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Cayenne Climate & Temperature

  • Cayenne, French Guiana is at 4°49'N, 52°22'W, 9 m (30 ft). See map.
  • Cayenne has a tropical monsoonal climate (Köppen-Geiger classification: Am) with a dry season and a heavy monsoon the rest of year, no cold season.
  • According to the Holdridge life zones system of bioclimatic classification Cayenne is situated in or near the subtropical wet forest biome.
  • The annual average temperature is 26.8 degrees Celsius (80.2 degrees Fahrenheit). See the temperatures page for a monthly breakdown and the fixed scale graph.
  • Average monthly temperatures vary by 1.5 °C (2.7°F). This indicates that the continentality type is hyperoceanic, subtype extremely hyperoceanic. Cayenne Climate Graph
  • Total annual Precipitation averages 3744 mm (147.4 inches) which is equivalent to 3744 Litres/m² (91.83 Gallons/ft²).
  • On average there are 2224 hours of sunshine per year. Visit the sunshine and daylight section to check monthly details including how high in the sky the sun reaches each month.
  • Were you to burrow down through the centre of the Earth from Cayenne you would pop up nearest to the climate station at Ambon, Maluku Islands, Indonesia where you would find a Tropical wet climate.

Cayenne Climate Table

  Climate Variable Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
 
Average Max Temperature °C ( °F) 29 (84) 29 (84) 29 (84) 30 (86) 29 (84) 31 (88) 31 (88) 32 (90) 32 (90) 32 (90) 31 (88) 30 (86) 30 (87)
 
Average Temperature °C ( °F) 26 (79) 26 (79) 26 (79) 27 (81) 26 (79) 27 (81) 27 (81) 28 (82) 28 (82) 28 (82) 27 (81) 27 (80) 27 (80)
 
Average Min Temperature °C ( °F) 23 (73) 23 (73) 23 (73) 24 (75) 23 (73) 23 (73) 23 (73) 23 (73) 23 (73) 23 (73) 23 (73) 23 (73) 23 (74)
 
Average Precipitation mm (in) 431 (17) 423 (17) 432 (17) 480 (19) 590 (23) 457 (18) 274 (11) 144 (6) 32 (1) 42 (2) 122 (5) 317 (12) 3744 (147)
Number of Wet Days (probability of rain on a day %) 23 (74) 20 (71) 21 (68) 19 (63) 25 (81) 26 (87) 21 (68) 14 (45) 6 (20) 5 (16) 11 (37) 21 (68) 212 (58)
Average Sunlight Hours/ Day 4h 36' 4h 00' 4h 25' 4h 20' 4h 25' 5h 40' 6h 42' 7h 30' 8h 42' 8h 34' 7h 48' 6h 11' 6h 05'
Average Daylight Hours/ Day 11h 52' 11h 57' 12h 05' 12h 13' 12h 20' 12h 23' 12h 22' 12h 16' 12h 08' 12h 00' 11h 53' 11h 50' 12h 00'
Percentage of Sunny (Cloudy) Daylight Hours 39 (61) 34 (66) 37 (63) 36 (64) 36 (64) 46 (54) 55 (45) 62 (38) 72 (28) 72 (28) 66 (34) 53 (47) 51 (49)
Sun altitude at solar noon on the 21st day (°). 65.2 74.4 85.2 82.9 74.6 71.4 74.4 82.8 85.4 73.9 64.9 61.7 74.8

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