Guyana Climatic Classifications

Summary: Most regions (9) in Guyana lie in the Tropical rainforest climate zone (Köppen: Af). The mean average of annual temperatures range from a high of 29.22°C (84.6°F) in Upper Takutu-Upper Essequibo to a low of 24.35°C (75.83°F) in Cuyuni-Mazaruni.

Climate Guyana: Weather By Month

Month Jan Feb Mar Apr May Jun Jul Aug Sep Nov Oct Dec Year
Record high °C (°F) 33.42(92.16) 33.5(92.3) 34.28(93.7) 33.09(91.56) 30.85(87.53) 30.5(86.9) 30.93(87.67) 32.41(90.34) 33.68(92.62) 34.19(93.54) 33.43(92.17) 32.81(91.06) 34.28(93.7)
Average high °C (°F) 30.18(86.32) 30.11(86.2) 31.12(88.02) 31.03(87.85) 30.05(86.09) 29.86(85.75) 30.24(86.43) 31.56(88.81) 32.67(90.81) 32.81(91.06) 31.71(89.08) 30.36(86.65) 30.98(87.76)
Daily mean °C (°F) 26.96(80.53) 26.93(80.47) 27.82(82.08) 27.96(82.33) 27.4(81.32) 27.16(80.89) 27.3(81.14) 28.19(82.74) 29.01(84.22) 29.16(84.49) 28.35(83.03) 27.28(81.1) 27.79(82.02)
Average low °C (°F) 21.42(70.56) 21.66(70.99) 22.1(71.78) 22.54(72.57) 22.77(72.99) 22.3(72.14) 21.95(71.51) 22.15(71.87) 22.51(72.52) 22.65(72.77) 22.6(72.68) 22.04(71.67) 22.22(72.0)
Record low °C (°F) 17.73(63.91) 17.97(64.35) 18.41(65.14) 18.83(65.89) 19.33(66.79) 18.88(65.98) 18.3(64.94) 18.17(64.71) 18.1(64.58) 17.99(64.38) 18.53(65.35) 18.19(64.74) 17.73(63.91)
Average precipitation mm (inches) 61.45(2.42) 56.69(2.23) 47.27(1.86) 82.98(3.27) 175.6(6.91) 185.43(7.3) 162.55(6.4) 133.24(5.25) 88.43(3.48) 82.96(3.27) 122.6(4.83) 116.54(4.59) 109.64(4.32)
Average precipitation days (≥ 1.0 mm) 14.47 14.49 12.66 15.91 23.43 23.16 23.51 19.96 16.52 15.01 17.45 17.77 17.86
Average relative humidity (%) 77.95 77.83 74.96 76.89 83.04 84.73 84.08 80.84 77.22 75.79 78.84 80.45 79.39
Mean monthly sunshine hours 8.9 9.69 10.67 10.87 10.66 11.36 11.78 11.87 10.86 10.54 10.2 9.14 10.54

Guyana Climate Graph

Guyana’s Cities by Temperature

Guyana’s states/regions ranking by average yearly temperature:

Upper Takutu-Upper Essequibo
29.22°C | 84.6°F
Potaro-Siparuni
29.22°C | 84.6°F
Upper Demerara-Berbice
28.08°C | 82.54°F
Mahaica-Berbice
28.06°C | 82.51°F
Demerara-Mahaica
28.06°C | 82.51°F
Pomeroon-Supenaam
28.06°C | 82.51°F
Essequibo Islands-West Demerara
28.06°C | 82.51°F
Barima-Waini
27.71°C | 81.88°F
East Berbice-Corentyne
27.12°C | 80.82°F
Cuyuni-Mazaruni
24.35°C | 75.83°F

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