Assis climate

São Paulo, Brazil · 22.66°S, 50.41°W · elevation 546 m · population 104,858

Warmest month
December
high 30 °C86 °F
Coldest month
July
low 12 °C53 °F
Wettest month
January
225 mm8.9 in
Best time to visit
April–August
by our comfort score
Annual precipitation
1,321 mm52 in
August driest
Year average
22 °C72 °F
tropical savanna (dry winter) (Aw)

Assis (São Paulo, Brazil) has a tropical savanna (dry winter) climate (Köppen Aw). The average temperature over the year is 22 °C72 °F, and about 1,321 mm52 in of precipitation falls in an average year.

Temperature by month

Average highAverage low
10°15°20°25°30°35°50°60°70°80°90°JFMAMJJASOND31°87°12°53°January: high 29 °C / 84 °F, low 20 °C / 69 °FFebruary: high 29 °C / 84 °F, low 20 °C / 68 °FMarch: high 29 °C / 84 °F, low 19 °C / 67 °FApril: high 28 °C / 83 °F, low 17 °C / 63 °FMay: high 25 °C / 77 °F, low 14 °C / 57 °FJune: high 24 °C / 75 °F, low 12 °C / 54 °FJuly: high 25 °C / 76 °F, low 12 °C / 53 °FAugust: high 27 °C / 81 °F, low 13 °C / 55 °FSeptember: high 30 °C / 86 °F, low 15 °C / 59 °FOctober: high 31 °C / 87 °F, low 18 °C / 64 °FNovember: high 30 °C / 87 °F, low 19 °C / 66 °FDecember: high 30 °C / 86 °F, low 20 °C / 68 °F

Precipitation by month

Precipitation per month (mminches)
05010015020025002468JJanuary: 225 mm / 8.9 inFFebruary: 165 mm / 6.5 inMMarch: 110 mm / 4.3 inAApril: 69 mm / 2.7 inMMay: 94 mm / 3.7 inJJune: 53 mm / 2.1 inJJuly: 51 mm / 2.0 inAAugust: 44 mm / 1.7 inSSeptember: 76 mm / 3.0 inOOctober: 130 mm / 5.1 inNNovember: 131 mm / 5.2 inDDecember: 173 mm / 6.8 in2258.9

Assis climate table

Monthly averages, 2001–2025
MonthHigh °C°FLow °C°FMean °C°FPrecip. mmin
Jan2984206925762258.9
Feb2984206825761656.5
Mar2984196724751104.3
Apr288317632373692.7
May257714571967943.7
Jun247512541865532.1
Jul257612531865512.0
Aug278113552068441.7
Sep308615592373763.0
Oct3187186424761305.1
Nov3087196625761315.2
Dec3086206825771736.8
Year3187125322721,32152

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

Humidity, cloud, sun and daylight
MonthHumid.CloudSolarDaylight
Jan80%72%5.913:23
Feb79%64%5.912:53
Mar78%54%5.612:17
Apr75%42%5.011:36
May76%46%4.011:02
Jun76%40%3.710:45
Jul71%37%4.010:52
Aug63%33%4.811:20
Sep61%42%5.211:00
Oct66%61%5.712:40
Nov69%62%6.213:14
Dec74%67%6.213:31

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 Assis is like

The warmest month is December, with an average high of 30 °C86 °F and a low of 20 °C68 °F. The coldest is July, when highs average 25 °C76 °F and lows 12 °C53 °F. Seasonal differences are small — just 6.9 °C12.5 °F between the warmest and the coolest month.

It is wet, with about 1,321 mm52 in of precipitation per year. The wettest three-month stretch is December–February, which brings 43% of the annual total. The wettest month is January (225 mm8.9 in), the driest is August (44 mm1.7 in).

Relative humidity ranges from 61% in September to 80% in January. The clearest skies (lowest average cloud amount, 33%) are typical of August. Average wind speed near the ground ranges from 7 km/h (4 mph) in February to 10 km/h (6 mph) in September. Daylight lasts from about 10.8 hours in June to 13.5 hours in December.

Best time to visit Assis

Based on these averages, the most comfortable months for sightseeing and outdoor activities are April–August: average highs of 24 °C75 °F to 28 °C83 °F with 44 mm1.7 in to 94 mm3.7 in of precipitation per month.

The most challenging month is January, which is very wet (225 mm8.9 in) and humid (80% 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 Assis

  • Wetter months (October–February) — highs 2984 to 31 °C87 °F, lows 1864 to 20 °C69 °F, about 165 mm6.5 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and an umbrella or light rain jacket.
  • Drier months (March–September) — highs 2475 to 30 °C86 °F, lows 1253 to 19 °C67 °F, about 71 mm2.8 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and an extra layer for the cooler mornings and evenings.

How Assis compares

Compared with Marília, about 69 km to the northeast, Assis is on average 0.6 °C1 °F warmer and receives 6% more precipitation (1,321 mm52 in vs 1,247 mm49 in). The difference is largest in April (0.8 °C1.4 °F warmer).

Of the 223 places in Brazil covered by World Climates, Assis is the 138th warmest by annual mean temperature and the 106th 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: Sunshine Coast (Australia, Cfa), Brisbane (Australia, Cfa) and Ciudad del Este (Paraguay, Cfa).

Nearby places

  • Ourinhos 66 km · 22 °C72 °F · 1,327 mm52 in
  • Marília 69 km · 22 °C71 °F · 1,247 mm49 in
  • Londrina 105 km · 21 °C70 °F · 1,518 mm60 in
  • Presidente Prudente 117 km · 23 °C74 °F · 1,297 mm51 in
  • Bauru 144 km · 22 °C72 °F · 1,208 mm48 in
  • Birigui 153 km · 24 °C75 °F · 1,202 mm47 in
  • Araçatuba 162 km · 24 °C76 °F · 1,211 mm48 in
  • Maringá 178 km · 22 °C71 °F · 1,531 mm60 in

All places in Brazil

Frequently asked questions

What is the warmest month in Assis?

December is the warmest month in Assis, with an average high of 30 °C (86 °F) and an average low of 20 °C (68 °F).

What is the coldest month in Assis?

July is the coldest month, with an average high of 25 °C (76 °F) and an average low of 12 °C (53 °F).

When does it rain the most in Assis?

January is the wettest month with about 225 mm (8.9 in) of precipitation; August is the driest with about 44 mm (1.7 in).

What is the best time to visit Assis?

Judging by long-term averages, the most comfortable months are April–August.

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.

The grid cell’s average elevation is 466 m, while Assis lies at about 546 m. Temperatures on this page were therefore adjusted by −0.5 °C0.9 °F using the standard lapse rate of 6.5 °C per 1,000 m.

Sources and method