Mossoró climate
Mossoró (Rio Grande do Norte, Brazil) has a tropical savanna (dry winter) climate (Köppen Aw). The average temperature over the year is 28 °C83 °F, and about 708 mm28 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Mossoró climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin |
|---|---|---|---|---|
| Jan | 3392 | 2476 | 2984 | 903.5 |
| Feb | 3391 | 2476 | 2883 | 1134.5 |
| Mar | 3289 | 2475 | 2882 | 1285.0 |
| Apr | 3188 | 2475 | 2882 | 1636.4 |
| May | 3289 | 2374 | 2882 | 973.8 |
| Jun | 3290 | 2272 | 2781 | 552.2 |
| Jul | 3391 | 2271 | 2781 | 261.0 |
| Aug | 3494 | 2271 | 2883 | 80.3 |
| Sep | 3595 | 2272 | 2984 | 30.1 |
| Oct | 3596 | 2374 | 2985 | 40.2 |
| Nov | 3595 | 2475 | 2985 | 40.2 |
| Dec | 3494 | 2476 | 2985 | 150.6 |
| Year | 3596 | 2271 | 2883 | 70828 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 66% | 62% | 6.1 | 12:23 |
| Feb | 71% | 66% | 6.1 | 12:17 |
| Mar | 76% | 66% | 6.1 | 12:09 |
| Apr | 78% | 66% | 5.7 | 11:00 |
| May | 75% | 54% | 5.5 | 11:53 |
| Jun | 71% | 48% | 5.2 | 11:49 |
| Jul | 66% | 41% | 5.4 | 11:51 |
| Aug | 59% | 27% | 6.2 | 11:57 |
| Sep | 57% | 22% | 6.8 | 12:05 |
| Oct | 57% | 29% | 6.9 | 12:14 |
| Nov | 59% | 36% | 6.8 | 12:22 |
| Dec | 61% | 49% | 6.4 | 12:25 |
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 Mossoró is like
The warmest month is December, with an average high of 34 °C94 °F and a low of 24 °C76 °F. The coldest is June, when highs average 32 °C90 °F and lows 22 °C72 °F. Temperatures barely change through the year: the warmest and the coolest month differ by only 2.1 °C3.9 °F.
Annual precipitation is moderate at about 708 mm28 in. 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–December. The wettest month is April (163 mm6.4 in), the driest is September (3 mm0.1 in).
Relative humidity ranges from 57% in September to 78% in April. The clearest skies (lowest average cloud amount, 22%) are typical of September. Average wind speed near the ground ranges from 11 km/h (7 mph) in April to 21 km/h (13 mph) in October.
Best time to visit Mossoró
Based on these averages, the most comfortable months for sightseeing and outdoor activities are June and July: average highs of 32 °C90 °F to 33 °C91 °F with 26 mm1.0 in to 55 mm2.2 in of precipitation per month.
The most challenging month is April, which is hot, with average highs of 31 °C88 °F, very wet (163 mm6.4 in) and humid (78% 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 Mossoró
- Wetter months (January–May) — highs 3188 to 33 °C92 °F, lows 2374 to 24 °C76 °F, about 118 mm4.7 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water and an umbrella or light rain jacket.
- Drier months (June–December) — highs 3290 to 35 °C96 °F, lows 2271 to 24 °C76 °F, about 17 mm0.7 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water.
How Mossoró compares
Compared with Fortaleza, about 211 km to the northwest, Mossoró is on average 1.1 °C2 °F warmer and receives 35% less precipitation (708 mm28 in vs 1,082 mm43 in). The difference is largest in October (1.8 °C3.3 °F warmer).
Of the 223 places in Brazil covered by World Climates, Mossoró is the 2nd warmest by annual mean temperature and the 221st 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): Guayaquil (Ecuador, BSh), Daule (Ecuador, BSh) and Kralendijk (Bonaire, Saint Eustatius and Saba , BSh).
Nearby places
- Maracanaú 204 km · 27 °C81 °F · 1,088 mm43 in
- Fortaleza 211 km · 27 °C81 °F · 1,082 mm43 in
- São Gonçalo do Amarante 233 km · 27 °C81 °F · 974 mm38 in
- Natal 246 km · 27 °C80 °F · 1,169 mm46 in
- Campina Grande 279 km · 24 °C75 °F · 931 mm37 in
- Itapipoca 311 km · 27 °C81 °F · 950 mm37 in
- Juazeiro do Norte 313 km · 27 °C80 °F · 901 mm35 in
- Santa Cruz do Capibaribe 333 km · 25 °C76 °F · 772 mm30 in
Frequently asked questions
What is the warmest month in Mossoró?
December is the warmest month in Mossoró, with an average high of 34 °C (94 °F) and an average low of 24 °C (76 °F).
What is the coldest month in Mossoró?
June is the coldest month, with an average high of 32 °C (90 °F) and an average low of 22 °C (72 °F).
When does it rain the most in Mossoró?
April is the wettest month with about 163 mm (6.4 in) of precipitation; September is the driest with about 3 mm (0.1 in).
What is the best time to visit Mossoró?
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.