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Monthly climate in Duncans, Trelawny, Jamaica

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Duncans features a tropical savanna climate (Aw).Temperatures typically range between 24 °C (76 °F) and 28 °C (83 °F) through the year, but rarely can drop to 19 °C (66 °F) or can rise to as high as 33 °C (92 °F).The average annual precipitation amounts to about 1181 mm (46.5 inches) and receives 206 rainy days on the 1 mm (0.04 inches) threshold annually.Duncans enjoys an average of 3759 hours of sunshine throughout the year, and daylight varies from 11 hours 1 minutes to 13 hours 12 minutes per day.

Monthly average temperatures in Duncans, Trelawny, Jamaica §

The warmest months in Duncans are July, August and September, with daily mean temperatures ranging from 28 to 28 °C (82 - 83 °F) throughout the day. The coldest temperatures usually occur in January, February and March, when daily mean temperatures range from 24 to 25 °C (76 - 77 °F) throughout the day. On average each year, Duncans experiences 324 days above 25 °C (77.0 °F) and 0 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Duncans, Trelawny, Jamaica.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to June 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum 29°C
(85°F)		 29°C
(85°F)		 30°C
(86°F)		 31°C
(89°F)		 32°C
(90°F)		 33°C
(91°F)		 33°C
(92°F)		 32°C
(91°F)		 33°C
(91°F)		 31°C
(88°F)		 30°C
(87°F)		 30°C
(86°F)
Mean maximum 29°C
(84°F)		 28°C
(83°F)		 29°C
(84°F)		 30°C
(86°F)		 31°C
(88°F)		 32°C
(89°F)		 32°C
(91°F)		 32°C
(90°F)		 32°C
(89°F)		 31°C
(87°F)		 30°C
(86°F)		 29°C
(85°F)
Average high 27°C
(80°F)		 27°C
(81°F)		 27°C
(81°F)		 28°C
(83°F)		 29°C
(85°F)		 30°C
(87°F)		 31°C
(87°F)		 31°C
(88°F)		 30°C
(87°F)		 29°C
(85°F)		 28°C
(83°F)		 27°C
(82°F)
Daily mean 24°C
(76°F)		 25°C
(77°F)		 25°C
(77°F)		 26°C
(78°F)		 27°C
(80°F)		 27°C
(82°F)		 28°C
(82°F)		 28°C
(83°F)		 28°C
(82°F)		 27°C
(81°F)		 26°C
(79°F)		 25°C
(78°F)
Average low 23°C
(73°F)		 23°C
(73°F)		 23°C
(73°F)		 24°C
(75°F)		 25°C
(77°F)		 25°C
(78°F)		 26°C
(79°F)		 26°C
(79°F)		 26°C
(78°F)		 25°C
(78°F)		 24°C
(76°F)		 24°C
(75°F)
Mean minimum 21°C
(70°F)		 21°C
(71°F)		 22°C
(71°F)		 22°C
(73°F)		 23°C
(74°F)		 24°C
(76°F)		 25°C
(77°F)		 25°C
(77°F)		 25°C
(76°F)		 24°C
(76°F)		 23°C
(74°F)		 22°C
(72°F)
Minimum 19°C
(66°F)		 20°C
(69°F)		 20°C
(69°F)		 22°C
(71°F)		 23°C
(74°F)		 24°C
(75°F)		 24°C
(76°F)		 24°C
(76°F)		 24°C
(76°F)		 24°C
(75°F)		 23°C
(74°F)		 22°C
(71°F)

Compare climate in Duncans with other places

Compare temperature, precipitation, sunshine, UV index in Duncans, Trelawny, Jamaica with other places around the world.

Monthly average precipitation in Duncans, Trelawny, Jamaica §

Duncans usually has the most precipitation in May, September and October, with an average of 22 rainy days and 161 mm (6.3 inches) of precipitation per month.The driest months in Duncans are January, February and June. On average, 56 mm (2.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Duncans, Trelawny, Jamaica.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average precipitation mm (inches) 63 (2.5) 34 (1.3) 80 (3.2) 81 (3.2) 143 (5.6) 71 (2.8) 77 (3.0) 91 (3.6) 165 (6.5) 174 (6.9) 129 (5.1) 73 (2.9)
Average precipitation days (≥ 1 mm) 12 12 16 16 19 12 15 18 24 25 21 16

Monthly sunshine hours in Duncans, Trelawny, Jamaica §

The sunniest months in Duncans are March, April and July, when the sun shines an average of 11 hours 9 minutes a day.Least sunny months in Duncans: January, October and November receive an average of 8 hours 59 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Duncans, Trelawny, Jamaica.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mean monthly sunshine hours 243 299 340 339 326 329 345 331 311 298 285 307
Mean daily daylight hours 11h 8m 11h 32m 12h 2m 12h 33m 12h 59m 13h 12m 13h 5m 12h 42m 12h 12m 11h 41m 11h 14m 11h 1m

Solar UV radiation in Duncans, Trelawny, Jamaica §

Duncans experiences the highest level of ultraviolet (UV) radiation in April, August and September, when the maximum UV index can reach values of 13 - 13, which corresponds to the Extreme category of sun exposure.January, November and December are in the Very High exposure category. In these months, the maximum values of the UV index do not exceed 9. For more detailed information, check out our hourly Duncans UV Index data.

Average daily maximum UV levels by month for Duncans, Trelawny, Jamaica.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2022 to January 2023.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (month maximum) 9 11 13 13 13 13 13 13 13 12 9 8