Climate in Paraguay: what to expect month by month as an expat
Paraguay is often imagined as a land of eternal summer, tropical heat, and constant sunshine. The reality is more nuanced—and that’s good news. Paraguay has a true seasonal rhythm, with a mild and pleasant winter, a beautiful spring, an intense summer, and a transitional autumn. Understanding this month-by-month climate is essential for planning your arrival, adapting your wardrobe, choosing your accommodation, and organizing your daily life.
This guide provides an accurate overview of the climate in Paraguay as an expatriate truly experiences it: temperatures, humidity, rainfall, weather events, and practical advice for each season.
Overview: A humid subtropical climate
Climate Classification
Paraguay is located between the Tropic of Capricorn and the 27th parallel south. Its climate is classified as humid subtropical (Cfa according to the Köppen classification). This means hot and humid summers, mild and dry winters, and rainfall distributed throughout the year with a peak in summer.
The country is divided into two major climatic regions:
- The Eastern Region (where Asunción, Encarnación, Ciudad del Este are located): classic humid subtropical climate, abundant vegetation, regular rainfall
- The Chaco (Western Region): semi-arid to dry subtropical climate, more extreme temperatures, less rainfall
For an expatriate settling in Asunción, it is the climate of the Eastern Region that concerns you daily.
Inverted Seasons
As Paraguay is in the Southern Hemisphere, the seasons are inverted compared to Europe:
- Summer: December to February
- Autumn: March to May
- Winter: June to August
- Spring: September to November
This means that when it’s grey and cold in Europe, it's hot and sunny in Paraguay—and conversely, the mild Paraguayan winter falls during the European summer. For expatriates who travel regularly to Europe, this rhythm needs to be integrated into travel planning.
The climate month by month in Asunción
January: The peak of summer
January is the hottest month of the year. Temperatures range between 24°C at night and 35-38°C during the day, with frequent peaks above 40°C. Humidity is high (70-80%), which makes the heat feel even heavier. Tropical storms are frequent in the late afternoon—spectacular but brief. This is the period of Paraguayan school holidays, and many Asuncenos flee the city for San Bernardino or Encarnación.
Expat Tip: Air conditioning is essential. If you are looking for accommodation, check that the AC units are in good condition and powerful enough. The electricity budget increases significantly in summer due to AC—expect 50 to 80 USD/month compared to 20 to 40 USD the rest of the year. The cost remains negligible thanks to cheap electricity in Paraguay, as detailed in our cost of living guide.
February: The heat persists
February is a carbon copy of January—hot, humid, stormy. Temperatures remain between 24 and 36°C. Rainfall is abundant (the wettest month of the year with an average of 150 to 180 mm). Streets can be temporarily flooded during the most intense downpours, especially in the lower parts of the city. This is the end of the long holidays, and the city gradually returns to its rhythm.
Expat Tip: If you arrive in Paraguay in February, mentally prepare for the heat. Acclimatization takes 2 to 3 weeks. Drink plenty of water and tereré (the national iced yerba mate drink—you'll quickly adopt it).
March: The beginning of the transition
March marks the beginning of the Paraguayan autumn. Temperatures start to drop slightly (22 to 33°C) and humidity gradually decreases. Days remain warm but evenings become more pleasant. This is the month when school resumes, and life returns to normal in Asunción.
Expat Tip: March is an excellent month to arrive in Paraguay. The extreme heat of summer subsides, temporary rental prices drop after the summer season, and you have the most pleasant months of the year ahead of you to settle in.
April: The ideal month
April is considered by many expats to be the best month of the year in Asunción. Temperatures are perfect (18 to 28°C), humidity is moderate, rainfall decreases, and the sun shines generously. Evenings are mild and pleasant—ideal for outdoor terraces and asados with friends. This is Paraguay at its best.
Expat Tip: Take advantage of this month to explore the city, visit neighborhoods, meet the expat community, and get your bearings. The climate is so pleasant that you will understand why expats fall in love with Paraguay.
