Certified real estate broker · Asunción
This article highlights that solar orientation is a key, and often forgotten, factor when buying an apartment in Paraguay, as it directly influences thermal comfort and energy consumption for climatization due to the country's tropical climate. Below is a detailed breakdown of each orientation's behavior: East: Receives soft morning sun, ideal for bedrooms that stay cool at night. North: Offers constant and balanced light year-round (warm in winter and cool in summer with good architectural design). West: It is the hottest and most intense in the afternoon, requiring greater spending on cooling and insulation. South: It is the coolest option due to having a lot of shade, but it can be cold and humid in winter. The note concludes that there is no single correct orientation; rather, it depends on the buyer's lifestyle, and it urges [investors] to always check the compass rose on the blueprints before investing.
When we’re looking for our dream apartment in Paraguay, we tend to focus on square meters, the number of bedrooms, the amenities, and, of course, the price. However, there’s one crucial factor that’s often overlooked during the first visit but that defines quality of life and long-term maintenance costs: solar orientation.
In a country with a tropical climate and intense summers like ours, knowing where the sun shines and at what time is vital. It’s not just about lighting; it’s about thermal comfort and how much you’ll spend on air conditioning.
Below, we present the definitive guide to solar orientation in Paraguay so you can make the best investment decision.
Understanding the Sun in Paraguay
Our climate is characterized by long, hot summers and short winters that can still feature quite cold days. Therefore, striking a balance is key.
1. East-Facing: The Ideal Sunrise
For many, this is the favorite orientation.
• Characteristics: You get the gentle morning sun (from sunrise until around noon). In the afternoon, the unit is in the shade.
• Advantage: Rooms (especially bedrooms) warm up early when the outside temperature is still cool, and have the entire afternoon to cool down before nightfall. Ideal for starting the day with natural energy without suffering from extreme heat.
2. North-Facing: Constant and Balanced Light
This is one of the most sought-after orientations in bioclimatic architecture for our latitude.
• Behavior: It receives direct sunlight for much of the day. However, due to the Earth’s axial tilt, the sun is higher in the sky in summer and lower in winter.
• Advantage: In winter, the sun penetrates deeper, warming the rooms. In summer, good architectural design (with eaves or balconies) blocks the high sun, keeping the house well-lit but cool. It is a very balanced orientation throughout the year.
3. West (and Northwest) Orientation: The Heat Challenge
This is the most critical orientation in Paraguay and requires special attention.
• Behavior: It receives intense, direct, and hot afternoon sunlight, just when the ambient temperature is already high.
• Things to Consider: While it offers beautiful sunsets and is excellent for the few cold days of winter, in summer it can turn the apartment into an oven. If you choose this orientation, make sure the building has double-pane windows (DVH), high-quality blackout curtains, and a powerful air conditioning system—which will result in higher energy costs.
4. South-Facing: Shade and Coolness
This is the opposite orientation from north.
• Characteristics: It receives virtually no direct sunlight throughout the year.
• Advantage: It’s the coolest orientation. In the height of the Paraguayan summer, this can mean considerable savings on electricity, since the rooms stay naturally cooler.
• Disadvantage: Since it doesn’t receive sunlight, rooms may feel colder and more humid during the winter or on rainy days, and there is less natural light.
Summary of Impact on Your Investment
• East-Facing:
o Summer Comfort: High
o Winter Comfort: Medium
o Energy Consumption (AC): Low
• North-Facing:
o Summer Comfort: High (with eaves)
o Winter Comfort: High
o Energy Consumption (AC): Medium
• West-Facing:
o Summer Comfort: Low
o Winter Comfort: High
o Energy Consumption (AC): High
• South-Facing:
o Summer Comfort: Very High
o Winter Comfort: Low
o Energy Consumption (AC): Low (Summer) / High (Winter)
Conclusion: Which one should you choose?
There’s no single correct answer—it all depends on your lifestyle and priorities.
• If you’re a morning person who values cool bedrooms at night, the east is for you.
