Climate and monthly weather forecastRibeirão Preto, Brazil

The climate of Ribeirão Preto

Ribeirão Preto, a city located in the Brazilian state of São Paulo, experiences a tropical climate specifically categorized as Aw, under the Köppen Climate Classification, characterized as tropical wet and dry or savanna. The marking features of this climate type include significant variations in temperature and rainfall patterns, decoupling it from the consistent weather conditions expected in tropical regions.

Throughout the year, the city witnesses temperatures trending between 14.3°C (57.7°F) during the coldest month and soaring as high as 31.1°C (88°F) in the hottest month. It denotes considerable fluctuations in the temperature patterns, demanding adaptive lifestyle choices from the residents. Rainfall features a similar trend, with a striking difference between the wettest month, which sees a heavy downpour of 238mm (9.37"), and the driest month, barely accumulating 11mm (0.43"). The variable climate pattern exhibits the uniqueness of a tropical savanna climate with distinct wet and dry months.

Further, the city experiences a varying degree of daylight hours from the lowest 10.9 hours to the highest 13.4 hours, and sunshine hours falling between 7.2 hours and 9.4 hours. There is a noticeable fluctuation in wind speed too, scaling from 6.2km/h (3.9mph) to 8.9km/h (5.5mph). Moreover, the relative humidity ranges between 55% and 88%. These changes in weather parameters significantly influence the climate conditions.

Unique weather conditions are quite apparent in Ribeirão Preto. The month with the maximum rainfall contrasts starkly with the comparatively parched months, each featuring distinct weather patterns. Moreover, the particularly hot months bear a stark difference from the relatively cold ones.

The best time to visit Ribeirão Preto

Despite the prevalent climate variations, Ribeirão Preto extends a cordial welcome to travelers and adventurers all year round. Visitors looking to enjoy the best of the city's weather should consider dates within July and August, when the city experiences the lowest rainfall, measuring only 14mm (0.55") to 11mm (0.43") respectively, and the humidity falls to a comfortable level of 68% and 55%. The temperatures during these months range between a pleasant 14.5°C (58.1°F) and 28.8°C (83.8°F), ensuring an ideal ambiance for outdoor explorations.

The worst time to visit Ribeirão Preto

While the city remains open to visitors throughout the year, Ribeirão Preto presents weather extremities during some months. Visitors might want to avoid travel plans in December and January, when the city experiences the maximum rainfall of 238mm (9.37") and 177mm (6.97") respectively. Furthermore, the humidity levels peak to a stifling 87% during these months. The temperatures during these times fluctuate between the wet 19.6°C (67.3°F) to 28.3°C (82.9°F), which might not offer the most comfortable weather for outdoor activities.

Spring weather in Ribeirão Preto

Spring season in Ribeirão Preto, occurring from September to November, witnesses a moderate climb in the temperature ranging from 17.9°C (64.2°F) to 31.1°C (88°F). Rainfall during these months increases gradually from 45mm (1.77") to 194mm (7.64"). The sunlight hours extend from 12.0 hours to 13.1 hours complementing the increasing humidity levels. The wind speed, too, sees a rise from 8.9km/h (5.5mph) to 7.8km/h (4.8mph), marking the transition in season.

Summer weather in Ribeirão Preto

Summer in Ribeirão Preto, that spans from December to February, is characterized by high temperatures, varying between 19.3°C (66.7°F) and 28.3°C (82.9°F), accompanied by the peak rainfall months bearing 238mm (9.37"), 177mm (6.97"), and 151mm (5.94") respectively. The daylight hours extend up to 13.4 hours in December, gradually reducing to 12.2 hours by February. Wind speed during this period resides between 6.7km/h (4.2mph) to 6.2km/h (3.9mph), indicating calmer conditions.

Autumn weather in Ribeirão Preto

The autumn months in Ribeirão Preto, running from March to May, witness a gradual decrease in temperature, falling from 18.9°C (66°F) to 14.8°C (58.6°F) by May. Correspondingly, rainfall reduces from 151mm (5.94") in March to a mere 41mm (1.61") in May. The daylight hours dwindle from 12.2 hours to 11.1 hours along with reduced wind speed from 6.4km/h (4mph) to 6.7km/h (4.2mph) as the season progresses.

