Monterrey climate
Monterrey (Nuevo León, Mexico) has a hot semi-arid climate (Köppen BSh). The average temperature over the year is 24 °C76 °F, and about 530 mm21 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Monterrey climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin |
|---|---|---|---|---|
| Jan | 2577 | 1050 | 1864 | 170.7 |
| Feb | 2883 | 1254 | 2068 | 150.6 |
| Mar | 3188 | 1558 | 2373 | 230.9 |
| Apr | 3595 | 1865 | 2780 | 230.9 |
| May | 3698 | 2170 | 2984 | 441.7 |
| Jun | 3798 | 2272 | 2985 | 552.2 |
| Jul | 3596 | 2272 | 2984 | 863.4 |
| Aug | 3596 | 2272 | 2984 | 582.3 |
| Sep | 3290 | 2170 | 2780 | 1325.2 |
| Oct | 3188 | 1864 | 2476 | 431.7 |
| Nov | 2882 | 1457 | 2169 | 200.8 |
| Dec | 2679 | 1152 | 1865 | 140.6 |
| Year | 3798 | 1050 | 2476 | 53021 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 57% | 48% | 4.0 | 10:42 |
| Feb | 51% | 45% | 4.9 | 11:15 |
| Mar | 48% | 45% | 5.7 | 11:57 |
| Apr | 45% | 47% | 6.4 | 12:44 |
| May | 54% | 46% | 6.5 | 13:23 |
| Jun | 60% | 42% | 6.8 | 13:44 |
| Jul | 64% | 47% | 6.4 | 13:36 |
| Aug | 64% | 41% | 6.4 | 13:02 |
| Sep | 73% | 52% | 5.2 | 12:16 |
| Oct | 69% | 37% | 5.0 | 11:30 |
| Nov | 64% | 38% | 4.2 | 10:51 |
| Dec | 57% | 44% | 3.8 | 10:32 |
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 Monterrey is like
The warmest month is June, with an average high of 37 °C98 °F and a low of 22 °C72 °F. The coldest is January, when highs average 25 °C77 °F and lows 10 °C50 °F. There is a clear seasonal cycle, with 11.9 °C21.3 °F between the average temperature of the warmest and the coolest month.
Annual precipitation is moderate at about 530 mm21 in. The wettest three-month stretch is July–September, which brings 52% of the annual total. Months with less than 20 mm0.8 in on average: November–February. The wettest month is September (132 mm5.2 in), the driest is December (14 mm0.6 in).
Relative humidity ranges from 45% in April to 73% in September. The clearest skies (lowest average cloud amount, 37%) are typical of October. Average wind speed near the ground ranges from 7 km/h (4 mph) in November to 10 km/h (6 mph) in June. Daylight lasts from about 10.5 hours in December to 13.7 hours in June.
Best time to visit Monterrey
Based on these averages, the most comfortable months for sightseeing and outdoor activities are November–February: average highs of 25 °C77 °F to 28 °C83 °F with 14 mm0.6 in to 20 mm0.8 in of precipitation per month.
The most challenging month is July, which is hot, with average highs of 35 °C96 °F.
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 Monterrey
- Winter (December–February) — highs 2577 to 28 °C83 °F, lows 1050 to 12 °C54 °F, about 15 mm0.6 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.
- Spring (March–May) — highs 3188 to 36 °C98 °F, lows 1558 to 21 °C70 °F, about 30 mm1.2 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water.
- Summer (June–August) — highs 3596 to 37 °C98 °F, lows around 22 °C72 °F, about 66 mm2.6 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water.
- Autumn (September–November) — highs 2882 to 32 °C90 °F, lows 1457 to 21 °C70 °F, about 65 mm2.6 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water and an extra layer for the cooler mornings and evenings.
How Monterrey compares
Of the 96 places in Mexico covered by World Climates, Monterrey is the 38th warmest by annual mean temperature and the 68th 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): Ressano Garcia (Mozambique, BSh), Townsville (Australia, Aw) and Lashio (Myanmar, BSh).
The same NASA POWER grid cell also contains Santa Catarina (pop. 304,052) and San Pedro Garza García (pop. 132,128). Their long-term averages in this dataset are essentially the same as for Monterrey, so they do not have separate pages.
Nearby places
- Guadalupe 6 km · 23 °C74 °F · 709 mm28 in
- Ciudad General Escobedo 12 km · 24 °C75 °F · 504 mm20 in
- Ciudad Apodaca 17 km · 23 °C74 °F · 636 mm25 in
- Saltillo 72 km · 19 °C66 °F · 371 mm15 in
- Monclova 175 km · 23 °C73 °F · 398 mm16 in
- Reynosa 208 km · 24 °C76 °F · 605 mm24 in
- Nuevo Laredo 215 km · 24 °C74 °F · 559 mm22 in
- Ciudad Victoria 247 km · 25 °C77 °F · 814 mm32 in
Frequently asked questions
What is the warmest month in Monterrey?
June is the warmest month in Monterrey, with an average high of 37 °C (98 °F) and an average low of 22 °C (72 °F).
What is the coldest month in Monterrey?
January is the coldest month, with an average high of 25 °C (77 °F) and an average low of 10 °C (50 °F).
When does it rain the most in Monterrey?
September is the wettest month with about 132 mm (5.2 in) of precipitation; December is the driest with about 14 mm (0.6 in).
What is the best time to visit Monterrey?
Judging by long-term averages, the most comfortable months are November–February.
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 1,627 m, while Monterrey lies at about 560 m. Temperatures on this page were therefore adjusted by +6.9 °C12.5 °F using the standard lapse rate of 6.5 °C per 1,000 m.