Located at latitude 36.8232 and longitude 10.1701, the city of Tunis in Tunisia is an exceptional site for solar photovoltaic (PV) power generation, given its substantial sunlight exposure throughout the year. The average energy production per day for each kilowatt of installed solar capacity varies by season: it stands at 7.32 kWh in summer, drops to 4.08 kWh in autumn, further decreases to 3.08 kWh in winter and rises again to 5.99 kWh during spring.
The high yield during summer months can be attributed to longer daylight hours and intense sunlight, while the lower output during winter results from shorter days and diminished sun intensity due to a lower sun path across the sky.
Despite these seasonal variations, Tunis remains a favorable location for solar power generation year-round due to its overall sunny climate.
However, certain weather conditions such as strong winds or heavy rainfall can potentially impact solar PV performance by causing physical damage or reducing sunlight exposure on panels; yet these are not typically prevalent weather patterns here.
To mitigate any potential adverse effects on energy output caused by such climatic factors - albeit rare - it would be prudent when installing solar panels here to ensure they are robustly secured against wind forces and designed with adequate drainage facilities for efficient rainwater runoff.
Furthermore, setting up fixed panel installations at an optimal tilt angle of 32 degrees facing south will maximize their exposure towards incoming sunlight throughout the year thereby optimizing energy production from each installed kW of capacity at this location.
Note: The Northern Temperate Zone extends from 35° latitude North up to 66.5° latitude.
So far, we have conducted calculations to evaluate the solar photovoltaic (PV) potential in 53 locations across Tunisia. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.
Link: Solar PV potential in Tunisia by location
Solar output per kW of installed solar PV by season in Tunis
Seasonal solar PV output for Latitude: 36.8232, Longitude: 10.1701 (Tunis, Tunisia), based on our analysis of 8760 hourly intervals of solar and meteorological data (one whole year) retrieved for that set of coordinates/location from NASA POWER (The Prediction of Worldwide Energy Resources) API:
 
Ideally tilt fixed solar panels 32° South in Tunis, Tunisia
To maximize your solar PV system's energy output in Tunis, Tunisia (Lat/Long 36.8232, 10.1701) throughout the year, you should tilt your panels at an angle of 32° South for fixed panel installations.
As the Earth revolves around the Sun each year, the maximum angle of elevation of the Sun varies by +/- 23.45 degrees from its equinox elevation angle for a particular latitude. Finding the exact optimal angle to maximise solar PV production throughout the year can be challenging, but with careful consideration of historical solar energy and meteorological data for a certain location, it can be done precisely.
We use our own calculation, which incorporates NASA solar and meteorological data for the exact Lat/Long coordinates, to determine the ideal tilt angle of a solar panel that will yield maximum annual solar output. We calculate the optimal angle for each day of the year, taking into account its contribution to the yearly total PV potential at that specific location.
Seasonally adjusted solar panel tilt angles for Tunis, Tunisia
If you can adjust the tilt angle of your solar PV panels, please refer to the seasonal tilt angles below for optimal solar energy production in Tunis, Tunisia. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 32° South tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 21° South in Summer | 41° South in Autumn | 52° South in Winter | 29° South in Spring |
Our recommendations take into account more than just latitude and Earth's position in its elliptical orbit around the Sun. We also incorporate historical solar and meteorological data from NASA's Prediction of Worldwide Energy Resources (POWER) API to assign a weight to each ideal angle for each day based on its historical contribution to overall solar PV potential during a specific season.
This approach allows us to provide much more accurate recommendations than relying solely on latitude, as it considers unique weather conditions in different locations sharing the same latitude worldwide.
Calculate solar panel row spacing in Tunis, Tunisia
We've added a feature to calculate minimum solar panel row spacing by location. Enter your panel size and orientation below to get the minimum spacing in Tunis, Tunisia.
Our calculation method
- Solar Position:
We determine the Sun's position on the Winter solstice using the location's latitude and solar declination. - Shadow Projection:
We calculate the shadow length cast by panels using trigonometry, considering panel tilt and the Sun's elevation angle. - Minimum Spacing:
We add the shadow length to the horizontal space occupied by tilted panels.
This approach ensures maximum space efficiency while avoiding shading during critical times, as the Winter solstice represents the worst-case scenario for shadow length.
Topography for solar PV around Tunis, Tunisia
The topography around Tunis, Tunisia is generally flat, with some rolling hills to the north and south. The area is well-suited for large scale solar PV installations due to its abundant sunshine and relatively low population density. Potential sites for large scale solar PV include open areas such as agricultural land or desert terrain. Areas near the airport or industrial parks are also suitable for large scale solar PV since they have plenty of space available without obstructing existing infrastructure.
Citation Guide
Article Details for Citation
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Saturday 11th of November 2023
Last Updated: Monday 21st of July 2025
Tell Us About Your Work
We love seeing how our research helps others! If you've cited this article in your work, we'd be delighted to hear about it. Drop us a line via our Contact Us page or on X, to share where you've used our information - we may feature a link to your work on our site. This helps create a network of valuable resources for others in the solar energy community and helps us understand how our research is contributing to the field. Plus, we occasionally highlight exceptional works that reference our research on our social media channels.
Feeling generous?
Share this with your friends!

Compare this location to others worldwide for solar PV potential
The solar PV analyses available on our website, including this one, are offered as a free service to the global community. Our aim is to provide education and aid informed decision-making regarding solar PV installations.
However, please note that these analyses are general guidance and may not meet specific project requirements. For in-depth, tailored forecasts and analysis crucial for feasibility studies or when pursuing maximum ROI from your solar projects, feel free to contact us; we offer comprehensive consulting services expressly for this purpose.
Helping you assess viability of solar PV for your site
Calculate Your Optimal Solar Panel Tilt Angle: A Comprehensive Guide
Enhance your solar panel's performance with our in-depth guide. Determine the best tilt angle using hard data, debunk common misunderstandings, and gain insight into how your specific location affects solar energy production.




