Cabo Frio climate
Cabo Frio (Rio de Janeiro, Brazil) has a tropical savanna (dry winter) climate (Köppen Aw). The average temperature over the year is 24 °C74 °F, and about 1,319 mm52 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Cabo Frio climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin |
|---|---|---|---|---|
| Jan | 2679 | 2475 | 2577 | 1807.1 |
| Feb | 2780 | 2476 | 2678 | 1184.6 |
| Mar | 2780 | 2576 | 2678 | 1546.1 |
| Apr | 2679 | 2475 | 2577 | 883.5 |
| May | 2476 | 2272 | 2374 | 752.9 |
| Jun | 2475 | 2170 | 2272 | 391.5 |
| Jul | 2374 | 2069 | 2271 | 401.6 |
| Aug | 2373 | 2069 | 2271 | 401.6 |
| Sep | 2374 | 2069 | 2271 | 602.4 |
| Oct | 2475 | 2170 | 2373 | 983.9 |
| Nov | 2576 | 2272 | 2374 | 2088.2 |
| Dec | 2678 | 2374 | 2576 | 2218.7 |
| Year | 2780 | 2069 | 2474 | 1,31952 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 87% | 69% | 5.8 | 13:24 |
| Feb | 86% | 60% | 6.0 | 12:53 |
| Mar | 84% | 64% | 5.1 | 12:17 |
| Apr | 81% | 55% | 4.5 | 11:35 |
| May | 79% | 55% | 3.7 | 11:02 |
| Jun | 81% | 47% | 3.4 | 10:44 |
| Jul | 80% | 45% | 3.6 | 10:51 |
| Aug | 81% | 44% | 4.2 | 11:20 |
| Sep | 82% | 57% | 4.6 | 11:00 |
| Oct | 84% | 69% | 5.0 | 12:40 |
| Nov | 85% | 78% | 5.0 | 13:15 |
| Dec | 86% | 73% | 5.5 | 13:32 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Cabo Frio is like
The warmest month is March, with an average high of 27 °C80 °F and a low of 25 °C76 °F. The coldest is August, when highs average 23 °C73 °F and lows 20 °C69 °F. Seasonal differences are small — just 4.1 °C7.3 °F between the warmest and the coolest month.
It is wet, with about 1,319 mm52 in of precipitation per year. The wettest three-month stretch is November–January, which brings 46% of the annual total. The wettest month is December (221 mm8.7 in), the driest is June (39 mm1.5 in).
Relative humidity ranges from 79% in May to 87% in January. The clearest skies (lowest average cloud amount, 44%) are typical of August. Average wind speed near the ground ranges from 14 km/h (8 mph) in March to 18 km/h (11 mph) in September. Daylight lasts from about 10.7 hours in June to 13.5 hours in December.
Best time to visit Cabo Frio
Based on these averages, the most comfortable months for sightseeing and outdoor activities are May–October. Average highs then reach 23 °C73 °F to 24 °C76 °F. Precipitation is 39 mm1.5 in to 98 mm3.9 in per month.
The most challenging month is December, which is very wet (221 mm8.7 in) and humid (86% relative humidity).
Comfort score: months are ranked by how close they come to an ideal. That means an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for Cabo Frio
- Wetter months (November–March) — highs 2576 to 27 °C80 °F, lows 2272 to 25 °C76 °F, about 176 mm6.9 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and an umbrella or light rain jacket.
- Drier months (April–October) — highs 2373 to 26 °C79 °F, lows 2069 to 24 °C75 °F, about 63 mm2.5 in of precipitation a month. Pack light layers — T-shirts plus a light sweater or jacket.
How Cabo Frio compares
The nearest larger place is Macaé, about 61 km to the northeast. Compared with it, Cabo Frio is on average 0.4 °C0.7 °F cooler. It receives 12% more precipitation (1,319 mm52 in vs 1,175 mm46 in). The difference is largest in October (1 °C1.8 °F cooler).
World Climates covers 223 places in Brazil. By annual mean temperature, Cabo Frio is the 117th warmest of them. By annual precipitation, it is the 107th wettest. See all of them on the Brazil climate page.
Some places in other countries have a very similar pattern of temperature and rainfall. The closest matches are Durban (South Africa, Aw), Bukoba (Tanzania, Aw) and Nouméa (New Caledonia, As).
The same NASA POWER grid cell also contains São Pedro da Aldeia (pop. 110,677). Their long-term averages in this dataset are essentially the same as for Cabo Frio, so they do not have separate pages.
Nearby places
- Climate in Araruama 32 km · 24 °C75 °F · 1,362 mm54 in
- Climate in Macaé 61 km · 24 °C75 °F · 1,175 mm46 in
- Climate in Maricá 81 km · 24 °C75 °F · 1,469 mm58 in
- Climate in Nova Friburgo 85 km · 19 °C66 °F · 1,336 mm53 in
- Climate in Itaboraí 87 km · 24 °C76 °F · 1,357 mm53 in
- Climate in Rio de Janeiro 118 km · 24 °C75 °F · 1,469 mm58 in
- Climate in Petrópolis 126 km · 19 °C67 °F · 1,357 mm53 in
- Climate in Campos dos Goytacazes 145 km · 24 °C76 °F · 1,114 mm44 in
Frequently asked questions
What is the warmest month in Cabo Frio?
March is the warmest month in Cabo Frio. Its average high is 27 °C (80 °F) and its average low is 25 °C (76 °F).
What is the coldest month in Cabo Frio?
August is the coldest month. Its average high is 23 °C (73 °F) and its average low is 20 °C (69 °F).
When does it rain the most in Cabo Frio?
December is the wettest month with about 221 mm (8.7 in) of precipitation. June is the driest with about 39 mm (1.5 in).
What is the best time to visit Cabo Frio?
Judging by long-term averages, the most comfortable months are May–October.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station. So they can differ from airport records. The gaps are largest on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.