May: Coolness sets in
May marks the entry into the cool season. Temperatures drop to 15 to 25°C, with mornings that can be chilly (12-14°C). Paraguayans bring out their sweaters and jackets—and so will you. Rain is rare and the sky is generally clear. It's a very pleasant period for outdoor activities and excursions.
Expat Tip: Bring some light warm clothes (sweaters, windbreaker jacket). Homes in Paraguay are not equipped with central heating—it's not necessary, but a small space heater can be useful for chilly mornings from May to August.
June: Mild winter begins
June is the first month of the Paraguayan winter. Temperatures fluctuate between 12 and 22°C. Nights can drop to 8-10°C during cold spells (surazos) coming from southern Argentina. These cold episodes usually last 2 to 4 days before the mild weather returns. Sunshine remains good and rainfall is low.
Expat Tip: The Paraguayan winter resembles a mild autumn in France—nothing dramatic. But the lack of central heating in homes and poor insulation of buildings can make chilly nights uncomfortable if you are not prepared. A good blanket and a small space heater are sufficient.
July: The coolest month
July is statistically the coldest month of the year in Asunción, with temperatures between 10 and 20°C. Mornings are cool (sometimes 5-7°C during the most intense surazos) and days remain mild under the sun. The weather is dry and bright—many expats consider it the best time for outdoor activities, hiking, and excursions into the Paraguayan countryside.
Expat Tip: Don't let anyone tell you it's cold in Paraguay. For a European accustomed to winters of 0-5°C, the Paraguayan winter is a blessing. You can have lunch on a terrace in July—try doing that in Paris or Brussels in the middle of winter.
August: The end of winter
August is the transitional month between winter and spring. Temperatures gradually rise (12 to 24°C) and the first spring warmth is felt towards the end of the month. It is also the driest month of the year—the air is dry and pleasant, the sky is intensely blue. Jacarandas begin to bloom, covering the streets of Asunción in purple.
Expat Tip: August is an excellent month to arrive in Paraguay if you dread the heat. You enjoy the end of the mild winter, settle in calmly, and gradually acclimatize as temperatures rise.
September: Spring explodes
September marks the beginning of Paraguayan spring. Temperatures climb to 16 to 28°C, trees bloom (pink and yellow lapachos, jacarandas), and nature regains its colors. It is a beautiful month, with generous sunshine and ideal temperatures. The first spring rains return at the end of the month.
Expat Tip: This is when Asunción is at its most beautiful. Parks, streets, and gardens are in bloom. Take the opportunity to explore the city and its surroundings—the Jesuit missions, the waterfalls of the eastern region, artisan villages like Areguá.
October: The intensity builds
October sees temperatures climb seriously (19 to 31°C). Humidity gradually returns, and days lengthen. Tropical storms reappear, usually in the late afternoon. It's still a very pleasant month, but you can feel summer approaching.
Expat Tip: If you haven't started your air conditioning yet, now is the time to check it's working. Temperatures in November and December will soar.
November: Heat sets in
November is the month when summer truly sets in. Temperatures reach 22 to 34°C with increasing humidity. Storms become frequent and sometimes violent—spectacular lightning, brief torrential rains, then the sun returns. This is the end of spring and the prelude to the summer furnace.
Expat Tip: This is the ideal time to invest in a good fan or check your air conditioning. If you have a pool in your condo, you'll start to appreciate it fully.
December: The great summer begins
December marks the official start of summer. Temperatures fluctuate between 24 and 36°C, with peaks regularly exceeding 38°C. Humidity is high, and storms are almost daily in the late afternoon. It's also the month of year-end festivities—Christmas in Paraguay is celebrated in shorts and flip-flops, around an outdoor asado. A disorienting but unforgettable experience for a European accustomed to snowy Christmases.
Expat Tip: Many expats take advantage of the December-February period to travel to cooler regions (Argentine Patagonia, southern Brazil, Uruguay) and escape the heat peaks. This is the advantage of having a base in Paraguay: regional mobility is easy and affordable.
