Climate and monthly weather forecastSan Blas, Mexico
Climate and monthly weather forecast
The best time to visit San Blas
The best months for a swim in San Blas, Mexico, are May and November, with a perfect temperature - varying between 25°C (77°F) and 29°C (84.2°F), and scarce rainfall.Weather in January
January, like December, in San Blas, Mexico, is another warm winter month, with an average temperature fluctuating between 16.3°C (61.3°F) and 29.3°C (84.7°F). San Blas's coldest months, January and December, record an average high-temperature of 29.3°C (84.7°F). For most parts of January, the heat index is appraised at a tropical 32°C (89.6°F). Weather in January »Weather in February
February, the last month of the winter in San Blas, is another warm month, with temperature in the range of an average low of 16.2°C (61.2°F) and an average high of 29.7°C (85.5°F). With the onset of February, San Blas's average high-temperature clocks in at a still moderately hot 29.7°C (85.5°F), showing a minor fluctuation from the previous month. Weather in February »Weather in March
March, the first month of the spring in San Blas, is a hot month, with an average temperature varying between 16.4°C (61.5°F) and 31.3°C (88.3°F). San Blas's average high-temperature in March is a tropical 31.3°C (88.3°F), indicating a subtle variation from February. Weather in March »Weather in April
April, the same as March, in San Blas, Mexico, is another tropical spring month, with an average temperature ranging between max 32.7°C (90.9°F) and min 16.8°C (62.2°F). In San Blas, April's average high-temperature stands at a still hot 32.7°C (90.9°F), closely related to the preceding month. Weather in April »Weather in May
The last month of the spring, May, is another tropical month in San Blas, Mexico, with temperature in the range of an average low of 19.5°C (67.1°F) and an average high of 34°C (93.2°F). The ideal sea water temperature of 27.4°C (81.3°F) and only 1.9 rainfall days, with 3mm (0.12") of accumulated rainfall, makes May the best time for swimming and other water activities. Weather in May »Weather in June
June, the first month of the summer in San Blas, is still a tropical month, with temperature in the range of an average high of 33.4°C (92.1°F) and an average low of 23.1°C (73.6°F). The average high-temperature during June registers at a still hot 33.4°C (92.1°F), maintaining a close resemblance to the previous month. Weather in June »Weather in July
July, like June, is another tropical summer month in San Blas, Mexico, with an average temperature fluctuating between 24.1°C (75.4°F) and 33.6°C (92.5°F). July registers an average high-temperature of a still tropical 33.6°C (92.5°F), slightly varied from June's 33.4°C (92.1°F). Weather in July »Weather in August
The last month of the summer, August, is another hot month in San Blas, Mexico, with temperature in the range of an average high of 33.2°C (91.8°F) and an average low of 24.3°C (75.7°F). San Blas marks the start of August with an average high-temperature of a still hot 33.2°C (91.8°F), hinting at a slight fluctuation from July's 33.6°C (92.5°F). Weather in August »Weather in September
The first month of the autumn, September, is still a tropical month in San Blas, Mexico, with temperature in the range of an average low of 23.9°C (75°F) and an average high of 32.2°C (90°F). A minimal variation is noted in San Blas's average high-temperature at the onset of September, reaching a still hot 32.2°C (90°F) from August's 33.2°C (91.8°F). Weather in September »Weather in October
October, the same as September, in San Blas, Mexico, is another hot autumn month, with an average temperature ranging between min 22.7°C (72.9°F) and max 32.5°C (90.5°F). The weather during October records an average high-temperature of a still tropical 32.5°C (90.5°F), closely mirroring the preceding month. Weather in October »Weather in November
The last month of the autumn, November, is another tropical month in San Blas, Mexico, with an average temperature varying between 31.1°C (88°F) and 20.1°C (68.2°F). The ideal sea water temperature of 27.4°C (81.3°F) and only 4.1 rainfall days, with 15mm (0.59") of accumulated rainfall, makes November the best time for swimming and other water activities. Weather in November »Weather in December
The first month of the winter, December, is also a moderately hot month in San Blas, Mexico, with an average temperature fluctuating between 29.3°C (84.7°F) and 17.2°C (63°F). The temperature hits its lowest levels in January and December, recording an average high-temperature of 29.3°C (84.7°F). December's average heat index is appraised at a tropical 33°C (91.4°F). Weather in December »Updated: Feb 9, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
January and December are identified as the coldest months in San Blas, Mexico, with an average high-temperature of 29.3°C (84.7°F).
In San Blas, Mexico, during the entire year, the rain falls for 106.3 days and collects up to 439mm (17.28") of precipitation.
The months with the least sunshine are January, November and December, with an average of 7.4h of sunshine.
The months with the lowest UV index in San Blas are January through April, August, November and December, with an average maximum UV index of 6.
February is the month with the coldest seawater, with an average sea temperature of 23.3°C (73.9°F).
March and April, with an average relative humidity of 58%, are the least humid months in San Blas.
April is the only month when rain does not fall in San Blas, Mexico.
In San Blas, the average temperatures in May are the highest, with a peak at 34°C (93.2°F) and a low of 19.5°C (67.1°F).
January through March, May through December are months with rainfall in San Blas, Mexico.
With an average of 11.9h of sunshine, May has the most sunshine of the year in San Blas.
The months with the highest UV index are May through July, September and October, with an average maximum UV index of 7.
With an average of 13h and 24min of daylight, June has the longest days of the year.
The month with the most rainfall is August, when the rain falls for 22 days and typically aggregates up to 117mm (4.61") of precipitation.
