Annual mean 22°C · wettest around September · prevailing wind E
Warmest
31.4 °C
Coldest
14.8 °C
Wettest
45%
Windiest
6.2 m/s
Prevailing
E
5.0 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
never good
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Every reading
bars actual · line feels-like, °Cchance of rain, %wind speed, m/ssky covered, %
The average temperature in Port Lavaca over the whole year is 22°C. August is the hottest month, with highs of about 31°C; January is the coldest, with lows of about 11°C. Port Lavaca has no sharply defined rainy season: the chance of rain on a given day runs from 30% in February, the driest month, to 37% in September, the wettest. Winds in Port Lavaca are highest in May, averaging 5.4 m/s (19 km/h), and lightest in September, at 3.9 m/s (14 km/h). The prevailing wind is from the E. The clearest skies in Port Lavaca come in August, when the sky is typically 23% covered; February is the cloudiest month, at 58%.
Month by month Port Lavaca climate by month: average temperatures year round · click a month to read it
Month
High
Low
Feels like
Chance of rain
Cloud
Wind
Being outside
Sun
Walking
January
15°C
11°C
13°C
32%
50%
4.4 m/s
45
5
64
February
17°C
13°C
16°C
30%
58%
4.6 m/s
56
11
58
March
21°C
17°C
20°C
30%
56%
4.8 m/s
68
23
53
April
24°C
20°C
24°C
32%
53%
5.2 m/s
67
42
34
May
27°C
24°C
29°C
34%
51%
5.4 m/s
28
62
7
June
30°C
27°C
34°C
35%
34%
4.9 m/s
4
40
1
July
31°C
27°C
35°C
34%
27%
4.4 m/s
2
26
0
August
31°C
27°C
35°C
33%
23%
4.3 m/s
2
20
0
September
30°C
25°C
33°C
37%
28%
3.9 m/s
11
41
2
October
26°C
21°C
27°C
33%
29%
4.2 m/s
33
53
20
November
21°C
16°C
21°C
34%
47%
4.1 m/s
55
33
44
December
18°C
13°C
17°C
32%
51%
4.0 m/s
57
15
59
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Port Lavaca weather by season
Year round, Port Lavaca has days of about 15°C at their warmest in January, its coolest month, and 31°C in August, its warmest; the coolest hours of the day run from 11°C to 27°C through the year, and the average temperature over the year is 22°C around the clock. Rain is most likely around September and least likely around February. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Port Lavaca weather in winterDecember to February
High 17°CLow 12°CRain 31%
Winter in Port Lavaca has typical daily highs of about 17°C and lows of about 12°C, with a 31% chance of rain on a given day.
Port Lavaca weather in springMarch to May
High 24°CLow 20°CRain 32%
Spring in Port Lavaca has typical daily highs of about 24°C and lows of about 20°C, with a 32% chance of rain on a given day.
Port Lavaca weather in summerJune to August
High 31°CLow 27°CRain 34%
Summer in Port Lavaca has typical daily highs of about 31°C and lows of about 27°C, with a 34% chance of rain on a given day.
Port Lavaca weather in autumnSeptember to November
High 25°CLow 21°CRain 35%
Autumn in Port Lavaca has typical daily highs of about 25°C and lows of about 21°C, with a 35% chance of rain on a given day.
When is the rainy season in Port Lavaca?
Port Lavaca has no sharply defined rainy season: the chance of rain on a given day runs from 30% in February, the driest month, to 37% in September, the wettest.
What time of year is Port Lavaca windiest?
Winds in Port Lavaca are highest in May, averaging 5.4 m/s (19 km/h), and lightest in September, at 3.9 m/s (14 km/h). The prevailing wind is from the E.
What is the average temperature in Port Lavaca year round?
The average temperature in Port Lavaca over the whole year is 22°C. August is the hottest month, with highs of about 31°C; January is the coldest, with lows of about 11°C.