July weather forecastSan Blas, Mexico
July
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).Temperature
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). San Blas, in the month of July, anticipates a consistent average low-temperature of 24.1°C (75.4°F).Heat index
In July, the heat index is appraised at a burning hot 46°C (114.8°F). Notice: Heat cramps and heat exhaustion are likely. Continued strenuous activity might lead to heatstroke.Note that heat index values are valued for light wind and location in the shade. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', combines both the air temperature and the humidity level to give a perceived human temperature. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
To achieve cooling, the human body employs perspiration, relying on the subsequent evaporation of sweat. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.
Humidity
The average relative humidity in July is 72%.Rainfall
In San Blas, during July, the rain falls for 19.5 days and regularly aggregates up to 78mm (3.07") of precipitation. Throughout the year, in San Blas, Mexico, there are 106.3 rainfall days, and 439mm (17.28") of precipitation is accumulated.Sea temperature
In San Blas, Mexico, in July, the average water temperature is 30°C (86°F).Note: One might not get the desired cooling sensation in waters that have temperatures higher than 30°C (86°F).
Daylight
In July, the average length of the day in San Blas is 13h and 18min.On the first day of the month, sunrise is at 5:22 am and sunset at 6:47 pm. On the last day of July, in San Blas, Mexico, sunrise is at 5:34 am and sunset at 6:40 pm MST.
Sunshine
The average sunshine in July in San Blas is 10.9h.UV index
The months with the highest UV index in San Blas are May through July, September and October, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for average individuals.Note: The UV index of 7 in July translates into these instructions:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Attention! The reflection of both water and sand can increase the intensity of UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
San Blas, Mexico
- Average high temperature in July: 33.6°C
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).
- Average low temperature in July: 24.1°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 in July
San Blas, Mexico
- Average pressure in July: 1013.1mbar
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 in July
San Blas, Mexico
- Average wind speed in July: 6.8km/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 in July
San Blas, Mexico
- Average humidity in July: 72%
The month with the highest relative humidity is September (79%).
The months with the lowest relative humidity are March and April (58%).
Average rainfall in July
San Blas, Mexico
- Average rainfall in July: 78mm
The wettest month (with the highest rainfall) is August (117mm).
The driest month (with the least rainfall) is April (0mm).
Average rainfall days in July
San Blas, Mexico
- Average rainfall days in July: 19.5 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 in July
San Blas, Mexico
- Average sea temperature in July: 30°C
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 in July /
Average sunshine in July
San Blas, Mexico
- Average daylight in July: 13h and 18min
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 July: 10h and 54min
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 in July
San Blas, Mexico
- Average sunshine days in July: 10.3 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 in July
San Blas, Mexico
- Average UV index in July: 7
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 in July
San Blas, Mexico
- Average cloud cover in July: 35
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 in July
San Blas, Mexico
- Average visibility in July: 10km
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).





