Direct Normal Irradiance (DNI) is the amount of solar radiation received per unit area by a surface that is always held perpendicular (or normal) to the rays that come in a straight line from the direction of the sun at its current position in the sky.
The source explains that this statistic is calculated for a period of 25 years. It adds that the underlying solar resource database is calculated by the Solargis model from atmospheric and satellite data with 15-minute and 30-minute time step.
The hours shown here are only those estimated to produce solar PV power.
Citation formats
Average solar radiation in Ivory Coast for January 1994-2018
An estimated daily direct normal irradiation (DNI) of **** thousand watt-hours per square meter (Wh/m2) was registered for the month of January in Ivory Coast, in the period between 1994 and 2018. Furthermore, the hours between ** AM and * PM were expected to maximize the amounts of solar radiation (more than *** Wh/m2) received per unit area, compared to other times of the day. The hours that were less likely to produce high amounts of irradiance were those between * AM to * AM and * AM to * PM, which are usually sunrise and sunset hours, respectively.
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International Finance Corporation. (October 9, 2019). Hourly average direct normal irradiation (DNI) in Ivory Coast for January between 1994 and 2018 (in 100 watt-hours per square meter) [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 28, 2026, from /statistics/1178510/average-solar-radiation-in-ivory-coast-for-january-1994-2018/
International Finance Corporation. "Hourly average direct normal irradiation (DNI) in Ivory Coast for January between 1994 and 2018 (in 100 watt-hours per square meter)." Chart. October 9, 2019. ÌÇÐÄÆƽâ°æ. Accessed July 28, 2026. /statistics/1178510/average-solar-radiation-in-ivory-coast-for-january-1994-2018/
International Finance Corporation. (2019). Hourly average direct normal irradiation (DNI) in Ivory Coast for January between 1994 and 2018 (in 100 watt-hours per square meter). ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 28, 2026. /statistics/1178510/average-solar-radiation-in-ivory-coast-for-january-1994-2018/
International Finance Corporation. "Hourly Average Direct Normal Irradiation (Dni) in Ivory Coast for January between 1994 and 2018 (in 100 Watt-hours per Square Meter)." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 9 Oct 2019, /statistics/1178510/average-solar-radiation-in-ivory-coast-for-january-1994-2018/
International Finance Corporation, Hourly average direct normal irradiation (DNI) in Ivory Coast for January between 1994 and 2018 (in 100 watt-hours per square meter) ÌÇÐÄÆƽâ°æ, /statistics/1178510/average-solar-radiation-in-ivory-coast-for-january-1994-2018/ (last visited July 28, 2026)
Hourly average direct normal irradiation (DNI) in Ivory Coast for January between 1994 and 2018 (in 100 watt-hours per square meter) [Graph], International Finance Corporation, October 9, 2019. [Online]. Available: /statistics/1178510/average-solar-radiation-in-ivory-coast-for-january-1994-2018/
