Climate Insights for Monterrey

Nuevo León, Mexico

Hottest
August
34°C peak94°F peak
Coldest
January
9°C low49°F low
Wettest
September
84 mm rain3.3 in rain
Best to Visit
February, March, April
Mild temps & low rain

Climate Overview

The climate in Monterrey is warm and mild. The average annual temperature is 22°C and approximately 525 mm of precipitation falls per year. September is the wettest month, receiving around 84 mm of rainfall. Monterrey is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, June. The coldest months are January, December, February, when temperatures can drop to 9°C.The climate in Monterrey is warm and mild. The average annual temperature is 72°F and approximately 20.7 in of precipitation falls per year. September is the wettest month, receiving around 3.3 in of rainfall. Monterrey is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, June. The coldest months are January, December, February, when temperatures can drop to 49°F.

Temperature

0°10°20°30°40°JanFebMarAprMayJunJulAugSepOctNovDecJanMax: 21°Average: 14°Min: 9°FebMax: 24°Average: 17°Min: 12°MarMax: 28°Average: 20°Min: 15°AprMax: 30°Average: 23°Min: 18°MayMax: 32°Average: 26°Min: 21°JunMax: 34°Average: 28°Min: 23°JulMax: 34°Average: 28°Min: 23°AugMax: 34°Average: 29°Min: 23°SepMax: 31°Average: 26°Min: 22°OctMax: 28°Average: 22°Min: 18°NovMax: 24°Average: 18°Min: 14°DecMax: 22°Average: 16°Min: 11°
Max
Average
Min
0°F10°F20°F30°F40°F50°F60°F70°F80°F90°F100°FJanFebMarAprMayJunJulAugSepOctNovDecJanMax: 69°FAverage: 57°FMin: 49°FFebMax: 76°FAverage: 63°FMin: 53°FMarMax: 82°FAverage: 69°FMin: 59°FAprMax: 85°FAverage: 74°FMin: 64°FMayMax: 90°FAverage: 79°FMin: 70°FJunMax: 92°FAverage: 82°FMin: 73°FJulMax: 93°FAverage: 82°FMin: 73°FAugMax: 94°FAverage: 83°FMin: 74°FSepMax: 88°FAverage: 79°FMin: 71°FOctMax: 83°FAverage: 72°FMin: 64°FNovMax: 76°FAverage: 65°FMin: 57°FDecMax: 72°FAverage: 60°FMin: 52°F
Max
Average
Min

Temperatures in Monterrey vary considerably across the year, with a 25°C difference between the coldest and warmest months. The warmest month is August, when average highs reach 34°C and the mean temperature sits around 29°C. January is the coolest month, with minimum temperatures around 9°C and an average of 14°C. On average, daily temperatures fluctuate by about 11°C between overnight lows and afternoon highs. The sharpest temperature change occurs between October and November, with a 4°C shift in average temperatures.Temperatures in Monterrey vary considerably across the year, with a 45°F difference between the coldest and warmest months. The warmest month is August, when average highs reach 94°F and the mean temperature sits around 83°F. January is the coolest month, with minimum temperatures around 49°F and an average of 57°F. On average, daily temperatures fluctuate by about 20°F between overnight lows and afternoon highs. The sharpest temperature change occurs between October and November, with a 7°F shift in average temperatures.

Precipitation

0mm25mm50mm75mm100mmJanFebMarAprMayJunJulAugSepOctNovDecJanPrecipitation: 29mmFebPrecipitation: 20mmMarPrecipitation: 37mmAprPrecipitation: 43mmMayPrecipitation: 58mmJunPrecipitation: 62mmJulPrecipitation: 49mmAugPrecipitation: 17mmSepPrecipitation: 84mmOctPrecipitation: 53mmNovPrecipitation: 44mmDecPrecipitation: 29mm
Precipitation
0in1in2in3in4inJanFebMarAprMayJunJulAugSepOctNovDecJanPrecipitation: 1.1inFebPrecipitation: 0.8inMarPrecipitation: 1.5inAprPrecipitation: 1.7inMayPrecipitation: 2.3inJunPrecipitation: 2.4inJulPrecipitation: 1.9inAugPrecipitation: 0.7inSepPrecipitation: 3.3inOctPrecipitation: 2.1inNovPrecipitation: 1.7inDecPrecipitation: 1.2in
Precipitation

Monterrey is a relatively dry area, receiving approximately 525 mm of precipitation annually, which averages out to around 44 mm per month. The wettest month is September, averaging 84 mm of rainfall. June and May also tend to see above-average precipitation. The driest month is August, with just 17 mm. That's 67 mm less than September, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.Monterrey is a relatively dry area, receiving approximately 20.7 in of precipitation annually, which averages out to around 1.7 in per month. The wettest month is September, averaging 3.3 in of rainfall. June and May also tend to see above-average precipitation. The driest month is August, with just 0.7 in. That's 2.6 in less than September, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.

