Direct normal irradiation, Beyla
- Mean
- 4.44 kWh/m²/day
- Annual total
- 1,621 kWh/m²/yr
- Highest
- December (5.60)
- Lowest
- March (3.34)
- Year-to-year variability
- ± 0.181 (4.1 %)
- Values
- 203 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 16 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 (4.44 kWh/m²/day).
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2020 | 5.75 | 5.63 | 3.36 | 3.83 | 4.36 | 4.68 | 3.53 | 3.43 | 4.17 | 5.61 | 6.36 | 6.00 | 4.73 |
| 2019 | 6.89 | 5.25 | 3.89 | 3.24 | 4.45 | 4.34 | 3.63 | 3.60 | 3.62 | 4.77 | 6.10 | 7.13 | 4.74 |
| 2018 | 5.22 | 4.40 | 4.85 | 3.38 | 4.31 | 4.03 | 3.58 | 3.29 | 4.32 | 5.27 | 4.74 | 6.75 | 4.51 |
| 2017 | 6.53 | 4.25 | 4.27 | 4.19 | 4.32 | 4.02 | 4.11 | 3.62 | 4.44 | 5.53 | 4.75 | 5.01 | 4.59 |
| 2016 | 4.65 | 4.32 | 3.99 | 4.09 | 4.50 | 4.43 | 3.36 | 3.80 | 3.95 | 5.01 | 5.13 | 5.58 | 4.40 |
| 2015 | 5.00 | 4.96 | 3.05 | 3.50 | 4.34 | 3.96 | 4.37 | 3.33 | 4.62 | 5.75 | 5.91 | 5.09 | 4.49 |
| 2014 | 5.54 | 4.69 | 3.14 | 4.32 | 4.75 | 4.45 | 4.03 | 3.42 | 4.02 | 5.46 | 4.73 | 5.61 | 4.51 |
| 2013 | 6.22 | 5.50 | 3.71 | 4.42 | 4.45 | 4.05 | 4.24 | 3.22 | 4.64 | 4.90 | 5.61 | 6.00 | 4.75 |
| 2012 | 5.97 | 3.54 | 2.62 | 3.83 | 3.99 | 4.03 | 3.44 | 3.91 | 4.00 | 4.90 | 5.07 | 5.84 | 4.26 |
| 2011 | 4.83 | 4.97 | 4.25 | 3.88 | 4.49 | 3.99 | 3.48 | 3.48 | 4.35 | 4.88 | 4.91 | 5.81 | 4.44 |
| 2010 | 5.83 | 5.11 | 2.95 | 3.07 | 4.36 | 4.13 | 3.55 | 3.57 | 4.16 | 4.54 | 5.01 | 5.09 | 4.28 |
| 2009 | 5.27 | 3.76 | 2.74 | 3.21 | 4.49 | 4.42 | 3.53 | 3.31 | 4.30 | 4.74 | 5.32 | 5.60 | 4.22 |
| 2008 | 6.35 | 4.21 | 3.34 | 3.43 | 4.27 | 4.37 | 3.97 | 3.80 | 4.05 | 4.92 | 5.75 | 5.32 | 4.48 |
| 2007 | 4.45 | 4.48 | 3.10 | 3.51 | 4.38 | 4.37 | 3.67 | 3.28 | 3.81 | 4.65 | 5.14 | 5.93 | 4.23 |
| 2006 | 5.44 | 4.02 | 3.17 | 3.73 | 4.17 | 3.97 | 4.03 | 3.30 | 3.65 | 5.10 | 6.35 | 5.45 | 4.36 |
| 2005 | 4.67 | 3.61 | 3.67 | 4.23 | 4.31 | 3.25 | 4.42 | 3.62 | 4.70 | 4.99 | 4.46 | 5.05 | 4.25 |
| 2004 | — | 3.67 | 2.92 | 3.18 | 3.99 | 4.07 | 3.87 | 4.16 | 4.66 | 5.28 | 5.48 | 4.52 | — |
| Median | 5.49 | 4.40 | 3.34 | 3.73 | 4.36 | 4.07 | 3.67 | 3.48 | 4.17 | 4.99 | 5.14 | 5.60 | |
| P10 | 4.66 | 3.65 | 2.85 | 3.20 | 4.10 | 3.97 | 3.46 | 3.29 | 3.75 | 4.70 | 4.74 | 5.04 | |
| P90 | 6.44 | 5.35 | 4.26 | 4.27 | 4.50 | 4.44 | 4.29 | 3.85 | 4.64 | 5.56 | 6.20 | 6.30 | |
| Min. | 4.45 | 3.54 | 2.62 | 3.07 | 3.99 | 3.25 | 3.36 | 3.22 | 3.62 | 4.54 | 4.46 | 4.52 | |
| Max. | 6.89 | 5.63 | 4.85 | 4.42 | 4.75 | 4.68 | 4.42 | 4.16 | 4.70 | 5.75 | 6.36 | 7.13 |
CSV file
203 rows, 7 KB. Columns: period, value, unit, confidence level, status.
annee,mois,valeur,unite,niveau_confiance,statut 2004,2,3.6673,kWh/m²/jour,B,brut 2004,3,2.9227,kWh/m²/jour,B,brut 2004,4,3.1756,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_beyla_dni_cams_2004_2020?format=csv"
Python
Read the published file directly with pandas.
import pandas as pd url = "https://kumascience.com/data/guinee/beyla/dni_cams_radiation_mensuel.csv" df = pd.read_csv(url) df.head()
Same variable, other sources
4 series published for this variable in Beyla. The gap compares period means, which do not always cover the same years.
| Source | Period | Step | Mean (kWh/m²/day) | Gap | 2.974.70 |
|---|---|---|---|---|---|
| NASA POWER | 2001-2020 | monthly | 2.97 | −33.2 % | |
| CAMS Radiation this record | 2004-2020 | monthly | 4.44 | reference | |
| CAMS Radiation | 2021-2023 | monthly | 4.70 | +6.0 % | |
| NASA POWER | 2021-2025 | daily | 3.11 | −30.0 % |
Notes
- Source
- CAMS Radiation Service, solar radiation time-series (Copernicus Atmosphere Monitoring Service)
- Method
- Satellite model
- Unit
- kWh/m²/day
- Time step
- Monthly
- Period
- 2004-02-01 - 2020-12-31
- Kuma qualification
- Acceptable qualification, cross-check series
- Source licence
- Licence à vérifier auprès de la source amont avant réutilisation.
- Kuma licence
- CC-BY 4.0, DOI 10.5281/zenodo.21051755
Cite this series
Kuma Science (2026). Direct normal irradiation, Beyla (Guinea), 2004-2020. CAMS Radiation series, Guinea national energy data reference. DOI 10.5281/zenodo.21051755. https://kumascience.com/en/donnees/gin_beyla_dni_cams_2004_2020
@misc{kuma_gin_beyla_dni_cams_2004_2020,
author = {{Kuma Science}},
title = {Direct normal irradiation, Beyla (Guinea), 2004-2020},
year = {2026},
howpublished = {CAMS Radiation series},
doi = {10.5281/zenodo.21051755},
url = {https://kumascience.com/en/donnees/gin_beyla_dni_cams_2004_2020},
note = {License CC-BY 4.0}
}TY - DATA AU - Kuma Science TI - Direct normal irradiation, Beyla (Guinea), 2004-2020 PY - 2026 PB - Kuma Science DO - 10.5281/zenodo.21051755 UR - https://kumascience.com/en/donnees/gin_beyla_dni_cams_2004_2020 N1 - CAMS Radiation 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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