Climate Insights for Constitución Mexicana

Tres Valles, Estado de Oaxaca, Mexico

Hottest
May
34°C peak
Coldest
January
17°C low
Wettest
June
307mm rain
Best to Visit
January, February, March
Mild temps & low rain

Climate Overview

The climate in Constitución Mexicana is warm and mild. The average annual temperature is 25°C and approximately 1923mm of precipitation falls per year. Constitución Mexicana receives a notable amount of rainfall throughout the year, including during its driest month. Constitución Mexicana is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: May, April, June. The coldest months are January, February, December, when temperatures can drop to 17°C.

Temperature

10° 20° 30° 40° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: 25° Average: 20° Min: 17° Feb Max: 27° Average: 22° Min: 17° Mar Max: 30° Average: 24° Min: 19° Apr Max: 33° Average: 27° Min: 22° May Max: 34° Average: 28° Min: 23° Jun Max: 32° Average: 27° Min: 23° Jul Max: 30° Average: 26° Min: 22° Aug Max: 31° Average: 26° Min: 22° Sep Max: 30° Average: 26° Min: 22° Oct Max: 29° Average: 25° Min: 21° Nov Max: 27° Average: 23° Min: 19° Dec Max: 26° Average: 21° Min: 18°
Max
Average
Min

Constitución Mexicana sees moderate temperature variation throughout the year, ranging from 17°C to 34°C. The warmest month is May, when average highs reach 34°C and the mean temperature sits around 28°C. January is the coolest month, with minimum temperatures around 17°C and an average of 20°C. On average, daily temperatures fluctuate by about 9°C between overnight lows and afternoon highs. The sharpest temperature change occurs between March and April, with a 3°C shift in average temperatures.

Precipitation

0mm 50mm 100mm 150mm 200mm 250mm 300mm 350mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 85mm Feb Precipitation: 62mm Mar Precipitation: 43mm Apr Precipitation: 37mm May Precipitation: 87mm Jun Precipitation: 307mm Jul Precipitation: 266mm Aug Precipitation: 287mm Sep Precipitation: 277mm Oct Precipitation: 269mm Nov Precipitation: 122mm Dec Precipitation: 81mm
Precipitation

Constitución Mexicana is a fairly wet location, receiving approximately 1923mm of precipitation annually, which averages out to around 160mm per month. The wettest month is June, averaging 307mm of rainfall. August and September also tend to see above-average precipitation. The driest month is April, with just 37mm. That's 270mm less than June, 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/h 5km/h 10km/h 15km/h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Wind Speed: 14km/h Feb Wind Speed: 14km/h Mar Wind Speed: 14km/h Apr Wind Speed: 14km/h May Wind Speed: 13km/h Jun Wind Speed: 11km/h Jul Wind Speed: 12km/h Aug Wind Speed: 11km/h Sep Wind Speed: 11km/h Oct Wind Speed: 13km/h Nov Wind Speed: 14km/h Dec Wind Speed: 13km/h
Wind Speed

Constitución Mexicana is mildly breezy, with an average annual wind speed of 13km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is January, averaging 14km/h, though still comfortable for most outdoor activities. The calmest conditions occur in September, with average winds dropping to 11km/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. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 14km/h in winter, 14km/h in spring, 11km/h in summer, 13km/h in autumn.

Seasons

Winter
Dec 21
Spring
Mar 20
Summer
Jun 21
Autumn
Sep 23

88 days until Summer

It is currently spring in Constitución Mexicana, which began on March 20, 2026. Constitución Mexicana is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in May at around 34°C, while the coldest stretch bottoms out in January near 17°C. Summer is next, beginning on June 21, 2026 — 88 days from now.

Spring

Temperatures range from 19 to 34°C. Precipitation is moderate at around 166mm for the season, averaging 55mm per month. Winds are generally light, averaging 14km/h. Light layers work well as temperatures warm through the season — a great time to be outdoors.

Summer

Temperatures range from 22 to 32°C. Rainfall is heavy, totalling around 860mm across the season with a monthly average of 287mm. Winds are generally light, averaging 11km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.

Autumn

Temperatures range from 19 to 30°C. Rainfall is heavy, totalling around 668mm across the season with a monthly average of 223mm. Winds are generally light, averaging 13km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.

Winter

Temperatures range from 17 to 27°C. Precipitation is moderate at around 228mm for the season, averaging 76mm per month. Winds are generally light, averaging 14km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.

Best Time to Visit

Jan 20°
Feb 22°
Mar 24°
Apr 27°
May 28°
Jun 27°
Jul 26°
Aug 26°
Sep 26°
Oct 25°
Nov 23°
Dec 21°

The best time to visit Constitución Mexicana is during January, February, March and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 22°C with modest rainfall averaging 68mm per month. By contrast, May can be uncomfortably hot with temperatures reaching 34°C. 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 Constitución Mexicana 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.

Month
Min Temperature
Max Temperature
Wind Speed
Precipitation
Snow
Jan
17 °C
25 °C
14 km/h
85 mm
0 cm
Feb
17 °C
27 °C
14 km/h
62 mm
0 cm
Mar Current
19 °C
30 °C
14 km/h
43 mm
0 cm
Apr
22 °C
33 °C
14 km/h
37 mm
0 cm
May
23 °C
34 °C
13 km/h
87 mm
0 cm
Jun
23 °C
32 °C
11 km/h
307 mm
0 cm
Jul
22 °C
30 °C
12 km/h
266 mm
0 cm
Aug
22 °C
31 °C
11 km/h
287 mm
0 cm
Sep
22 °C
30 °C
11 km/h
277 mm
0 cm
Oct
21 °C
29 °C
13 km/h
269 mm
0 cm
Nov
19 °C
27 °C
14 km/h
122 mm
0 cm
Dec
18 °C
26 °C
13 km/h
81 mm
0 cm
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Metric (°C, km/h)