| Apr | 2984 | 1864 | 2374 | 1495.9 |
| May | 2475 | 1356 | 1965 | 1435.6 |
| Jun | 2272 | 1253 | 1762 | 742.9 |
| Jul | 2271 | 1051 | 1661 | 632.5 |
| Aug | 2576 | 1253 | 1865 | 381.5 |
| Sep | 2882 | 1457 | 2170 | 732.9 |
| Oct | 3187 | 1865 | 2476 | 1636.4 |
| Nov | 3188 | 1967 | 2578 | 1907.5 |
| Dec | 3290 | 2271 | 2781 | 1797.1 |
| Year | 3493 | 1051 | 2373 | 1,47458 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 68% | 60% | 6.8 | 13:33 |
| Feb | 68% | 58% | 6.2 | 12:59 |
| Mar | 69% | 53% | 5.4 | 12:18 |
| Apr | 75% | 50% | 4.4 | 11:32 |
| May | 81% | 53% | 3.4 | 10:54 |
| Jun | 83% | 58% | 2.8 | 10:34 |
| Jul | 79% | 52% | 3.2 | 10:42 |
| Aug | 73% | 47% | 3.9 | 11:14 |
| Sep | 68% | 52% | 4.6 | 11:59 |
| Oct | 70% | 57% | 5.5 | 12:44 |
| Nov | 71% | 51% | 6.4 | 13:23 |
| Dec | 71% | 60% | 6.8 | 13:42 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Asunción is like
The warmest month is January, with an average high of 34 °C93 °F and a low of 23 °C73 °F. The coldest is July, when highs average 22 °C71 °F and lows 10 °C51 °F. There is a clear seasonal cycle, with 12.1 °C21.8 °F between the average temperature of the warmest and the coolest month.
It is wet, with about 1,474 mm58 in of precipitation per year. The wettest three-month stretch is October–December, which brings 36% of the annual total. The wettest month is November (190 mm7.5 in), the driest is August (38 mm1.5 in).
Relative humidity ranges from 68% in September to 83% in June. The clearest skies (lowest average cloud amount, 47%) are typical of August. Average wind speed near the ground ranges from 8 km/h (5 mph) in March to 11 km/h (7 mph) in August. Daylight lasts from about 10.6 hours in June to 13.7 hours in December.
Best time to visit Asunción
Based on these averages, the most comfortable months for sightseeing and outdoor activities are June–September. Average highs then reach 22 °C71 °F to 28 °C82 °F. Precipitation is 38 mm1.5 in to 74 mm2.9 in per month.
The most challenging month is December, which is hot, with average highs of 32 °C90 °F and very wet (179 mm7.1 in).
Comfort score: months are ranked by how close they come to an ideal. That means an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for Asunción
- Summer (December–February) — highs 3290 to 34 °C93 °F, lows 2271 to 23 °C73 °F, about 148 mm5.8 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water and an umbrella or light rain jacket.
- Autumn (March–May) — highs 2475 to 32 °C90 °F, lows 1356 to 21 °C69 °F, about 143 mm5.6 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses, an extra layer for the cooler mornings and evenings and an umbrella or light rain jacket.
- Winter (June–August) — highs 2271 to 25 °C76 °F, lows 1051 to 12 °C53 °F, about 58 mm2.3 in of precipitation a month. Pack light layers — T-shirts plus a light sweater or jacket and an extra layer for the cooler mornings and evenings.
- Spring (September–November) — highs 2882 to 31 °C88 °F, lows 1457 to 19 °C67 °F, about 142 mm5.6 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses, an extra layer for the cooler mornings and evenings and an umbrella or light rain jacket.
How Asunción compares
Some places in other countries have a very similar pattern of temperature and rainfall. The closest matches are Formosa (Argentina, Cfa), Ituzaingó (Argentina, Cfa) and Corrientes (Argentina, Cfa).
The same NASA POWER grid cell also contains San Lorenzo (pop. 227,876), Capiatá (pop. 198,553), Lambaré (pop. 126,377) and Fernando de la Mora (pop. 120,167). Their long-term averages in this dataset are essentially the same as for Asunción, so they do not have separate pages.
Nearby places
- Climate in Formosa 113 km · 23 °C73 °F · 1,400 mm55 in
- Climate in Corrientes 270 km · 22 °C71 °F · 1,384 mm55 in
- Climate in Ituzaingó 273 km · 22 °C71 °F · 1,586 mm62 in
- Climate in Posadas 290 km · 21 °C71 °F · 1,771 mm70 in
- Climate in Ciudad del Este 302 km · 23 °C74 °F · 1,611 mm63 in
- Climate in Toledo 399 km · 21 °C70 °F · 1,530 mm60 in
- Climate in Cascavel 424 km · 19 °C66 °F · 1,585 mm62 in
- Climate in Dourados 447 km · 23 °C74 °F · 1,299 mm51 in
Frequently asked questions
What is the warmest month in Asunción?
January is the warmest month in Asunción. Its average high is 34 °C (93 °F) and its average low is 23 °C (73 °F).
What is the coldest month in Asunción?
July is the coldest month. Its average high is 22 °C (71 °F) and its average low is 10 °C (51 °F).
When does it rain the most in Asunción?
November is the wettest month with about 190 mm (7.5 in) of precipitation. August is the driest with about 38 mm (1.5 in).
What is the best time to visit Asunción?
Judging by long-term averages, the most comfortable months are June–September.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station. So they can differ from airport records. The gaps are largest on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.