• If you’re looking for energy savings and coolness in the summer above all else, prioritize the South.
• If you want sunlight all year round and a warm atmosphere in the winter, go for the North.
• If you choose the West, be aware that you’ll need to invest in thermal insulation.
Final Tip: Before signing the contract for your next off-plan or brand-new apartment, ask to see the floor plan with the compass rose (the north indicator) and visualize how the Paraguayan sun will affect your daily routine. A poor choice here can’t be fixed with decor.
Do you need advice on finding the apartment with the ideal orientation for you?
Contact me.
In a country with a tropical climate and intense summers like ours, knowing where the sun shines and at what time is vital. It’s not just about lighting; it’s about thermal comfort and how much you’ll spend on air conditioning.
Below, we present the definitive guide to solar orientation in Paraguay so you can make the best investment decision.
Understanding the Sun in Paraguay
Our climate is characterized by long, hot summers and short winters that can still feature quite cold days. Therefore, striking a balance is key.
1. East-Facing: The Ideal Sunrise
For many, this is the favorite orientation.
• Characteristics: You get the gentle morning sun (from sunrise until around noon). In the afternoon, the unit is in the shade.
• Advantage: Rooms (especially bedrooms) warm up early when the outside temperature is still cool, and have the entire afternoon to cool down before nightfall. Ideal for starting the day with natural energy without suffering from extreme heat.
2. North-Facing: Constant and Balanced Light
This is one of the most sought-after orientations in bioclimatic architecture for our latitude.
• Behavior: It receives direct sunlight for much of the day. However, due to the Earth’s axial tilt, the sun is higher in the sky in summer and lower in winter.
• Advantage: In winter, the sun penetrates deeper, warming the rooms. In summer, good architectural design (with eaves or balconies) blocks the high sun, keeping the house well-lit but cool. It is a very balanced orientation throughout the year.
3. West (and Northwest) Orientation: The Heat Challenge
This is the most critical orientation in Paraguay and requires special attention.
• Behavior: It receives intense, direct, and hot afternoon sunlight, just when the ambient temperature is already high.
• Things to Consider: While it offers beautiful sunsets and is excellent for the few cold days of winter, in summer it can turn the apartment into an oven. If you choose this orientation, make sure the building has double-pane windows (DVH), high-quality blackout curtains, and a powerful air conditioning system—which will result in higher energy costs.
4. South-Facing: Shade and Coolness
This is the opposite orientation from north.
• Characteristics: It receives virtually no direct sunlight throughout the year.
• Advantage: It’s the coolest orientation. In the height of the Paraguayan summer, this can mean considerable savings on electricity, since the rooms stay naturally cooler.
• Disadvantage: Since it doesn’t receive sunlight, rooms may feel colder and more humid during the winter or on rainy days, and there is less natural light.
Summary of Impact on Your Investment
• East-Facing:
o Summer Comfort: High
o Winter Comfort: Medium
o Energy Consumption (AC): Low
• North-Facing:
o Summer Comfort: High (with eaves)
o Winter Comfort: High
o Energy Consumption (AC): Medium
• West-Facing:
o Summer Comfort: Low
o Winter Comfort: High
o Energy Consumption (AC): High
• South-Facing:
o Summer Comfort: Very High
o Winter Comfort: Low
o Energy Consumption (AC): Low (Summer) / High (Winter)
Conclusion: Which one should you choose?
There’s no single correct answer—it all depends on your lifestyle and priorities.
• If you’re a morning person who values cool bedrooms at night, the east is for you.
• If you’re looking for energy savings and coolness in the summer above all else, prioritize the South.
• If you want sunlight all year round and a warm atmosphere in the winter, go for the North.
• If you choose the West, be aware that you’ll need to invest in thermal insulation.
Final Tip: Before signing the contract for your next off-plan or brand-new apartment, ask to see the floor plan with the compass rose (the north indicator) and visualize how the Paraguayan sun will affect your daily routine. A poor choice here can’t be fixed with decor.
Do you need advice on finding the apartment with the ideal orientation for you?
Contact me.