Winter weather in Ribeirão Preto

Winter in Ribeirão Preto, lasting from June to August, experiences moderate weather conditions. The temperatures range between 14.3°C (57.7°F) and 28.8°C (83.8°F), presenting a pleasant climate. Rainfall during this period is at its minimum, measuring only 29mm (1.14") in June and reducing to 11mm (0.43") by August. The daylight hours are relatively consistent staying in the range of 10.9 hours to 11.4 hours. The wind speed, ranging from 7.1km/h (4.4mph) to 8.8km/h (5.5mph), serves to further moderate the temperatures during this season.

Weather in January

The weather in January in Ribeirão Preto, Brazil, harbors a humid tropical climate, seen throughout the significant rainfall and fairly high temperatures. The city experiences an upward trend in both average daily high and low temperatures during this month. Weather in January »

Weather in February

The transition from January to February in Ribeirão Preto brings about moderate changes in weather conditions. Notably, February sustains the pervasive high-temperature trend but sees a slight decrease in average rainfall quantity and number of rainy days. Weather in February »

Weather in March

March in Ribeirão Preto retains much of February's warmth, although the high temperatures slightly wane. Interestingly, March reverses the declining rainfall trend observed in February and sees a rise in total rainfall, indicating the continuation of the region's wet season. Weather in March »

Weather in April

April greets Ribeirão Preto with a notable shift towards a drier climate. Both the amount of rainfall and its frequency reduce significantly in comparison to the preceding month, a trend which continues into May. Despite the receding high temperature during the day, April maintains a pleasant warmth with its average lowest temperature not falling below 17°C (62.6°F). Weather in April »

Weather in May

May in Ribeirão Preto, Brazil, solidifies the shift towards drier conditions, with a persistent decrease in rainfall from 69mm (2.72") in April to 41mm (1.61"). A continuity in the falling trend of average high and low temperatures characterizes this month, implying cooler days and nights. Weather in May »

Weather in June

Ribeirão Preto enters mid-year with June, bringing along with it a significant drop in both rainfall and humidity. Compared to May, the month witnesses a decline in average high temperatures, though the lowest do not depart much. Weather in June »

Weather in July

July in Ribeirão Preto can be deemed as the driest month of the year, with a mere 14mm (0.55") rainfall recorded. It also proves to be the coolest month, punctuating the prevalent fall in temperatures. Nonetheless, weather conditions tend to remain stable, as frictional variations between June and July become negligible. Weather in July »

Weather in August

The weather in August in Ribeirão Preto, Brazil, essentially takes forward July's conditions with only minor changes often observed. The average high temperatures tend to rise, indicating the onset of the warm season. Meanwhile, rainfall makes a minor climb upwards, though remaining markedly scant in comparison to the year's beginning. Weather in August »

Weather in September

September in Ribeirão Preto signals an early arrival of spring conditions, evident in the minor changes observed from August. Month-on-month, there's a slight increase in rainfall and average daytime and nighttime temperatures. Weather in September »

Weather in October

As the weather shifts from September to October in Ribeirão Preto, the city experiences a substantial increase in rainfall, from 45mm (1.77") to 136mm (5.35"). The number of rainy days and relative humidity also surge, reminiscent of the wet season's return. Weather in October »

Weather in November

In November, Ribeirão Preto witnesses an upward push in both the average high and low temperatures. The rainfall increases as well, and coupled with longer daylight hours, it hints at the transition towards summer. However, a slight decrease in the amount of sunshine and a rise in cloud cover become apparent when compared to October. Weather in November »

Weather in December

Closing off the year in Ribeirão Preto, December advances the warming trend and blends it with heightened precipitation. The city caps off its annual rainfall with an impressive 189mm (7.44"), marking it as the second-wettest month of the year. Weather in December »