March weather forecast
Puerto Vallarta, Mexico

March marks the transition from the cool to warmer months, indicative of an impending summer. There is a noticeable increase in temperatures as compared to February, but this is balanced with a corresponding decrease in humidity levels. While enjoying the warmth, visitants can appreciate a decrease in the occurrence of rainfall to a low of 6mm (0.24"). The hours of daylight extend, which indirectly increases the duration of outdoor activities one can engage in. Puerto Vallarta is gradually becoming a sun-soaked paradise as spring emerges.

Temperature

The average high-temperature in March in Puerto Vallarta, at a still warm 28°C (82.4°F), reveals a modest deviation from February's 26.4°C (79.5°F). In the month of March, Puerto Vallarta's average low-temperature falls to an enjoyable 16.8°C (62.2°F).

Heat index

In March, the average heat index is appraised at 29°C (84.2°F). With ongoing exposure and activity, one might experience weariness, and heat cramps could ensue.
It is emphasized that the heat index's values are meant for shaded zones with mild winds. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is an aggregate value of air's warmth and moisture to show the human-felt temperature. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.

Humidity

March and April, with an average relative humidity of 60%, are the least humid months in Puerto Vallarta.

Rainfall

In Puerto Vallarta, Mexico, during March, the rain falls for 3.3 days and regularly aggregates up to 6mm (0.24") of precipitation. Throughout the year, there are 153.3 rainfall days, and 735mm (28.94") of precipitation is accumulated.

Sea temperature

The months with the coldest seawater are February and March, with an average sea temperature of 23.9°C (75°F).
Note: Individual preferences to cold, influenced by conditions such as sunshine, wind, and surrounding temperature, play a part in the comfort of swimming in 23.9°C (75°F) waters. (As an aside, Olympic swimming standards dictate water temperatures from 25°C (77°F) to 28°C (82.4°F).)

Daylight

The average length of the day in March is 12h and 3min.
On the first day of March in Puerto Vallarta, sunrise is at 7:20 am and sunset at 7:05 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 7:15 pm CST.

Sunshine

In March, the average sunshine is 9.7h.

UV index

January through November, with an average maximum UV index of 6, are months with the highest UV index in Puerto Vallarta. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the average person.
Note: The average daily UV index of 6 in March transforms into the following instructions:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Heads up! UV intensity is amplified by reflections from water and sand.