Asunción climate summary table
| Month | Min Temp (°C) | Max Temp (°C) | Rain (mm) | Atmosphere |
|---|---|---|---|---|
| January | 24 | 35-38 | 150 | Very hot, humid, stormy |
| February | 24 | 35-37 | 160 | Very hot, wetter |
| March | 22 | 32-34 | 120 | Hot, beginning of transition |
| April | 18 | 27-29 | 100 | Ideal, mild, sunny |
| May | 15 | 24-26 | 80 | Cool, pleasant, dry |
| June | 12 | 21-23 | 60 | Mild winter, some cool nights |
| July | 10 | 20-22 | 40 | Coolest, dry and bright |
| August | 12 | 23-25 | 40 | Late winter, dry, jacarandas |
| September | 16 | 27-29 | 80 | Spring, blooming, ideal |
| October | 19 | 30-32 | 120 | Hot, storms return |
| November | 22 | 33-35 | 140 | Hot, humid, stormy |
| December | 24 | 35-37 | 150 | Summer, tropical Christmas |
How the climate impacts an expat's life
Accommodation
Air conditioning is essential from November to March and highly recommended the rest of the year. Apartments in good neighborhoods—like those described in our guide to Asunción neighborhoods—are systematically equipped with AC units. Check their number, power, and condition before signing a lease. In winter, a small space heater is sufficient—no need for central heating.
Wardrobe
Plan your wardrobe accordingly:
- Summer (Nov-Mar): lightweight clothes, cotton, linen, open shoes, hat, SPF 50 sunscreen
- Mid-season (Apr-May, Sep-Oct): light layers, a light jacket for evenings
- Winter (Jun-Aug): sweaters, warm jacket, long pants—no need for European-style winter coat, but a light down jacket is useful during surazos
Health
Summer heat can cause dehydration and heatstroke if you are not careful. Drink plenty of water (3 to 4 liters per day in summer), avoid intense physical activities between 11 AM and 4 PM, and protect yourself from the sun. Mosquitoes are more active in summer—use repellent and check that your windows have screens. For everything related to health in Paraguay, consult our healthcare system guide.
Choosing your arrival date
If you have a choice, the best months to arrive in Paraguay are March to May (autumn) or August to September (late winter/early spring). You avoid the extreme summer heat and benefit from ideal climatic conditions for your settlement procedures. The tax residency process takes 3 months—by arriving in March, your cédula will be ready by June, just in time to enjoy the most pleasant Paraguayan winter you've ever experienced.
The climate in the rest of the country
Encarnación (south)
Slightly cooler than Asunción, Encarnación benefits from the influence of the Paraná River. Summers are hot but slightly breezier, and winters a little colder (occasional frosts). The city is particularly pleasant in spring and autumn.
Ciudad del Este (east)
Climate very similar to Asunción, with slightly more abundant rainfall due to the proximity of Iguazu Falls and the Atlantic Forest. Humidity is more pronounced than in Asunción, especially in summer.
The Chaco (west)
The Chaco has a more extreme climate: very hot in summer (45°C is not uncommon), drier, and with greater thermal amplitudes. Winter can be cold at night (5-8°C) but hot during the day (25°C). It is a semi-arid climate, suitable for livestock farming but harsh for daily life. Few expats settle in the Chaco, except for agricultural projects—our agricultural investment guide covers this region.
Conclusion: A pleasant climate 9 months out of 12
The climate in Paraguay is one of the country's major assets for French-speaking expats. Nine months out of twelve, conditions are ideal or very pleasant—from April to November, you live under a blue sky with temperatures between 15 and 30°C. The three summer months (December-February) are hot and humid, but perfectly manageable with air conditioning and an adapted lifestyle.
For a Frenchman, Belgian, or Swiss accustomed to grey, cold, and endless winters, Paraguay offers a radical change: sun all year round, a mild winter where you can still have lunch on a terrace, and a tropical summer that invites you to pools and regional getaways. The climate is not a drawback of expatriation in Paraguay—it's one of its most beautiful arguments.
Want to trade the European gloom for Paraguayan sunshine? Contact our team to organize your relocation to Paraguay and start your new life under the sun.