Monthly climate in Vassouras, Rio de Janeiro, Brazil

Last updated: March 2, 2024

Under the Köppen–Geiger climate classification Vassouras features a humid subtropical climate (Cfa). Temperatures typically range between 18 °C (65 °F) and 25 °C (78 °F) through the year, but rarely can drop to 6 °C (43 °F) or can rise to as high as 37 °C (100 °F). The average annual precipitation amounts to about 1454 mm (57.3 inches) and receives 162 rainy days on the 1 mm (0.04 inches) threshold annually. Vassouras enjoys an average of 3333 hours of sunshine throughout the year, and daylight varies from 10 hours 45 minutes to 13 hours 28 minutes per day.

Monthly average temperatures in Vassouras, Rio de Janeiro, Brazil §

The warmest months in Vassouras are January, February and March, with daily mean temperatures ranging from 24 to 25 °C (76 - 78 °F) throughout the day. The coldest temperatures usually occur in June, July and August, when daily mean temperatures range from 18 to 20 °C (65 - 68 °F) throughout the day. On average each year, Vassouras experiences 228 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 Vassouras, Rio de Janeiro, Brazil. 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 35°C
(95°F)
35°C
(96°F)
34°C
(94°F)
34°C
(93°F)
31°C
(88°F)
31°C
(89°F)
30°C
(87°F)
33°C
(91°F)
36°C
(97°F)
37°C
(100°F)
35°C
(95°F)
34°C
(93°F)
Mean maximum 34°C
(94°F)
34°C
(93°F)
33°C
(92°F)
32°C
(90°F)
31°C
(87°F)
29°C
(85°F)
29°C
(85°F)
32°C
(89°F)
34°C
(94°F)
34°C
(94°F)
33°C
(93°F)
33°C
(92°F)
Average high 30°C
(87°F)
29°C
(84°F)
29°C
(85°F)
27°C
(81°F)
25°C
(78°F)
25°C
(77°F)
24°C
(76°F)
24°C
(76°F)
27°C
(82°F)
27°C
(81°F)
26°C
(80°F)
28°C
(83°F)
Daily mean 25°C
(78°F)
24°C
(76°F)
24°C
(76°F)
22°C
(72°F)
20°C
(68°F)
20°C
(68°F)
18°C
(65°F)
19°C
(66°F)
22°C
(72°F)
22°C
(73°F)
22°C
(72°F)
24°C
(75°F)
Average low 21°C
(71°F)
21°C
(70°F)
20°C
(69°F)
18°C
(65°F)
16°C
(61°F)
16°C
(61°F)
14°C
(57°F)
15°C
(59°F)
18°C
(64°F)
19°C
(66°F)
19°C
(66°F)
20°C
(69°F)
Mean minimum 19°C
(66°F)
18°C
(65°F)
17°C
(63°F)
15°C
(59°F)
11°C
(52°F)
12°C
(54°F)
10°C
(50°F)
10°C
(50°F)
14°C
(57°F)
15°C
(59°F)
14°C
(58°F)
17°C
(62°F)
Minimum 16°C
(62°F)
18°C
(64°F)
14°C
(58°F)
13°C
(55°F)
7°C
(45°F)
10°C
(50°F)
7°C
(45°F)
6°C
(43°F)
12°C
(53°F)
13°C
(57°F)
12°C
(53°F)
14°C
(58°F)

Compare climate in Vassouras with other places

Compare temperature, precipitation, sunshine, UV index in Vassouras, Rio de Janeiro, Brazil with other places around the world.

Monthly average precipitation in Vassouras, Rio de Janeiro, Brazil §

Vassouras usually has the most precipitation in February, November and December, with an average of 20 rainy days and 225 mm (8.9 inches) of precipitation per month. The driest months in Vassouras are June, July and August. On average, 32 mm (1.3 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Vassouras, Rio de Janeiro, Brazil. 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) 201 (7.9) 243 (9.6) 177 (7.0) 76 (3.0) 59 (2.3) 29 (1.1) 20 (0.8) 48 (1.9) 52 (2.0) 117 (4.6) 205 (8.1) 228 (9.0)
Average precipitation days (≥ 1 mm) 17 20 19 12 8 7 5 7 8 17 19 23

Monthly sunshine hours in Vassouras, Rio de Janeiro, Brazil §

The sunniest months in Vassouras are March, July and December, when the sun shines an average of 9 hours 31 minutes a day. Least sunny months in Vassouras: January, February and October receive an average of 8 hours 35 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Vassouras, Rio de Janeiro, Brazil. 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 256 263 300 288 280 271 290 267 290 261 266 294
Mean daily daylight hours 13h 19m 12h 49m 12h 10m 11h 32m 11h 0m 10h 45m 10h 53m 11h 21m 11h 58m 12h 36m 13h 11m 13h 28m

Solar UV radiation in Vassouras, Rio de Janeiro, Brazil §

Vassouras experiences the highest level of ultraviolet (UV) radiation in January, February and December, when the maximum UV index can reach values of 15 - 16, which corresponds to the Extreme category of sun exposure. May, June and July are in the High / Very High exposure category. In these months, the maximum values of the UV index do not exceed 8. For more detailed information, check out our hourly Vassouras UV Index data.

Average daily maximum UV levels by month for Vassouras, Rio de Janeiro, Brazil. 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) 16 15 13 11 8 6 7 9 11 13 13 15

Detailed Monthly Weather Insights for Vassouras, Rio de Janeiro, Brazil

Discover in-depth weather details for every month in Vassouras. Click through the links below for comprehensive overviews of temperature trends, precipitation levels, sunshine hours, and solar UV radiation specifics. Whether planning a visit or simply curious about Vassouras's climate nuances, these monthly breakdowns provide the information you need for an informed understanding of what to expect throughout the year.

Each link leads to a detailed account of the typical weather conditions for that month, providing both locals and tourists with vital information to plan their daily activities, wardrobe, and travel itineraries accordingly.