Direct normal irradiation, Kaloum
- Mean
- 3.20 kWh/m²/day
- Annual total
- 1,168 kWh/m²/yr
- Highest
- February (4.49)
- Lowest
- August (1.40)
- Year-to-year variability
- ± 0.168 (5.3 %)
- Values
- 240 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 20 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 (3.20 kWh/m²/day).
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2020 | 3.88 | 4.45 | 4.85 | 3.12 | 2.87 | 2.20 | 1.11 | 1.49 | 2.05 | 3.64 | 4.96 | 5.16 | 3.32 |
| 2019 | 4.83 | 4.84 | 4.34 | 4.17 | 3.80 | 2.13 | 1.50 | 1.41 | 2.03 | 3.05 | 4.40 | 5.99 | 3.54 |
| 2018 | 4.37 | 4.35 | 4.64 | 4.02 | 3.73 | 1.54 | 1.49 | 1.69 | 1.90 | 3.16 | 3.81 | 5.90 | 3.38 |
| 2017 | 5.71 | 4.50 | 4.50 | 3.62 | 2.70 | 1.80 | 1.63 | 1.64 | 2.32 | 3.37 | 3.11 | 4.47 | 3.28 |
| 2016 | 3.66 | 3.46 | 5.30 | 4.78 | 3.96 | 2.05 | 1.15 | 1.27 | 1.78 | 3.55 | 3.61 | 3.93 | 3.21 |
| 2015 | 3.77 | 5.24 | 3.91 | 2.97 | 2.99 | 1.55 | 1.73 | 1.58 | 2.18 | 2.92 | 4.07 | 3.07 | 3.00 |
| 2014 | 5.02 | 4.98 | 4.52 | 4.53 | 3.00 | 2.00 | 1.88 | 1.30 | 2.09 | 2.73 | 3.23 | 4.12 | 3.28 |
| 2013 | 4.77 | 5.11 | 5.32 | 4.51 | 2.99 | 2.09 | 1.59 | 1.13 | 1.86 | 2.86 | 4.18 | 4.98 | 3.45 |
| 2012 | 5.07 | 3.34 | 3.06 | 3.65 | 2.59 | 1.96 | 1.48 | 1.46 | 2.51 | 3.00 | 3.96 | 4.73 | 3.07 |
| 2011 | 3.97 | 5.72 | 4.60 | 3.48 | 2.77 | 1.66 | 1.47 | 1.61 | 2.41 | 2.71 | 3.86 | 4.47 | 3.23 |
| 2010 | 4.99 | 4.48 | 3.21 | 2.69 | 2.19 | 1.89 | 1.54 | 1.55 | 2.16 | 2.95 | 4.62 | 4.01 | 3.02 |
| 2009 | 4.27 | 4.89 | 4.67 | 3.56 | 3.48 | 2.20 | 1.76 | 1.18 | 1.93 | 3.24 | 3.80 | 4.45 | 3.29 |
| 2008 | 5.11 | 3.80 | 3.75 | 2.83 | 2.84 | 1.94 | 1.88 | 1.38 | 2.16 | 2.64 | 4.16 | 4.42 | 3.07 |
| 2007 | 3.72 | 4.78 | 3.64 | 3.46 | 2.73 | 1.90 | 1.42 | 1.39 | 2.17 | 3.33 | 3.85 | 5.12 | 3.13 |
| 2006 | 4.65 | 5.05 | 4.02 | 3.73 | 3.25 | 1.77 | 1.99 | 1.39 | 2.52 | 3.09 | 4.84 | 4.98 | 3.44 |
| 2005 | 3.52 | 3.70 | 4.39 | 3.19 | 2.75 | 1.64 | 2.16 | 1.21 | 2.80 | 3.01 | 3.82 | 4.83 | 3.08 |
| 2004 | 4.36 | 3.31 | 2.81 | 3.35 | 2.48 | 1.73 | 1.89 | 1.88 | 3.09 | 3.42 | 4.50 | 4.27 | 3.09 |
| 2003 | 3.57 | 4.78 | 3.96 | 3.93 | 3.02 | 2.12 | 1.16 | 0.98 | 2.23 | 2.85 | 3.49 | 3.80 | 2.99 |
| 2002 | 3.45 | 3.95 | 4.07 | 3.67 | 3.47 | 2.24 | 2.09 | 1.51 | 2.26 | 2.78 | 3.90 | 4.14 | 3.13 |
| 2001 | 4.26 | 3.90 | 4.40 | 3.15 | 3.16 | 2.31 | 1.85 | 1.10 | 2.42 | 2.87 | 2.64 | 3.72 | 2.98 |
| Median | 4.31 | 4.49 | 4.37 | 3.59 | 2.99 | 1.95 | 1.61 | 1.40 | 2.17 | 3.00 | 3.88 | 4.46 | |
| P10 | 3.56 | 3.45 | 3.20 | 2.96 | 2.58 | 1.63 | 1.16 | 1.13 | 1.90 | 2.73 | 3.22 | 3.80 | |
| P90 | 5.07 | 5.12 | 4.90 | 4.51 | 3.74 | 2.21 | 2.00 | 1.64 | 2.54 | 3.44 | 4.65 | 5.23 | |
| Min. | 3.45 | 3.31 | 2.81 | 2.69 | 2.19 | 1.54 | 1.11 | 0.98 | 1.78 | 2.64 | 2.64 | 3.07 | |
| Max. | 5.71 | 5.72 | 5.32 | 4.78 | 3.96 | 2.31 | 2.16 | 1.88 | 3.09 | 3.64 | 4.96 | 5.99 |
CSV file
240 rows, 8 KB. Columns: period, value, unit, confidence level, status.
annee,mois,valeur,unite,niveau_confiance,statut 2001,1,4.2605,kWh/m²/jour,B,brut 2001,2,3.8974,kWh/m²/jour,B,brut 2001,3,4.3951,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_power_2001_2020?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_mensuel_120.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 this record | 2001-2020 | monthly | 3.20 | reference | |
| CAMS Radiation | 2004-2020 | monthly | 3.70 | +15.5 % | |
| CAMS Radiation | 2021-2023 | monthly | 3.65 | +14.1 % | |
| NASA POWER | 2021-2025 | daily | 3.44 | +7.4 % |
Notes
- Method
- Satellite model
- Unit
- kWh/m²/day
- Time step
- Monthly
- Period
- 2001-01-01 - 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). Direct normal irradiation, Kaloum (Guinea), 2001-2020. NASA POWER series, Guinea national energy data reference. DOI 10.5281/zenodo.21051755. https://kumascience.com/en/donnees/gin_conakry_dni_power_2001_2020
@misc{kuma_gin_conakry_dni_power_2001_2020,
author = {{Kuma Science}},
title = {Direct normal irradiation, Kaloum (Guinea), 2001-2020},
year = {2026},
howpublished = {NASA POWER series},
doi = {10.5281/zenodo.21051755},
url = {https://kumascience.com/en/donnees/gin_conakry_dni_power_2001_2020},
note = {License CC-BY 4.0}
}TY - DATA AU - Kuma Science TI - Direct normal irradiation, Kaloum (Guinea), 2001-2020 PY - 2026 PB - Kuma Science DO - 10.5281/zenodo.21051755 UR - https://kumascience.com/en/donnees/gin_conakry_dni_power_2001_2020 N1 - NASA POWER ER -
Also cite the primary source, whose licence applies to the published values.
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