The month with the warmest seawater in San Blas, Mexico, is August, with an average sea temperature of 30.7°C (87.3°F).
With an average relative humidity of 79%, September is the most humid month.
The month with the shortest days is December, with an average of 10h and 48min of daylight.
San Blas does not observe Daylight Saving Time (DST). MST timezone is used over the entire year.
Average temperature
San Blas, Mexico
The warmest month (with the highest average high temperature) is May (34°C).
The months with the lowest average high temperature are January and December (29.3°C).
The month with the highest average low temperature is August (24.3°C).
The coldest month (with the lowest average low temperature) is February (16.2°C).
Average pressure
San Blas, Mexico
- Average pressure in January:
1015.4mbar - Average pressure in February:
1014.5mbar - Average pressure in March:
1014.1mbar - Average pressure in April:
1013.1mbar - Average pressure in May:
1012.1mbar - Average pressure in June:
1011.6mbar
- Average pressure in July:
1013.1mbar - Average pressure in August:
1012.3mbar - Average pressure in September:
1011.5mbar - Average pressure in October:
1012.1mbar - Average pressure in November:
1013.9mbar - Average pressure in December:
1014.8mbar
The month with the highest atmospheric pressure is January (1015.4mbar).
The month with the lowest atmospheric pressure is September (1011.5mbar).
Average wind speed
San Blas, Mexico
- Average wind speed in January:
6.4km/h - Average wind speed in February:
6.6km/h - Average wind speed in March:
7.3km/h - Average wind speed in April:
7.5km/h - Average wind speed in May:
7.8km/h - Average wind speed in June:
7.6km/h
- Average wind speed in July:
6.8km/h - Average wind speed in August:
6.4km/h - Average wind speed in September:
6.1km/h - Average wind speed in October:
6.2km/h - Average wind speed in November:
6.2km/h - Average wind speed in December:
5.9km/h
The windiest month (with the highest average wind speed) is May (7.8km/h).
The calmest month (with the lowest average wind speed) is December (5.9km/h).
Average humidity
San Blas, Mexico
The month with the highest relative humidity is September (79%).
The months with the lowest relative humidity are March and April (58%).
Average rainfall
San Blas, Mexico
The wettest month (with the highest rainfall) is August (117mm).
The driest month (with the least rainfall) is April (0mm).
Average rainfall days
San Blas, Mexico
- Average rainfall days in January:
3.3 days - Average rainfall days in February:
2.7 days - Average rainfall days in March:
1.9 days - Average rainfall days in April:
0.7 days - Average rainfall days in May:
1.9 days - Average rainfall days in June:
12.3 days
- Average rainfall days in July:
19.5 days - Average rainfall days in August:
22 days - Average rainfall days in September:
20.5 days - Average rainfall days in October:
12 days - Average rainfall days in November:
4.1 days - Average rainfall days in December:
5.4 days
The month with the highest number of rainy days is August (22 days).
The month with the least rainy days is April (0.7 days).
Average sea temperature
San Blas, Mexico
The best month for swimming (with the highest average sea temperature) is August (30.7°C).
The coldest month (with the lowest average sea temperature) is February (23.3°C).
Average daylight / Average sunshine
San Blas, Mexico
- Average daylight in January:
11h and 0min - Average daylight in February:
11h and 30min - Average daylight in March:
12h and 0min - Average daylight in April:
12h and 42min - Average daylight in May:
13h and 12min - Average daylight in June:
13h and 24min
- Average daylight in July:
13h and 18min - Average daylight in August:
12h and 48min - Average daylight in September:
12h and 18min - Average daylight in October:
11h and 36min - Average daylight in November:
11h and 6min - Average daylight in December:
10h and 48min
The month with the longest days is June (Average daylight: 13h and 24min).
The month with the shortest days is December (Average daylight: 10h and 48min).
- Average sunshine in January:
7h and 24min - Average sunshine in February:
8h and 6min - Average sunshine in March:
10h and 6min - Average sunshine in April:
11h and 42min - Average sunshine in May:
11h and 54min - Average sunshine in June:
11h and 6min
- Average sunshine in July:
10h and 54min - Average sunshine in August:
10h and 24min - Average sunshine in September:
9h and 54min - Average sunshine in October:
8h and 48min - Average sunshine in November:
7h and 24min - Average sunshine in December:
7h and 24min
The month with the most sunshine is May (Average sunshine: 11h and 54min).
The months with the least sunshine are January, November and December (Average sunshine: 7h and 24min).
Average sunshine days
San Blas, Mexico
- Average sunshine days in January:
26.7 days - Average sunshine days in February:
24.6 days - Average sunshine days in March:
28.9 days - Average sunshine days in April:
29.7 days - Average sunshine days in May:
28.8 days - Average sunshine days in June:
15.4 days
- Average sunshine days in July:
10.3 days - Average sunshine days in August:
7.3 days - Average sunshine days in September:
8.2 days - Average sunshine days in October:
14.9 days - Average sunshine days in November:
23.5 days - Average sunshine days in December:
25.2 days
The month with the most sunshine days is April (29.7 days).
The month with the least sunshine days is August (7.3 days).
Average UV index
San Blas, Mexico
The months with the highest UV index are May, June, July, September and October (UV index 7).
The months with the lowest UV index are January, February, March, April, August, November and December (UV index 6).
Average cloud cover
San Blas, Mexico
The month with the most cloud cover is August (Cloud cover 41).
The month with the least cloud cover is May (Cloud cover 9).
Average visibility
San Blas, Mexico
The months with the highest visibility are January, February, March, April, May, June, July, November and December (10km).
The months with the lowest visibility are August, September and October (9km).
