May weather forecast
Tumbes, Peru

May in Tumbes, Peru marks a further decline in rainfall to 23mm (0.91"), reinforcing the dry season. The humidity also reduces slightly, but the climatic conditions still remain warm and muggy. The sea temperature experiences a minor drop to 24.8°C (76.6°F), yet it is still suitable for marine activities. Embracing the longer days, there are around 12 hours of daylight, offering sun-filled days for outdoor fun.

Temperature

The arrival of May is marked by an average high-temperature of a still warm 27.5°C (81.5°F), bearing a close resemblance to April. In Tumbes, the nightly May temperatures experience a slight descent from daily highs to an average low of 22.8°C (73°F).

Heat index

The heat index value during May is estimated at a hot 31°C (87.8°F). A sense of exhaustion might occur with extended exposure and activity, potentially causing heat cramps.
Evaluating the heat index requires understanding its values in the shade and with gentle winds. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', marries air temperature and humidity to produce a value illustrating perceived warmth. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.

Humidity

In May, the average relative humidity in Tumbes, Peru, is 78%.

Rainfall

In Tumbes, in May, it is raining for 13 days, with typically 23mm (0.91") of accumulated precipitation. In Tumbes, during the entire year, the rain falls for 138.6 days and collects up to 426mm (16.77") of precipitation.

Sea temperature

In May, the average sea temperature in Tumbes, Peru, is 24.8°C (76.6°F).
Note: For those with a heightened sensitivity to cold, sunshine, wind, and outside temperature make a big difference in enjoying a swim at 24.8°C (76.6°F). (Olympic swimming regulations state a water temperature of 25°C (77°F) to 28°C (82.4°F).)

Daylight

In Tumbes, the average length of the day in May is 11h and 58min.
On the first day of the month, sunrise is at 06:19 and sunset at 18:18. On the last day of May, sunrise is at 06:21 and sunset at 18:17 -05.

Sunshine

In May, the average sunshine in Tumbes is 9.1h.

UV index

The months with the lowest UV index in Tumbes are February, May through December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the average person.
Note: A typical high UV index of 6 in May suggests the following recommendations:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Caution! The Sun's UV rays become stronger due to reflections from water and sand.