Wind

0km/h5km/h10km/hJanFebMarAprMayJunJulAugSepOctNovDecJanWind Speed: 7km/hFebWind Speed: 7km/hMarWind Speed: 8km/hAprWind Speed: 8km/hMayWind Speed: 8km/hJunWind Speed: 9km/hJulWind Speed: 8km/hAugWind Speed: 8km/hSepWind Speed: 7km/hOctWind Speed: 7km/hNovWind Speed: 6km/hDecWind Speed: 6km/h
Wind Speed
0mph5mphJanFebMarAprMayJunJulAugSepOctNovDecJanWind Speed: 4mphFebWind Speed: 4mphMarWind Speed: 5mphAprWind Speed: 5mphMayWind Speed: 5mphJunWind Speed: 5mphJulWind Speed: 5mphAugWind Speed: 5mphSepWind Speed: 4mphOctWind Speed: 4mphNovWind Speed: 4mphDecWind Speed: 4mph
Wind Speed

Monterrey is relatively calm, with an average annual wind speed of 7km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is June, averaging 9km/h, though still comfortable for most outdoor activities. The calmest conditions occur in December, with average winds dropping to 6km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 3km/h between the calmest and windiest months.Monterrey is mildly breezy, with an average annual wind speed of 5mph. For context, sustained winds below 7mph are generally light, while anything above 16mph is considered strong. The windiest month is June, averaging 5mph, though still comfortable for most outdoor activities. The calmest conditions occur in December, with average winds dropping to 4mph, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 1mph between the calmest and windiest months.

Best Time to Visit

Jan14°57°F
Feb17°63°F
Mar20°69°F
Apr23°74°F
May26°79°F
Jun28°82°F
Jul28°82°F
Aug29°83°F
Sep26°79°F
Oct22°72°F
Nov18°65°F
Dec16°60°F

The best time to visit Monterrey is during February, March, April, October, November and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 20°C with modest rainfall averaging 38 mm per month. By contrast, August can be uncomfortably hot with highs reaching 34°C, while January is the coldest period with lows dropping to 9°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.The best time to visit Monterrey is during February, March, April, October, November and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 67°F with modest rainfall averaging 1.5 in per month. By contrast, August can be uncomfortably hot with highs reaching 94°F, while January is the coldest period with lows dropping to 49°F. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

Monthly Climate Data

The table below shows monthly climate averages for Monterrey based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.The table below shows monthly climate averages for Monterrey based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Fahrenheit (°F). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in miles per hour (mph). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.

Month
Min Temperature
Max Temperature
Wind Speed
Precipitation
Snow
Jan
9 °C49 °F
21 °C69 °F
7 km/h4 mph
29 mm1.1 in
0 cm0 in
Feb
12 °C53 °F
24 °C76 °F
7 km/h4 mph
20 mm0.8 in
0 cm0 in
Mar
15 °C59 °F
28 °C82 °F
8 km/h5 mph
37 mm1.5 in
0 cm0 in
Apr
18 °C64 °F
30 °C85 °F
8 km/h5 mph
43 mm1.7 in
0 cm0 in
May
21 °C70 °F
32 °C90 °F
8 km/h5 mph
58 mm2.3 in
0 cm0 in
Jun
23 °C73 °F
34 °C92 °F
9 km/h5 mph
62 mm2.4 in
0 cm0 in
Jul
23 °C73 °F
34 °C93 °F
8 km/h5 mph
49 mm1.9 in
0 cm0 in
Aug
23 °C74 °F
34 °C94 °F
8 km/h5 mph
17 mm0.7 in
0 cm0 in
Sep
22 °C71 °F
31 °C88 °F
7 km/h4 mph
84 mm3.3 in
0 cm0 in
OctCurrent
18 °C64 °F
28 °C83 °F
7 km/h4 mph
53 mm2.1 in
0 cm0 in
Nov
14 °C57 °F
24 °C76 °F
6 km/h4 mph
44 mm1.7 in
0 cm0 in
Dec
11 °C52 °F
22 °C72 °F
6 km/h4 mph
29 mm1.2 in
0 cm0 in