Global horizontal irradiation, Kaloum
- Mean
- 5.24 kWh/m²/day
- Annual total
- 1,915 kWh/m²/yr
- Highest
- March (6.27)
- Lowest
- August (4.02)
- Year-to-year variability
- ± 0.067 (1.3 %)
- Values
- 360 months
- Monthly value
- 12-month moving average
- 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 30 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 (5.24 kWh/m²/day).
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2020 | 5.30 | 5.99 | 6.52 | 5.72 | 5.40 | 5.07 | 3.71 | 3.70 | 4.80 | 5.52 | 5.57 | 5.42 | 5.23 |
| 2019 | 5.55 | 6.15 | 6.42 | 6.31 | 6.07 | 4.79 | 4.05 | 3.84 | 4.84 | 5.20 | 5.39 | 5.76 | 5.36 |
| 2018 | 5.50 | 5.88 | 6.36 | 6.42 | 6.05 | 4.45 | 4.00 | 4.14 | 4.71 | 5.32 | 5.20 | 5.72 | 5.31 |
| 2017 | 5.82 | 6.00 | 6.35 | 6.33 | 5.47 | 4.51 | 4.19 | 4.24 | 4.93 | 5.45 | 4.97 | 5.31 | 5.30 |
| 2016 | 4.85 | 5.75 | 6.69 | 6.67 | 6.12 | 4.72 | 3.71 | 3.93 | 4.54 | 5.56 | 5.12 | 5.07 | 5.23 |
| 2015 | 5.32 | 6.16 | 6.28 | 5.99 | 5.76 | 4.67 | 4.19 | 4.22 | 4.75 | 5.26 | 5.33 | 4.74 | 5.22 |
| 2014 | 5.65 | 6.22 | 6.56 | 6.62 | 5.57 | 4.83 | 4.62 | 3.94 | 4.66 | 5.08 | 4.92 | 5.04 | 5.31 |
| 2013 | 5.55 | 6.25 | 6.63 | 6.68 | 5.46 | 4.82 | 4.28 | 3.69 | 4.56 | 5.21 | 5.33 | 5.35 | 5.32 |
| 2012 | 5.75 | 5.41 | 6.08 | 6.26 | 5.53 | 4.72 | 3.87 | 4.05 | 4.85 | 5.11 | 5.12 | 5.25 | 5.17 |
| 2011 | 5.26 | 6.39 | 6.40 | 6.20 | 5.45 | 4.60 | 4.22 | 4.21 | 4.82 | 5.17 | 5.20 | 5.31 | 5.27 |
| 2010 | 5.62 | 5.91 | 5.74 | 5.80 | 5.16 | 4.94 | 4.17 | 4.07 | 4.77 | 5.03 | 5.53 | 4.89 | 5.14 |
| 2009 | 5.33 | 6.08 | 6.48 | 6.27 | 5.89 | 4.97 | 4.33 | 3.77 | 4.41 | 5.27 | 4.98 | 5.23 | 5.25 |
| 2008 | 5.71 | 5.80 | 6.16 | 5.93 | 5.57 | 4.72 | 4.48 | 4.00 | 4.80 | 5.05 | 5.45 | 5.23 | 5.24 |
| 2007 | 5.37 | 6.00 | 6.16 | 6.18 | 5.50 | 4.76 | 4.03 | 3.92 | 4.75 | 5.35 | 5.25 | 5.46 | 5.23 |
| 2006 | 5.48 | 5.93 | 6.17 | 6.18 | 5.66 | 4.58 | 4.54 | 3.90 | 5.04 | 5.21 | 5.56 | 5.46 | 5.31 |
| 2005 | 5.16 | 5.55 | 6.35 | 5.98 | 5.40 | 4.21 | 4.51 | 3.83 | 5.19 | 5.27 | 5.22 | 5.27 | 5.16 |
| 2004 | 5.31 | 5.52 | 5.81 | 6.11 | 5.17 | 4.66 | 4.33 | 4.41 | 5.39 | 5.41 | 5.49 | 5.08 | 5.23 |
| 2003 | 4.95 | 6.12 | 6.30 | 6.34 | 5.64 | 4.75 | 3.73 | 3.78 | 4.72 | 5.11 | 5.06 | 5.00 | 5.12 |
| 2002 | 5.07 | 5.88 | 6.25 | 6.28 | 6.08 | 4.79 | 4.51 | 3.90 | 4.82 | 5.13 | 5.33 | 5.11 | 5.26 |
| 2001 | 5.51 | 5.89 | 6.42 | 6.09 | 5.73 | 4.91 | 4.57 | 3.74 | 4.88 | 5.23 | 4.52 | 4.87 | 5.20 |
| 2000 | 5.24 | 6.08 | 6.33 | 6.00 | 5.79 | 4.65 | 4.73 | 4.22 | 4.52 | 4.95 | 5.01 | 5.24 | 5.23 |
| 1999 | 5.47 | 6.12 | 6.50 | 6.11 | 5.75 | 5.07 | 4.45 | 3.58 | 4.78 | 5.03 | 4.66 | 5.14 | 5.22 |
| 1998 | 5.34 | 6.09 | 5.85 | 6.23 | 5.33 | 5.00 | 4.55 | 4.20 | 4.82 | 5.32 | 5.34 | 4.93 | 5.25 |
| 1997 | 5.38 | 5.84 | 6.00 | 6.50 | 5.46 | 4.57 | 4.24 | 4.46 | 4.91 | 5.28 | 5.09 | 5.11 | 5.24 |
| 1996 | 5.61 | 6.00 | 5.92 | 6.30 | 5.44 | 4.97 | 4.62 | 4.80 | 4.82 | 5.27 | 5.39 | 4.93 | 5.34 |
| 1995 | 5.45 | 5.44 | 6.25 | 6.05 | 5.78 | 5.15 | 4.40 | 4.34 | 5.10 | 5.37 | 5.30 | 4.84 | 5.29 |
| 1994 | 5.38 | 5.81 | 6.27 | 6.19 | 5.87 | 5.10 | 4.57 | 4.21 | 4.77 | 5.00 | 5.21 | 5.07 | 5.29 |
