Coatzacoalcos climate

Veracruz, Mexico · 18.15°N, 94.44°W · elevation 11 m · population 310,698

Warmest month
May
high 34 °C92 °F
Coldest month
January
low 19 °C66 °F
Wettest month
October
402 mm16 in
Best time to visit
February and March
by our comfort score
Annual precipitation
2,290 mm90 in
April driest
Year average
26 °C78 °F
tropical monsoon (Am)

Coatzacoalcos (Veracruz, Mexico) has a tropical monsoon climate (Köppen Am). The average temperature over the year is 26 °C78 °F, and about 2,290 mm90 in of precipitation falls in an average year.

Temperature by month

Average highAverage low
15°20°25°30°35°60°70°80°90°JFMAMJJASOND34°92°19°66°January: high 25 °C / 76 °F, low 19 °C / 66 °FFebruary: high 26 °C / 79 °F, low 19 °C / 67 °FMarch: high 28 °C / 83 °F, low 20 °C / 69 °FApril: high 32 °C / 90 °F, low 23 °C / 73 °FMay: high 34 °C / 92 °F, low 25 °C / 76 °FJune: high 31 °C / 89 °F, low 25 °C / 77 °FJuly: high 30 °C / 86 °F, low 25 °C / 77 °FAugust: high 30 °C / 86 °F, low 25 °C / 77 °FSeptember: high 29 °C / 85 °F, low 25 °C / 77 °FOctober: high 28 °C / 83 °F, low 24 °C / 75 °FNovember: high 27 °C / 80 °F, low 22 °C / 71 °FDecember: high 26 °C / 78 °F, low 20 °C / 68 °F

Precipitation by month

Precipitation per month (mminches)
01002003004005000481216JJanuary: 119 mm / 4.7 inFFebruary: 63 mm / 2.5 inMMarch: 52 mm / 2.0 inAApril: 32 mm / 1.2 inMMay: 99 mm / 3.9 inJJune: 234 mm / 9.2 inJJuly: 240 mm / 9.5 inAAugust: 303 mm / 11.9 inSSeptember: 384 mm / 15.1 inOOctober: 402 mm / 15.8 inNNovember: 239 mm / 9.4 inDDecember: 125 mm / 4.9 in40215.8

Coatzacoalcos climate table

Monthly averages, 2001–2025
MonthHigh °C°FLow °C°FMean °C°FPrecip. mmin
Jan2576196622711194.7
Feb267919672373632.5
Mar288320692476522.0
Apr329023732781321.2
May349225762984993.9
Jun3189257728832349.2
Jul3086257728822409.5
Aug30862577278130312
Sep29852577278138415
Oct28832475267940216
Nov2780227124752399.4
Dec2678206823731254.9
Year3492196626782,29090

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

Humidity, cloud, sun and daylight
MonthHumid.CloudSolarDaylight
Jan88%64%3.411:09
Feb87%55%4.211:32
Mar81%46%5.311:00
Apr73%44%5.912:32
May71%55%5.912:59
Jun80%70%5.713:13
Jul85%73%5.913:07
Aug86%74%5.612:44
Sep87%77%4.812:13
Oct87%68%4.311:42
Nov87%61%3.711:15
Dec88%61%3.411:03

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 Coatzacoalcos is like

The warmest month is May, with an average high of 34 °C92 °F and a low of 25 °C76 °F. The coldest is January, when highs average 25 °C76 °F and lows 19 °C66 °F. Seasonal differences are small — just 7.2 °C13 °F between the warmest and the coolest month.

It is very wet, receiving about 2,290 mm90 in of precipitation per year. The wettest three-month stretch is August–October, which brings 48% of the annual total. The wettest month is October (402 mm16 in), the driest is April (32 mm1.2 in).

Relative humidity ranges from 71% in May to 88% in December. The clearest skies (lowest average cloud amount, 44%) are typical of April. Average wind speed near the ground ranges from 8 km/h (5 mph) in September to 11 km/h (7 mph) in January. Daylight lasts from about 11.0 hours in December to 13.2 hours in June.

Best time to visit Coatzacoalcos

Based on these averages, the most comfortable months for sightseeing and outdoor activities are February and March: average highs of 26 °C79 °F to 28 °C83 °F with 52 mm2.0 in to 63 mm2.5 in of precipitation per month.

The most challenging month is September, which is very wet (384 mm15 in) and humid (87% 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 Coatzacoalcos

  • Wetter months (June–November) — highs 2780 to 31 °C89 °F, lows 2271 to 25 °C77 °F, about 300 mm12 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and a good rain jacket or umbrella and quick-drying shoes.
  • Drier months (December–May) — highs 2576 to 34 °C92 °F, lows 1966 to 25 °C76 °F, about 81 mm3.2 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses.

How Coatzacoalcos compares

Compared with Villahermosa, about 160 km to the east, Coatzacoalcos has practically the same average temperature and receives 5% more precipitation (2,290 mm90 in vs 2,172 mm85 in). The difference is largest in April (0.8 °C1.4 °F cooler).

Of the 96 places in Mexico covered by World Climates, Coatzacoalcos is the 20th warmest by annual mean temperature and the 2nd 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: Belmopan (Belize, As), Tabuk (Philippines, Am) and Puerto Barrios (Guatemala, Am).

The same NASA POWER grid cell also contains Minatitlán (pop. 112,046). Their long-term averages in this dataset are essentially the same as for Coatzacoalcos, so they do not have separate pages.

Nearby places

All places in Mexico

Frequently asked questions

What is the warmest month in Coatzacoalcos?

May is the warmest month in Coatzacoalcos, with an average high of 34 °C (92 °F) and an average low of 25 °C (76 °F).

What is the coldest month in Coatzacoalcos?

January is the coldest month, with an average high of 25 °C (76 °F) and an average low of 19 °C (66 °F).

When does it rain the most in Coatzacoalcos?

October is the wettest month with about 402 mm (15.8 in) of precipitation; April is the driest with about 32 mm (1.2 in).

What is the best time to visit Coatzacoalcos?

Judging by long-term averages, the most comfortable months are February and 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 63 m, while Coatzacoalcos lies at about 11 m. Temperatures on this page were therefore adjusted by +0.3 °C0.6 °F using the standard lapse rate of 6.5 °C per 1,000 m.

Sources and method