Brasília has a tropical savanna climate (Aw) with two distinct seasons: a dry winter from May to September and a wet summer from October to April. At 1,172 meters (3,845 ft) on Brazil’s Central Plateau, the altitude keeps temperatures comfortable year-round. Average highs range from 25°C to 29°C (77°F to 84°F) and overnight lows drop to 13°C to 19°C (55°F to 66°F). The city receives roughly 1,500mm (59 inches) of rain annually, almost all of it falling between October and April. Humidity swings dramatically between seasons: 70-80% during the wet months, dropping to 20-40% in the dry winter.
Brasília Weather in January
January is the heart of the wet season, receiving 240-280mm (9.5-11 inches) of rainfall across roughly 18 rainy days. Expect heavy but typically short afternoon downpours, morning sightseeing works fine. Average high is 27°C (81°F), low 17°C (63°F), and humidity sits around 75-80%. Sunshine averages 5-6 hours per day. The Lago Paranoá water temperature is about 24°C (75°F). Afternoon thunderstorms can be dramatic but usually clear by early evening.
Brasília Weather in February
February continues the wet pattern with 200-240mm (8-9.5 inches) of rain across 15-17 rainy days. Temperatures are nearly identical to January: highs of 27-28°C (81-82°F), lows of 17-18°C (63-64°F). Humidity stays elevated at 75%. The city’s famous ipê trees (pink and yellow varieties) begin blooming this month, making it a good time for photography despite the rain. Carnival sometimes falls in February, bringing crowds regardless of weather.
Brasília Weather in March
March sees the rainy season begin to taper, with 180-220mm (7-8.5 inches) of rain over 14-16 days. Temperatures remain stable: highs of 27°C (81°F), lows of 17°C (63°F). Afternoon storms are still frequent but tend to arrive later in the day. Humidity starts dropping slightly to 70-75%. The yellow ipê bloom peaks in March, making the Eixo Monumental particularly photogenic.
Brasília Weather in April
April marks the transition from wet to dry season. Rainfall drops sharply to 100-140mm (4-5.5 inches) across 8-10 days. Highs reach 27°C (81°F) while lows dip to 16°C (61°F). Humidity falls to 65-70%. This is one of the best months for visitors, combining fewer crowds with mostly dry days and pleasant temperatures. The cerrado (Brazilian savanna) surrounding the city is still green from the wet-season rains.
Brasília Weather in May
May is firmly in the dry season with only 25-40mm (1-1.5 inches) of rain across 3-5 days. Daytime highs drop slightly to 26°C (79°F) and nighttime lows fall to 14-15°C (57-59°F). Humidity plunges to 55-60% and sunshine increases to 8 hours daily. The famous Brasília blue sky, deep and cloudless, becomes a daily feature. This is the start of the most comfortable period for outdoor sightseeing.
Brasília Weather in June
June is the driest month alongside July, recording just 5-10mm (0.2-0.4 inches) of rain across 1-2 days, and some years, zero measurable rainfall. Daytime highs average 25°C (77°F) and overnight lows drop to 12-13°C (54-55°F), making early mornings genuinely cool. Humidity bottoms out at 45-55%, the lowest of the year. Pack a light jacket for evenings. The cerrado turns golden-brown as the dry season peaks.
Brasília Weather in July
July mirrors June as the driest month, with 5-10mm (0.2-0.4 inches) of rain. Highs reach 25°C (77°F) and lows fall to 11-12°C (52-54°F), the coldest nights of the year. Humidity stays at 45-50%. Blue skies are virtually guaranteed every day. The Parque da Cidade is packed with joggers and families on weekends. Winter school holidays (mid-July) bring more domestic tourists.
Brasília Weather in August
August brings the dry season’s hottest temperatures, with highs climbing back to 27-28°C (81-82°F). Lows rise to 13-14°C (55-57°F). Rainfall increases marginally to 15-20mm (0.6-0.8 inches) across 2-3 days. Humidity remains low at 45-50%. This is wildfire season in the cerrado, air quality can occasionally be affected by regional burning, though rarely within the city itself. The purple ipê blooms in August.
Brasília Weather in September
September is the hottest month, with highs reaching 29°C (84°F). Lows linger at 15-16°C (59-61°F). Rainfall increases to 40-60mm (1.5-2.5 inches) across 4-6 days, the first significant showers since April. Humidity rises to 50-55%. The smoke season can persist early in the month. By late September, the first rains return and the cerrado begins greening again. Independence Day (September 7) draws crowds to the Esplanada dos Ministérios.
Brasília Weather in October
October brings the full return of rains with 130-170mm (5-6.5 inches) across 10-12 days. Highs reach 28°C (82°F), lows 17°C (63°F). Humidity jumps to 65-70%. Afternoon thunderstorms resume their daily rhythm. The cerrado transforms from brown to green within weeks of the first rains. The contrasting landscape and dramatic storm clouds make for excellent photography, and the city’s modernist architecture looks striking against dark skies.
Brasília Weather in November
November is the second-wettest month, receiving 200-230mm (8-9 inches) across 15-17 rainy days. Highs reach 27°C (81°F), lows 17°C (63°F), and humidity settles at 70-75%. Thunderstorms are frequent but rarely last more than two hours. The city’s green spaces, including Parque da Cidade and the botanical garden, are at their lushest. Fewer tourists mean shorter lines at attractions like the Catedral Metropolitana.
Brasília Weather in December
December is the wettest month with 240-270mm (9.5-10.5 inches) of rain across 18-20 days. Highs average 27°C (81°F), lows 18°C (64°F). Humidity peaks at 75-80%. Rain falls mostly in heavy afternoon bursts, leaving mornings clear for outdoor activities. The holiday season brings festive decorations to the Esplanada and congress buildings. Christmas Eve and New Year’s Eve typically see evening gatherings around Lago Paranoá.
| Month | High (°C/°F) | Low (°C/°F) | Rain (mm) | Rain Days | Sun (hrs) | Humidity |
|---|---|---|---|---|---|---|
| Jan | 27 / 81 | 17 / 63 | 260 | 18 | 5.5 | 78% |
| Feb | 28 / 82 | 17 / 63 | 220 | 16 | 6 | 75% |
| Mar | 27 / 81 | 17 / 63 | 200 | 15 | 6 | 73% |
| Apr | 27 / 81 | 16 / 61 | 120 | 9 | 7 | 68% |
| May | 26 / 79 | 14 / 57 | 30 | 4 | 8 | 58% |
| Jun | 25 / 77 | 12 / 54 | 8 | 1 | 9 | 50% |
| Jul | 25 / 77 | 11 / 52 | 8 | 1 | 9 | 48% |
| Aug | 28 / 82 | 13 / 55 | 18 | 3 | 8.5 | 48% |
| Sep | 29 / 84 | 15 / 59 | 50 | 5 | 7 | 53% |
| Oct | 28 / 82 | 17 / 63 | 150 | 11 | 6 | 67% |
| Nov | 27 / 81 | 17 / 63 | 215 | 16 | 5.5 | 73% |
| Dec | 27 / 81 | 18 / 64 | 255 | 19 | 5 | 78% |
