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Monthly climate in Hatillo, Puerto Rico

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Hatillo features a tropical monsoon climate (Am).Temperatures typically range between 24 °C (76 °F) and 27 °C (81 °F) through the year, but rarely can drop to 18 °C (65 °F) or can rise to as high as 32 °C (91 °F).The average annual precipitation amounts to about 1156 mm (45.5 inches) and receives 197 rainy days on the 1 mm (0.04 inches) threshold annually.Hatillo enjoys an average of 3925 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 Hatillo, Puerto Rico §

The warmest months in Hatillo are July, August and September, with daily mean temperatures ranging from 27 to 27 °C (81 - 81 °F) throughout the day. The coldest temperatures usually occur in January, February and March, when daily mean temperatures range from 24 to 24 °C (76 - 76 °F) throughout the day. On average each year, Hatillo experiences 326 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 Hatillo, Puerto Rico.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
(84°F)		 30°C
(86°F)		 30°C
(86°F)		 30°C
(87°F)		 32°C
(91°F)		 32°C
(89°F)		 32°C
(90°F)		 32°C
(90°F)		 32°C
(90°F)		 31°C
(89°F)		 31°C
(88°F)		 31°C
(88°F)
Mean maximum 29°C
(84°F)		 29°C
(84°F)		 29°C
(85°F)		 30°C
(86°F)		 31°C
(88°F)		 31°C
(87°F)		 31°C
(89°F)		 32°C
(89°F)		 31°C
(89°F)		 31°C
(88°F)		 30°C
(86°F)		 29°C
(85°F)
Average high 27°C
(81°F)		 27°C
(81°F)		 27°C
(81°F)		 28°C
(82°F)		 29°C
(84°F)		 29°C
(85°F)		 30°C
(86°F)		 30°C
(86°F)		 30°C
(86°F)		 29°C
(85°F)		 29°C
(84°F)		 28°C
(82°F)
Daily mean 24°C
(76°F)		 24°C
(76°F)		 24°C
(76°F)		 25°C
(77°F)		 26°C
(79°F)		 27°C
(80°F)		 27°C
(81°F)		 27°C
(81°F)		 27°C
(81°F)		 27°C
(80°F)		 26°C
(79°F)		 25°C
(77°F)
Average low 22°C
(72°F)		 22°C
(72°F)		 22°C
(72°F)		 23°C
(73°F)		 24°C
(75°F)		 25°C
(77°F)		 25°C
(77°F)		 25°C
(78°F)		 25°C
(78°F)		 25°C
(77°F)		 24°C
(75°F)		 23°C
(74°F)
Mean minimum 21°C
(69°F)		 21°C
(70°F)		 21°C
(69°F)		 21°C
(70°F)		 23°C
(73°F)		 24°C
(75°F)		 24°C
(76°F)		 24°C
(76°F)		 24°C
(76°F)		 24°C
(75°F)		 22°C
(72°F)		 22°C
(71°F)
Minimum 18°C
(65°F)		 20°C
(68°F)		 20°C
(68°F)		 20°C
(69°F)		 22°C
(73°F)		 23°C
(74°F)		 24°C
(75°F)		 24°C
(75°F)		 24°C
(75°F)		 23°C
(74°F)		 22°C
(72°F)		 21°C
(71°F)

Compare climate in Hatillo with other places

Compare temperature, precipitation, sunshine, UV index in Hatillo, Puerto Rico with other places around the world.

Monthly average precipitation in Hatillo, Puerto Rico §

Hatillo usually has the most precipitation in September, October and November, with an average of 21 rainy days and 158 mm (6.2 inches) of precipitation per month.The driest months in Hatillo are January, February and December. On average, 44 mm (1.7 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Hatillo, Puerto Rico.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) 41 (1.6) 47 (1.8) 87 (3.4) 79 (3.1) 98 (3.9) 90 (3.5) 91 (3.6) 104 (4.1) 205 (8.1) 161 (6.4) 109 (4.3) 45 (1.8)
Average precipitation days (≥ 1 mm) 11 13 16 13 16 14 16 19 23 23 18 15

Monthly sunshine hours in Hatillo, Puerto Rico §

The sunniest months in Hatillo are May, July and August, when the sun shines an average of 11 hours 30 minutes a day.Least sunny months in Hatillo: January, February and November receive an average of 9 hours 35 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Hatillo, Puerto Rico.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 259 305 346 349 359 348 358 352 313 314 297 319
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 Hatillo, Puerto Rico §

Hatillo experiences the highest level of ultraviolet (UV) radiation in April, May and September, when the maximum UV index can reach values of 13 - 14, 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 Hatillo UV Index data.

Average daily maximum UV levels by month for Hatillo, Puerto Rico.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 14 13 13 13 13 12 9 8