Catemaco and  Los Tuxtlas weather is extrapolated from the Minatitlan or Veracruz airport stations more
than 80 miles away.

Temperatures are fairly uniform in Los Tuxtlas, and best described as often hot and frequently humid.
Nights are generally balmy.

As for  "generally",  a low temperature of 69 degrees F during the winter may not sound cold to you, but
combine that with a little north wind and any southerner will freeze off his proverbial donkey.

Temperatures drop a little more than 2 degrees for every 656 feet of altitude and historically snow has
been seen on the Tuxtlas´s highest volcano.

Temperatures per month:        Rainfall per month:
Average       76f              Average:       7 inches
Avg. Highest  84f            Avg. Jun-Oct    11 inches
Avg. Lowest   69f             Avg. Nov-May    2 inches

The hottest month is May, averaging 91f high temperatures, with January being the coolest, averaging 63f
low temperatures. Generally the swing between high and low is 8-14 degrees, although an incoming north
wind can change that by more than 15 degrees within minutes.

Rainfall is highly variable because of terrain features.  Within a mile, rain total may differ 200%.

Catemaco happens to be one of the drier and cooler places in Los Tuxtlas.

The wet season extends from mid June to December, with most rain occurring July to October.
Fairly dry months are expected January through May, with April & May the driest.

Windy season runs September to May, when North winds
(nortes) can occasionally gust to 100 km/hr,
interchanging with
suradas, (South winds), occasionally gusting at equal speeds from February to May.

Brushes with hurricanes or tropical storms are a rarity. The first hurricane to affect Los Tuxtlas in 36
years made land fall near the Catemaco coast in October 2005. The last volcano erupted in 1793.

So when is a good time to visit?
Anytime! The weather is rarely nasty more than a few days.
Los Tuxtlas Weather
CATEMACO
              CATEMACO
COYAME
  Avg
Temp
Avg HI
Temp
Avg LO
Temp
Avg
Rainy
Days
Avg
Thunder
Storms
Avg
Foggy
Days
  Avg
Rain
mm
Avg
Rain
mm
  media
alto
bajo
lluvia
tormentas
neblina
  lluvia media
lluvia media
Jan
19.6
23.8
15.4
6.3
.2
3.4
  62.4
293.8
Feb
20.5
25.3
15.8
4.1
.1
2.0
  31.6
196.8
Mar
23.1
28.3
18.0
2.3
.3
1.2
  22.4
110.3
Apr
25.4
30.6
20.1
2.5
1
.5
  31.2
102.4
May
26.8
31.9
21.8
4.0
1.7
.5
  48.7
112.8
                   
June
26.0
30.2
21.7
11.0
4.6
1.1
  268.6
425.7
Jul
24.7
28.7
20.6
16.1
8.5
1.0
  396.4
634.9
Aug
24.8
28.9
20.7
15.5
7.3
1.0
  311.2
567.3
Sep
24.6
28.7
20.4
16.0
5.1
1.2
  337.1
667.4
Oct
23.0
26.9
19.0
15.0
2.1
1.0
  304.9
642.7
                   
Nov
22.2
26.7
17.8
9.5
.7
1.4
  141.5
447.8
Dec
20.5
24.7
16.3
8.5
.3
2.3
  112.9
412.1
                   
Average media
23.4
27.9
19.0
9.2
2.6
1.4
  172.4
384.5
Total
      110.5
31.7
16.4
  2068.8
4614.2
                   
Max/Min
  35.1
4.9
        862.5
 
Year
  May ´83
Feb ´79
        Aug ´72