Irapuato climate

Guanajuato, Mexico · 20.67°N, 101.36°W · elevation 1,751 m · population 380,941

Warmest month
May
high 32 °C90 °F
Coldest month
January
low 7 °C44 °F
Wettest month
July
178 mm7.0 in
Best time to visit
October–March
by our comfort score
Annual precipitation
722 mm28 in
April driest
Year average
19 °C67 °F
hot-summer Mediterranean (Csa)

Irapuato (Guanajuato, Mexico) has a hot-summer Mediterranean climate (Köppen Csa). The average temperature over the year is 19 °C67 °F, and about 722 mm28 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°JFMAMJJASOND32°90°7°44°January: high 23 °C / 74 °F, low 7 °C / 44 °FFebruary: high 26 °C / 79 °F, low 8 °C / 47 °FMarch: high 29 °C / 84 °F, low 10 °C / 50 °FApril: high 32 °C / 90 °F, low 13 °C / 56 °FMay: high 32 °C / 90 °F, low 16 °C / 60 °FJune: high 30 °C / 85 °F, low 16 °C / 60 °FJuly: high 26 °C / 79 °F, low 15 °C / 58 °FAugust: high 26 °C / 79 °F, low 14 °C / 57 °FSeptember: high 25 °C / 78 °F, low 13 °C / 56 °FOctober: high 25 °C / 78 °F, low 12 °C / 53 °FNovember: high 24 °C / 75 °F, low 9 °C / 48 °FDecember: high 23 °C / 74 °F, low 7 °C / 45 °F

Precipitation by month

Precipitation per month (mminches)
0501001502000246JJanuary: 10 mm / 0.4 inFFebruary: 16 mm / 0.6 inMMarch: 13 mm / 0.5 inAApril: 5 mm / 0.2 inMMay: 36 mm / 1.4 inJJune: 125 mm / 4.9 inJJuly: 178 mm / 7.0 inAAugust: 150 mm / 5.9 inSSeptember: 128 mm / 5.0 inOOctober: 42 mm / 1.7 inNNovember: 13 mm / 0.5 inDDecember: 6 mm / 0.2 in1787.0

Irapuato climate table

Monthly averages, 2001–2025
MonthHigh °C°FLow °C°FMean °C°FPrecip. mmin
Jan23747441559100.4
Feb26798471763160.6
Mar298410502067130.5
Apr32901356237350.2
May329016602475361.4
Jun3085166023731254.9
Jul2679155820691787.0
Aug2679145720681505.9
Sep2578135619671285.0
Oct257812531865421.7
Nov24759481662130.5
Dec2374745156060.2
Year3290744196772228

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

Humidity, cloud, sun and daylight
MonthHumid.CloudSolarDaylight
Jan55%36%4.911:00
Feb49%30%5.811:26
Mar41%27%6.811:59
Apr35%31%7.312:36
May41%41%7.113:07
Jun58%60%6.513:23
Jul72%69%6.313:16
Aug75%64%6.312:50
Sep77%65%5.712:14
Oct70%44%5.511:38
Nov65%30%5.111:07
Dec58%33%4.710:53

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 Irapuato is like

The warmest month is May, with an average high of 32 °C90 °F and a low of 16 °C60 °F. The coldest is January, when highs average 23 °C74 °F and lows 7 °C44 °F. There is a clear seasonal cycle, with 8.9 °C16.1 °F between the average temperature of the warmest and the coolest month.

Annual precipitation is moderate at about 722 mm28 in. The wettest three-month stretch is July–September, which brings 63% of the annual total. Months with less than 20 mm0.8 in on average: November–April. The wettest month is July (178 mm7.0 in), the driest is April (5 mm0.2 in).

Relative humidity ranges from 35% in April to 77% in September. The clearest skies (lowest average cloud amount, 27%) are typical of March. Average wind speed near the ground ranges from 6 km/h (4 mph) in July to 7 km/h (5 mph) in April. Daylight lasts from about 10.9 hours in December to 13.4 hours in June.

Best time to visit Irapuato

Based on these averages, the most comfortable months for sightseeing and outdoor activities are October–March: average highs of 23 °C74 °F to 29 °C84 °F with 6 mm0.2 in to 42 mm1.7 in of precipitation per month.

The most challenging month is July, which is very wet (178 mm7.0 in).

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 Irapuato

  • Wetter months (June–September) — highs 2578 to 30 °C85 °F, lows 1356 to 16 °C60 °F, about 146 mm5.7 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses, an extra layer for the cooler mornings and evenings and an umbrella or light rain jacket.
  • Drier months (October–May) — highs 2374 to 32 °C90 °F, lows 744 to 16 °C60 °F, about 17 mm0.7 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 Irapuato compares

Compared with León de los Aldama, about 61 km to the northwest, Irapuato is on average 0.5 °C0.8 °F warmer and receives 6% more precipitation (722 mm28 in vs 683 mm27 in). The difference is largest in April (1.3 °C2.4 °F warmer).

Of the 96 places in Mexico covered by World Climates, Irapuato is the 63rd warmest by annual mean temperature and the 53rd wettest by annual precipitation. See all of them on the Mexico climate page.

Places in other countries with the most similar temperature and rainfall pattern (seasons shifted for the other hemisphere where needed): Lichinga (Mozambique, Csa), Mzuzu (Malawi, Csa) and Blantyre (Malawi, Csa).

The same NASA POWER grid cell also contains Salamanca (pop. 160,682). Their long-term averages in this dataset are essentially the same as for Irapuato, so they do not have separate pages.

Nearby places

All places in Mexico

Frequently asked questions

What is the warmest month in Irapuato?

May is the warmest month in Irapuato, with an average high of 32 °C (90 °F) and an average low of 16 °C (60 °F).

What is the coldest month in Irapuato?

January is the coldest month, with an average high of 23 °C (74 °F) and an average low of 7 °C (44 °F).

When does it rain the most in Irapuato?

July is the wettest month with about 178 mm (7.0 in) of precipitation; April is the driest with about 5 mm (0.2 in).

What is the best time to visit Irapuato?

Judging by long-term averages, the most comfortable months are October–March.

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 1,864 m, while Irapuato lies at about 1,751 m. Temperatures on this page were therefore adjusted by +0.7 °C1.3 °F using the standard lapse rate of 6.5 °C per 1,000 m.

Sources and method