Bacabal climate
Bacabal (Maranhão, Brazil) has a tropical savanna (dry winter) climate (Köppen Aw). The average temperature over the year is 28 °C82 °F, and about 1,513 mm60 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Bacabal climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin |
|---|---|---|---|---|
| Jan | 3188 | 2374 | 2781 | 2128.4 |
| Feb | 3085 | 2374 | 2680 | 27811 |
| Mar | 2985 | 2374 | 2679 | 29512 |
| Apr | 2985 | 2374 | 2679 | 29312 |
| May | 3085 | 2374 | 2680 | 1566.1 |
| Jun | 3085 | 2272 | 2679 | 562.2 |
| Jul | 3188 | 2271 | 2680 | 240.9 |
| Aug | 3494 | 2373 | 2883 | 110.5 |
| Sep | 3799 | 2475 | 3087 | 150.6 |
| Oct | 38100 | 2577 | 3188 | 230.9 |
| Nov | 3798 | 2577 | 3187 | 532.1 |
| Dec | 3494 | 2475 | 2985 | 963.8 |
| Year | 38100 | 2271 | 2882 | 1,51360 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 80% | 76% | 5.0 | 12:20 |
| Feb | 87% | 81% | 5.1 | 12:15 |
| Mar | 89% | 81% | 5.1 | 12:08 |
| Apr | 90% | 76% | 5.0 | 12:01 |
| May | 89% | 59% | 5.1 | 11:56 |
| Jun | 85% | 40% | 5.3 | 11:53 |
| Jul | 78% | 29% | 5.7 | 11:54 |
| Aug | 66% | 24% | 6.2 | 11:59 |
| Sep | 57% | 31% | 6.3 | 12:05 |
| Oct | 55% | 44% | 6.0 | 12:13 |
| Nov | 59% | 58% | 5.5 | 12:19 |
| Dec | 68% | 69% | 5.2 | 12:22 |
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 Bacabal is like
The warmest month is October, with an average high of 38 °C100 °F and a low of 25 °C77 °F. The coldest is June, when highs average 30 °C85 °F and lows 22 °C72 °F. Seasonal differences are small — just 5.2 °C9.5 °F between the warmest and the coolest month.
It is wet, with about 1,513 mm60 in of precipitation per year. The wettest three-month stretch is February–April, which brings 57% of the annual total. Months with less than 20 mm0.8 in on average: August and September. The wettest month is March (295 mm12 in), the driest is August (11 mm0.5 in).
Relative humidity ranges from 55% in October to 90% in April. The clearest skies (lowest average cloud amount, 24%) are typical of August. Average wind speed near the ground ranges from 2 km/h (1 mph) in April to 4 km/h (3 mph) in October.
Best time to visit Bacabal
Based on these averages, the most comfortable months for sightseeing and outdoor activities are June and July: average highs of 30 °C85 °F to 31 °C88 °F with 24 mm0.9 in to 56 mm2.2 in of precipitation per month.
The most challenging month is March, which is very wet (295 mm12 in) and humid (89% relative humidity).
Comfort score: months are ranked by how close they come to 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 Bacabal
- Wetter months (January–May) — highs 2985 to 31 °C88 °F, lows around 23 °C74 °F, about 247 mm9.7 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and a good rain jacket or umbrella and quick-drying shoes.
- Drier months (June–December) — highs 3085 to 38 °C100 °F, lows 2271 to 25 °C77 °F, about 40 mm1.6 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water.
How Bacabal compares
Compared with Codó, about 102 km to the east, Bacabal has practically the same average temperature and receives 10% more precipitation (1,513 mm60 in vs 1,381 mm54 in).
Of the 223 places in Brazil covered by World Climates, Bacabal is the 9th warmest by annual mean temperature and the 52nd wettest by annual precipitation. See all of them on the Brazil climate page.
Places in other countries with the most similar temperature and rainfall pattern (seasons shifted for the other hemisphere where needed): Ngã Bảy (Vietnam, Aw), Cần Thơ (Vietnam, Aw) and Long Xuyên (Vietnam, Aw).
Nearby places
- Codó 102 km · 28 °C82 °F · 1,381 mm54 in
- Caxias 173 km · 28 °C83 °F · 1,278 mm50 in
- São Luís 197 km · 27 °C81 °F · 1,717 mm68 in
- São José de Ribamar 203 km · 27 °C81 °F · 1,511 mm60 in
- Timon 236 km · 28 °C83 °F · 1,278 mm50 in
- Teresina 239 km · 29 °C83 °F · 1,201 mm47 in
- Açailândia 312 km · 27 °C80 °F · 1,392 mm55 in
- Paragominas 317 km · 27 °C80 °F · 1,799 mm71 in
Frequently asked questions
What is the warmest month in Bacabal?
October is the warmest month in Bacabal, with an average high of 38 °C (100 °F) and an average low of 25 °C (77 °F).
What is the coldest month in Bacabal?
June is the coldest month, with an average high of 30 °C (85 °F) and an average low of 22 °C (72 °F).
When does it rain the most in Bacabal?
March is the wettest month with about 295 mm (11.6 in) of precipitation; August is the driest with about 11 mm (0.5 in).
What is the best time to visit Bacabal?
Judging by long-term averages, the most comfortable months are June and July.
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 — most of all 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.