Table 2: Average sun hours of Turkey’s provinces [26].

Geographical regionProvincesAverage sun hours (hour/day)
JanFebMarAprMayJunJulAugSepOctNovDec

MarmaraBalikesir4.055.055.927.269.2310.9911.4410.658.846.534.693.64
Bilecik3.314.454.776.278.759.8610.489.758.485.864.443.31
Bursa3.714.515.646.968.9010.1110.789.988.495.844.353.40
Çanakkale4.215.506.287.779.5411.5611.8511.019.006.814.933.83
Edirne3.935.315.947.699.5410.9611.7310.718.886.034.563.37
Istanbul3.464.435.326.858.6110.5111.1710.147.835.223.852.96
Kirklareli3.685.095.437.378.9311.4712.5011.238.305.324.222.87
Kocaeli3.294.175.206.558.569.7910.449.597.965.403.953.06
Sakarya3.204.235.016.338.399.7210.359.568.015.534.053.09
Tekirdağ3.694.965.547.269.0511.2111.9210.938.325.664.153.13
Yalova3.274.255.416.848.789.9610.709.758.155.534.053.04

AegeanAfyon3.915.175.647.059.2710.7111.3610.739.396.825.123.74
Aydin5.165.987.008.099.7611.7912.0911.459.857.675.764.45
Denizli4.885.756.867.909.6411.3611.8311.199.737.355.614.23
Izmir4.865.866.968.039.7711.8912.2011.489.677.615.554.27
Kütahya3.714.785.506.658.9110.2910.7710.098.906.264.753.51
Manisa4.605.456.577.629.4911.3211.7711.069.267.115.223.94
Muğla5.136.207.128.189.9111.7311.9011.319.927.856.014.67
Uşak4.605.336.467.489.3710.8311.4210.769.386.935.143.98

MediterraneanAdana4.675.656.977.849.7211.2911.7711.2210.157.785.864.21
Antalya4.956.107.248.299.7011.5511.8411.299.807.685.974.55
Burdur4.745.826.987.979.6111.4011.8511.259.787.455.724.23
Hatay5.096.227.178.2810.2311.1410.8910.479.807.866.374.99
Isparta4.385.466.827.779.4211.1011.7011.139.647.175.443.95
Kahramanmaraş4.215.476.617.859.5711.4912.0711.4310.137.555.563.86
Mersin4.996.047.358.389.9411.1811.4511.0310.027.916.154.64

Black SeaAmasya3.574.655.486.608.169.5810.149.708.116.114.513.19
Artvin3.494.135.566.617.128.107.657.646.865.384.273.14
Bartin3.314.305.296.667.819.9410.799.947.645.414.082.96
Bolu3.284.415.196.538.319.7310.449.748.155.784.263.12
Çorum3.604.795.926.998.299.9110.6610.168.326.194.573.21
Düzce3.174.255.206.378.219.7110.409.677.965.604.033.04
Gümüşhane3.024.605.546.748.179.259.308.998.285.954.432.99
Kastamonu3.394.445.456.657.869.8210.669.877.675.584.263.10
Ordu3.444.404.776.247.969.068.928.607.725.804.343.11
Rize3.384.215.216.407.478.197.757.547.195.374.173.02
Samsun3.604.415.176.437.929.159.528.977.615.724.323.22
Sinop3.464.425.356.627.809.4410.089.327.575.564.323.21
Tokat3.604.725.506.718.279.7410.129.798.406.334.623.20
Trabzon3.174.294.886.167.648.357.907.627.435.424.202.99
Zonguldak3.274.255.376.628.109.8310.599.797.845.544.023.07

Central AnatoliaAnkara3.734.896.167.218.7610.2111.0610.458.836.484.733.35
Aksaray4.115.406.807.979.3611.2712.1211.539.817.365.453.73
Çankiri3.694.756.247.088.279.9010.7010.098.236.054.473.21
Karaman4.465.857.148.449.8411.5112.0211.4710.117.775.954.31
Kayseri4.085.316.377.599.2111.2212.0311.479.847.395.393.55
Kirikkale3.794.996.577.488.6610.3211.1710.638.846.574.763.31
Kirşehir3.975.186.617.729.0210.7811.7311.159.326.985.073.51
Konya4.195.516.888.039.4611.2811.9711.359.797.355.533.93
Niğde4.415.486.747.859.5111.3912.1611.5710.067.615.653.90
Nevşehir4.075.326.437.659.1611.1712.0511.489.687.275.353.57
Sivas3.765.025.997.208.7310.5011.0910.659.236.804.973.30
Yozgat3.805.126.107.298.7210.6011.4110.929.106.854.993.33

Eastern AnatoliaAğri4.105.436.257.629.0810.8211.3210.799.457.145.423.96
Ardahan3.754.316.016.937.128.768.858.947.335.904.683.42
Bingöl4.084.936.027.189.0811.0111.5110.879.546.874.893.45
Bitlis3.464.725.567.139.2710.9511.3110.629.816.865.193.59
Elaziğ4.135.146.377.569.3911.4512.0111.339.867.145.123.56
Erzincan3.734.856.157.148.6310.2910.6710.239.126.524.713.27
Erzurum3.854.715.826.958.289.8610.309.918.506.244.573.31
Hakkari6.658.178.929.9511.3112.7112.6111.8510.708.697.426.42
Iğdir5.887.348.439.6410.8712.3412.5911.6510.258.336.865.61
Kars3.824.746.247.047.909.8910.5510.368.156.464.823.44
Malatya4.235.306.597.869.4111.4312.0911.449.967.285.263.64
Muş3.664.805.567.259.1310.8311.4210.769.606.894.983.47
Tunceli4.024.996.257.279.0010.8811.4310.869.496.854.883.41
Van5.276.407.398.5010.1111.5511.6510.9710.317.656.164.93

Southeastern AnatoliaAdiyaman4.515.496.748.089.7011.7812.2511.5210.177.565.564.01
Batman3.925.026.167.649.7111.7212.0911.3410.057.335.483.92
Diyarbakir3.734.896.167.218.7610.2111.0610.458.936.484.733.35
Gaziantep4.605.786.828.109.9311.6311.7411.0710.037.805.984.38
Kilis4.705.926.808.1210.1511.4811.4310.869.817.866.144.58
Mardin4.355.456.747.9010.0112.5212.8412.0310.077.595.834.43
Siirt3.845.006.047.389.6411.5211.7811.079.997.195.534.02
Şanliurfa4.685.626.928.149.9612.2412.4211.6610.117.715.874.40