Pelotas climate

Rio Grande do Sul, Brazil · 31.77°S, 52.34°W · elevation 15 m · population 336,150

Warmest month
January
high 29 °C84 °F
Coldest month
July
low 8 °C47 °F
Wettest month
September
134 mm5.3 in
Best time to visit
April and November and December
by our comfort score
Annual precipitation
1,343 mm53 in
December driest
Year average
18 °C65 °F
humid subtropical (Cfa)

Pelotas (Rio Grande do Sul, Brazil) has a humid subtropical climate (Köppen Cfa). The average temperature over the year is 18 °C65 °F, and about 1,343 mm53 in of precipitation falls in an average year.

Temperature by month

Average highAverage low
5°10°15°20°25°30°35°50°60°70°80°90°JFMAMJJASOND29°84°8°47°January: high 29 °C / 84 °F, low 19 °C / 67 °FFebruary: high 29 °C / 84 °F, low 20 °C / 67 °FMarch: high 27 °C / 81 °F, low 18 °C / 65 °FApril: high 24 °C / 75 °F, low 15 °C / 59 °FMay: high 20 °C / 68 °F, low 12 °C / 54 °FJune: high 17 °C / 63 °F, low 9 °C / 49 °FJuly: high 16 °C / 62 °F, low 8 °C / 47 °FAugust: high 18 °C / 64 °F, low 9 °C / 49 °FSeptember: high 19 °C / 67 °F, low 11 °C / 51 °FOctober: high 22 °C / 72 °F, low 13 °C / 56 °FNovember: high 25 °C / 76 °F, low 15 °C / 59 °FDecember: high 27 °C / 81 °F, low 17 °C / 63 °F

Precipitation by month

Precipitation per month (mminches)
050100150024JJanuary: 109 mm / 4.3 inFFebruary: 120 mm / 4.7 inMMarch: 113 mm / 4.4 inAApril: 115 mm / 4.5 inMMay: 116 mm / 4.6 inJJune: 106 mm / 4.2 inJJuly: 101 mm / 4.0 inAAugust: 115 mm / 4.5 inSSeptember: 134 mm / 5.3 inOOctober: 128 mm / 5.0 inNNovember: 94 mm / 3.7 inDDecember: 93 mm / 3.7 in1345.3

Pelotas climate table

Monthly averages, 2001–2025
MonthHigh °C°FLow °C°FMean °C°FPrecip. mmin
Jan2984196724761094.3
Feb2984206724761204.7
Mar2781186523731134.4
Apr2475155920671154.5
May2068125416611164.6
Jun176394913561064.2
Jul166284712541014.0
Aug186494914571154.5
Sep1967115115591345.3
Oct2272135618641285.0
Nov257615592068943.7
Dec278117632272933.7
Year298484718651,34353

“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.

Humidity, cloud, sun and daylight
MonthHumid.CloudSolarDaylight
Jan73%56%6.514:00
Feb74%55%5.913:15
Mar76%54%4.912:22
Apr78%52%3.811:21
May84%59%2.810:31
Jun86%60%2.410:05
Jul86%57%2.610:16
Aug86%56%3.210:58
Sep84%62%3.911:57
Oct82%61%5.012:56
Nov77%53%6.313:48
Dec73%54%6.714:13

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 Pelotas is like

The warmest month is January, with an average high of 29 °C84 °F and a low of 19 °C67 °F. The coldest is July, when highs average 16 °C62 °F and lows 8 °C47 °F. There is a clear seasonal cycle, with 11.9 °C21.4 °F between the average temperature of the warmest and the coolest month.

It is wet, with about 1,343 mm53 in of precipitation per year. Rain is spread fairly evenly through the year. The wettest month is September (134 mm5.3 in), the driest is December (93 mm3.7 in).

Relative humidity ranges from 73% in January to 86% in July. The clearest skies (lowest average cloud amount, 52%) are typical of April. Average wind speed near the ground ranges from 9 km/h (5 mph) in June to 11 km/h (7 mph) in November. Daylight lasts from about 10.1 hours in June to 14.2 hours in December.

Best time to visit Pelotas

Based on these averages, the most comfortable months for sightseeing and outdoor activities are April and November and December: average highs of 24 °C75 °F to 27 °C81 °F with 93 mm3.7 in to 115 mm4.5 in of precipitation per month.

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 Pelotas

  • Summer (December–February) — highs 2781 to 29 °C84 °F, lows 1763 to 20 °C67 °F, about 107 mm4.2 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and an umbrella or light rain jacket.
  • Autumn (March–May) — highs 2068 to 27 °C81 °F, lows 1254 to 18 °C65 °F, about 115 mm4.5 in of precipitation a month. Pack light layers — T-shirts plus a light sweater or jacket and an umbrella or light rain jacket.
  • Winter (June–August) — highs 1662 to 18 °C64 °F, lows 847 to 9 °C49 °F, about 107 mm4.2 in of precipitation a month. Pack long sleeves, a sweater and a medium jacket and an umbrella or light rain jacket.
  • Spring (September–November) — highs 1967 to 25 °C76 °F, lows 1151 to 15 °C59 °F, about 119 mm4.7 in of precipitation a month. Pack light layers — T-shirts plus a light sweater or jacket and an umbrella or light rain jacket.

How Pelotas compares

Compared with Porto Alegre, about 220 km to the northeast, Pelotas is on average 0.9 °C1.6 °F cooler and receives 7% less precipitation (1,343 mm53 in vs 1,446 mm57 in). The difference is largest in September (1.6 °C2.8 °F cooler).

Of the 223 places in Brazil covered by World Climates, Pelotas is the 215th warmest by annual mean temperature and the 98th 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: Buenos Aires (Argentina, Cfa), Nowra (Australia, Cfa) and Salto (Uruguay, Cfa).

Nearby places

  • Rio Grande 37 km · 19 °C66 °F · 1,327 mm52 in
  • Bagé 174 km · 17 °C63 °F · 1,481 mm58 in
  • Porto Alegre 220 km · 19 °C67 °F · 1,446 mm57 in
  • Santa Cruz do Sul 228 km · 20 °C68 °F · 1,590 mm63 in
  • Canoas 234 km · 19 °C67 °F · 1,446 mm57 in
  • Gravataí 241 km · 19 °C67 °F · 1,446 mm57 in
  • Novo Hamburgo 260 km · 20 °C68 °F · 1,574 mm62 in
  • Santa Maria 271 km · 19 °C67 °F · 1,692 mm67 in

All places in Brazil

Frequently asked questions

What is the warmest month in Pelotas?

January is the warmest month in Pelotas, with an average high of 29 °C (84 °F) and an average low of 19 °C (67 °F).

What is the coldest month in Pelotas?

July is the coldest month, with an average high of 16 °C (62 °F) and an average low of 8 °C (47 °F).

When does it rain the most in Pelotas?

September is the wettest month with about 134 mm (5.3 in) of precipitation; December is the driest with about 93 mm (3.7 in).

What is the best time to visit Pelotas?

Judging by long-term averages, the most comfortable months are April and November and December.

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.

Sources and method