| 1993 | 5.06 | 5.72 | 6.12 | 6.01 | 5.56 | 4.95 | 4.50 | 4.58 | 5.27 | 5.11 | 5.11 | 5.30 | 5.27 |
| 1992 | 4.99 | 5.13 | 5.94 | 6.35 | 5.03 | 4.65 | 4.33 | 3.95 | 4.99 | 5.25 | 4.98 | 5.11 | 5.06 |
| 1991 | 5.28 | 5.85 | 6.07 | 6.24 | 5.83 | 5.07 | 4.47 | 4.17 | 5.21 | 4.93 | 5.07 | 4.96 | 5.26 |
| Median | 5.37 | 5.92 | 6.27 | 6.21 | 5.57 | 4.77 | 4.33 | 4.02 | 4.82 | 5.22 | 5.21 | 5.13 | |
| P10 | 5.05 | 5.51 | 5.91 | 5.98 | 5.32 | 4.57 | 3.85 | 3.74 | 4.56 | 5.03 | 4.97 | 4.89 | |
| P90 | 5.65 | 6.17 | 6.52 | 6.52 | 6.05 | 5.07 | 4.58 | 4.41 | 5.19 | 5.41 | 5.50 | 5.46 | |
| Min. | 4.85 | 5.13 | 5.74 | 5.72 | 5.03 | 4.21 | 3.71 | 3.58 | 4.41 | 4.93 | 4.52 | 4.74 | |
| Max. | 5.82 | 6.39 | 6.69 | 6.68 | 6.12 | 5.15 | 4.73 | 4.80 | 5.39 | 5.56 | 5.57 | 5.76 |
CSV file
360 rows, 12 KB. Columns: period, value, unit, confidence level, status.
annee,mois,valeur,unite,niveau_confiance,statut 1991,1,5.28,kWh/m²/jour,B,brut 1991,2,5.8546,kWh/m²/jour,B,brut 1991,3,6.0715,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_ghi_power_1991_2020?format=csv"
Python
Read the published file directly with pandas.
import pandas as pd url = "https://kumascience.com/data/guinee/conakry_kaloum/ghi_nasa_power_mensuel_68.csv" df = pd.read_csv(url) df.head()
Same variable, other sources
5 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 | 5.025.61 |
|---|---|---|---|---|---|
| NASA POWER this record | 1991-2020 | monthly | 5.24 | reference | |
| ERA5-Land | 2001-2020 | monthly | 5.02 | −4.2 % | |
| PVGIS-SARAH-3 | 2021-2023 | monthly | 5.61 | +6.9 % | |
| ERA5-Land | 2021-2025 | daily | 5.04 | −4.0 % | |
| NASA POWER | 2021-2025 | daily | 5.26 | +0.4 % |
Notes
- Method
- Satellite model
- Unit
- kWh/m²/day
- Time step
- Monthly
- Period
- 1991-01-01 - 2020-12-31
- 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). Global horizontal irradiation, Kaloum (Guinea), 1991-2020. NASA POWER series, Guinea national energy data reference. DOI 10.5281/zenodo.21051755. https://kumascience.com/en/donnees/gin_conakry_ghi_power_1991_2020
@misc{kuma_gin_conakry_ghi_power_1991_2020,
author = {{Kuma Science}},
title = {Global horizontal irradiation, Kaloum (Guinea), 1991-2020},
year = {2026},
howpublished = {NASA POWER series},
doi = {10.5281/zenodo.21051755},
url = {https://kumascience.com/en/donnees/gin_conakry_ghi_power_1991_2020},
note = {License CC-BY 4.0}
}TY - DATA AU - Kuma Science TI - Global horizontal irradiation, Kaloum (Guinea), 1991-2020 PY - 2026 PB - Kuma Science DO - 10.5281/zenodo.21051755 UR - https://kumascience.com/en/donnees/gin_conakry_ghi_power_1991_2020 N1 - NASA POWER ER -
Also cite the primary source, whose licence applies to the published values.
Astuce pratique · Pour citer cette fiche dans un rapport BE ou un livrable client, sélectionnez le bloc ci-dessus puis copiez-collez. Le slug de la série (le code présent dans l'URL) garantit la reproductibilité : la même URL pointera vers la même série, même après mises à jour des données amont (l'historique versionné côté Data Core est préservé).
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