Distribution
Direct normal irradiation, Kaloum
- Mean
- 3.44 kWh/m²/day
- Annual total
- 1,255 kWh/m²/yr
- Highest
- January (5.00)
- Lowest
- August (1.29)
- Year-to-year variability
- ± 0.091 (2.6 %)
- Values
- 1,826 days
Monthly means of the daily values.
- Period mean
- Month above its normal
- Month below
- 12-month moving average
Drag across the chart to zoom, double-click to reset.
For each month, over 5 years: median, low and high years (P10 to P90) and extreme values.
- Median
- Low and high years (P10 to P90)
- Extreme values (min. to max.)
Mean of each complete year, as a gap to the period mean (3.44 kWh/m²/day).
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025 | 4.73 | 4.15 | 4.92 | 4.40 | 2.29 | 2.72 | 1.31 | 1.29 | 1.98 | 3.96 | 3.97 | 4.70 | 3.37 |
| 2024 | 4.98 | 4.62 | 4.57 | 4.53 | 2.70 | 2.06 | 1.03 | 1.18 | 1.79 | 3.13 | 5.81 | 5.44 | 3.49 |
| 2023 | 5.95 | 4.16 | 5.03 | 4.16 | 2.50 | 2.01 | 2.27 | 1.74 | 2.51 | 2.83 | 3.99 | 5.71 | 3.57 |
| 2022 | 5.00 | 4.54 | 3.80 | 4.35 | 3.18 | 2.63 | 1.62 | 1.29 | 1.89 | 3.34 | 4.36 | 4.76 | 3.39 |
| 2021 | 5.22 | 3.99 | 3.84 | 3.84 | 2.87 | 2.34 | 1.59 | 1.49 | 2.90 | 3.43 | 4.68 | 4.16 | 3.36 |
| Median | 5.00 | 4.16 | 4.57 | 4.35 | 2.70 | 2.34 | 1.59 | 1.29 | 1.98 | 3.34 | 4.36 | 4.76 | |
| P10 | 4.83 | 4.06 | 3.81 | 3.97 | 2.37 | 2.03 | 1.14 | 1.22 | 1.83 | 2.95 | 3.98 | 4.37 | |
| P90 | 5.66 | 4.58 | 4.98 | 4.48 | 3.05 | 2.68 | 2.01 | 1.64 | 2.75 | 3.75 | 5.36 | 5.60 | |
| Min. | 4.73 | 3.99 | 3.80 | 3.84 | 2.29 | 2.01 | 1.03 | 1.18 | 1.79 | 2.83 | 3.97 | 4.16 | |
| Max. | 5.95 | 4.62 | 5.03 | 4.53 | 3.18 | 2.72 | 2.27 | 1.74 | 2.90 | 3.96 | 5.81 | 5.71 |
CSV file
1,826 rows, 69 KB. Columns: period, value, unit, confidence level, status.
date,valeur,unite,niveau_confiance,statut 2021-01-01,5.957,kWh/m²/jour,B,brut 2021-01-02,7.249,kWh/m²/jour,B,brut 2021-01-03,4.6176,kWh/m²/jour,B,brutDownload the CSV
API
The same series, versioned, with a free key.
curl -H "Authorization: Bearer kuma_votre_cle" \ "https://api.kumascience.com/v1/series/gin_conakry_dni_nasa_power_2021_2025?format=csv"
Python
Read the published file directly with pandas.
import pandas as pd url = "https://kumascience.com/data/guinee/conakry_kaloum/dni_nasa_power_journalier.csv" df = pd.read_csv(url) df.head()
Same variable, other sources
4 series published for this variable in Kaloum. The gap compares period means, which do not always cover the same years.
| Source | Period | Step | Mean (kWh/m²/day) | Gap | 3.203.70 |
|---|---|---|---|---|---|
| NASA POWER | 2001-2020 | monthly | 3.20 | −6.9 % | |
| CAMS Radiation | 2004-2020 | monthly | 3.70 | +7.6 % | |
| CAMS Radiation | 2021-2023 | monthly | 3.65 | +6.2 % | |
| NASA POWER this record | 2021-2025 | daily | 3.44 | reference |
Notes
- Method
- Satellite model
- Unit
- kWh/m²/day
- Time step
- Daily, charts and table as monthly means
- Period
- 2021-01-01 - 2025-12-31
- Kuma qualification
- Acceptable qualification, cross-check series
- Source licence
- NASA Open Data Policy, domaine public, citation recommandée
- Kuma licence
- CC-BY 4.0, DOI 10.5281/zenodo.21051755
Cite this series
Kuma Science (2026). Direct normal irradiation, Kaloum (Guinea), 2021-2025. NASA POWER series, Guinea national energy data reference. DOI 10.5281/zenodo.21051755. https://kumascience.com/en/donnees/gin_conakry_dni_nasa_power_2021_2025
@misc{kuma_gin_conakry_dni_nasa_power_2021_2025,
author = {{Kuma Science}},
title = {Direct normal irradiation, Kaloum (Guinea), 2021-2025},
year = {2026},
howpublished = {NASA POWER series},
doi = {10.5281/zenodo.21051755},
url = {https://kumascience.com/en/donnees/gin_conakry_dni_nasa_power_2021_2025},
note = {License CC-BY 4.0}
}TY - DATA AU - Kuma Science TI - Direct normal irradiation, Kaloum (Guinea), 2021-2025 PY - 2026 PB - Kuma Science DO - 10.5281/zenodo.21051755 UR - https://kumascience.com/en/donnees/gin_conakry_dni_nasa_power_2021_2025 N1 - NASA POWER ER -
Also cite the primary source, whose licence applies to the published values.
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