May weather forecastSei Mati, Indonesia

May

Weather in May

May, the last month of the spring in Sei Mati, is another hot month, with an average temperature fluctuating between 25.5°C (77.9°F) and 31.9°C (89.4°F).

Temperature

During May and June, Sei Mati experiences its peak temperatures, averaging a high-temperature of 31.9°C (89.4°F).

Heat index

The average heat index in May is evaluated at a blisteringly hot 42°C (107.6°F). Exercise extra preventive actions, heat cramps and heat exhaustion are plausible. Continuous activity could result in heatstroke.
Bear in mind that the heat index values are determined for shaded areas and light breezes. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', shows a temperature sensation when both heat and moisture conditions are combined. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
The primary way humans combat excessive warmth is by perspiring, letting sweat evaporate and cool the body. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.

Humidity

In Sei Mati, the average relative humidity in May is 76%.

Rainfall

In May, the rain falls for 27.8 days. Throughout May, 136mm (5.35") of precipitation is accumulated. Throughout the year, in Sei Mati, there are 317.8 rainfall days, and 1437mm (56.57") of precipitation is accumulated.

Daylight

In Sei Mati, the average length of the day in May is 12h and 17min.
On the first day of May, sunrise is at 06:14 and sunset at 18:29. On the last day of the month, sunrise is at 06:13 and sunset at 18:32 WIB.

Sunshine

The average sunshine in May is 9h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index. January through December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for the average person.
Note: The daily maximum UV index of 7 in May interprets into the following advice:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.

Updated: Jul 20, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Sei Mati sees the average highest temperatures during the months of May and June, peaking at 31.9°C (89.4°F).

In May, in Sei Mati, the average high-temperature is 31.9°C (89.4°F), and the average low-temperature is 25.5°C (77.9°F). In May, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, is evaluated at 42°C (107.6°F).

In May, the average relative humidity is 76%.

In May, the rain falls for 27.8 days. Throughout May, 136mm (5.35") of precipitation is accumulated.

The average day length in May is 12h and 17min.

On the first day of May, sunrise is at 06:14 and sunset at 18:29. On the last day of the month, sunrise is at 06:13 and sunset at 18:32 WIB.

In Sei Mati, the average sunshine duration in May is 9h.

January through December, with an average maximum UV index of 7, are months with the highest UV index.

January through December, with an average maximum UV index of 7, are months with the lowest UV index.

In Sei Mati, the average daily maximum UV index in May is 7. A UV Index estimate of 6 to 7 represents a high health threat from exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A May J J A S O N D

Apr

May

Jun

Average high temperature

31.8°C

31.9°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

8.2km/h

7.7km/h

8.1km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

0.9

2.7

3.8

Average UV index

Average cloud cover

Average visibility

Average temperature in May
Sei Mati, Indonesia

Average high temperature in May: 31.9°C

The warmest months (with the highest average high temperature) are May and June (31.9°C).
The month with the lowest average high temperature is December (29.7°C).

Average low temperature in May: 25.5°C

The month with the highest average low temperature is April (25.6°C).
The coldest month (with the lowest average low temperature) is January (24.1°C).

Average pressure in May
Sei Mati, Indonesia

Average pressure in May: 1009.5mbar

The month with the highest atmospheric pressure is January (1010.9mbar).
The month with the lowest atmospheric pressure is May (1009.5mbar).

Average wind speed in May
Sei Mati, Indonesia

Average wind speed in May: 6.8km/h

The windiest month (with the highest average wind speed) is February (7.8km/h).
The calmest month (with the lowest average wind speed) is September (6.7km/h).

Average humidity in May
Sei Mati, Indonesia

Average humidity in May: 76%

The month with the highest relative humidity is December (80%).
The months with the lowest relative humidity are March, June, July and August (75%).

Average rainfall in May
Sei Mati, Indonesia

Average rainfall in May: 136mm

The wettest month (with the highest rainfall) is October (158mm).
The driest month (with the least rainfall) is February (88mm).

Average rainfall days in May
Sei Mati, Indonesia

Average rainfall days in May: 27.8 days

The month with the highest number of rainy days is October (28.7 days).
The month with the least rainy days is February (21.3 days).

Average daylight in May /
Average sunshine in May
Sei Mati, Indonesia

Average daylight in May: 12h and 18min

The month with the longest days is June (Average daylight: 12h and 18min).
The month with the shortest days is December (Average daylight: 11h and 54min).

Average sunshine in May: 9h and 0min

The month with the most sunshine is June (Average sunshine: 9h and 18min).
The months with the least sunshine are November and December (Average sunshine: 8h and 0min).

Average sunshine days in May
Sei Mati, Indonesia

Average sunshine days in May: 2.7 days

The months with the most sunshine days are January and February (5 days).
The month with the least sunshine days is April (0.9 days).

Average UV index in May
Sei Mati, Indonesia

Average UV index in May: 7

The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).

Average cloud cover in May
Sei Mati, Indonesia

Average cloud cover in May: 36

The month with the most cloud cover is November (Cloud cover 47).
The months with the least cloud cover are March and June (Cloud cover 31).

Average visibility in May
Sei Mati, Indonesia

Average visibility in May: 10km

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October and December (10km).
The month with the lowest visibility is November (9km).