Annual mean 26°C · wettest around July · prevailing wind NE
Warmest
32.0 °C
Coldest
28.8 °C
Wettest
88%
Windiest
3.0 m/s
Prevailing
NE
2.4 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
never good
never good
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 San Juan Opico over the whole year is 26°C. April is the hottest month, with highs of about 32°C; January is the coldest, with lows of about 21°C. The rainy (wet) season in San Juan Opico runs from April to December, peaking in July with a 78% chance of rain on a given day. The dry season is January to March; January is the driest month, at 18%. Winds in San Juan Opico are highest in January, averaging 2.2 m/s (8 km/h), and lightest in June, at 1.4 m/s (5 km/h). The prevailing wind is from the NE. The clearest skies in San Juan Opico come in January, when the sky is typically 30% covered; June is the cloudiest month, at 61%.
Month by month San Juan Opico 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
29°C
21°C
30°C
18%
30%
2.2 m/s
24
70
8
February
30°C
21°C
30°C
31%
34%
2.1 m/s
17
72
5
March
31°C
22°C
32°C
26%
34%
2.1 m/s
11
62
3
April
32°C
23°C
33°C
59%
40%
2.0 m/s
5
46
1
May
31°C
23°C
34°C
72%
51%
1.5 m/s
3
35
0
June
29°C
23°C
33°C
71%
61%
1.4 m/s
6
40
1
July
30°C
23°C
33°C
78%
50%
1.7 m/s
5
40
1
August
30°C
22°C
33°C
73%
52%
1.6 m/s
4
39
1
September
30°C
22°C
33°C
77%
60%
1.5 m/s
4
41
1
October
29°C
22°C
32°C
74%
57%
1.5 m/s
9
50
2
November
29°C
22°C
31°C
67%
46%
1.9 m/s
17
64
5
December
29°C
21°C
30°C
48%
31%
2.2 m/s
25
67
8
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 San Juan Opico weather by season
Year round, San Juan Opico has days of about 29°C at their warmest in October, its coolest month, and 32°C in April, its warmest; the coolest hours of the day run from 21°C to 23°C through the year, and the average temperature over the year is 26°C around the clock. Rain is most likely around July and least likely around January. 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.
San Juan Opico weather in winterDecember to February
High 30°CLow 21°CRain 33%
Winter in San Juan Opico has typical daily highs of about 30°C and lows of about 21°C, with a 33% chance of rain on a given day.
San Juan Opico weather in springMarch to May
High 31°CLow 23°CRain 52%
Spring in San Juan Opico has typical daily highs of about 31°C and lows of about 23°C, with a 52% chance of rain on a given day.
San Juan Opico weather in summerJune to August
High 30°CLow 23°CRain 74%
Summer in San Juan Opico has typical daily highs of about 30°C and lows of about 23°C, with a 74% chance of rain on a given day.
San Juan Opico weather in autumnSeptember to November
High 29°CLow 22°CRain 73%
Autumn in San Juan Opico has typical daily highs of about 29°C and lows of about 22°C, with a 73% chance of rain on a given day.
When is the rainy season in San Juan Opico?
The rainy (wet) season in San Juan Opico runs from April to December, peaking in July with a 78% chance of rain on a given day. The dry season is January to March; January is the driest month, at 18%.
What time of year is San Juan Opico windiest?
Winds in San Juan Opico are highest in January, averaging 2.2 m/s (8 km/h), and lightest in June, at 1.4 m/s (5 km/h). The prevailing wind is from the NE.
What is the average temperature in San Juan Opico year round?
The average temperature in San Juan Opico over the whole year is 26°C. April is the hottest month, with highs of about 32°C; January is the coldest, with lows of about 21°C.