May weather forecast
Port Mourant, Guyana

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Weather in May

As May arrives in Port Mourant with increased warmth, extended daylight, and added rainfall, outdoor activities become vibrant and diverse. A significant leap in rainfall to 285mm (11.22") champions the return of the much-anticipated rainy season. Although the heavy showers may impose momentary halts to the regular activities, the steady visibility compensates for it by ensuring safer navigation. Interestingly, despite the damp conditions, the additional dose of sunshine sparks enthusiasm, making May in Port Mourant agreeable in its unique way.

Temperature

The initiation of May sees an average high-temperature of a still moderately hot 28.8°C (83.8°F), showing minor variations from the previous month. During the month of May, Port Mourant's average nighttime temperature closely mirrors its daytime counterpart, at a still warm 25.3°C (77.5°F).

Heat index

In May, the average heat index is estimated at a tropical 34°C (93.2°F). Exercise heightened safety, heat cramps and heat exhaustion are probable. Persistent activity may provoke heatstroke.
Understanding the heat index involves considering values for shaded locales with light wind. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', embodies the combination of air temperature and moisture content to illustrate perceived heat. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.

Humidity

In May, the average relative humidity in Port Mourant is 81%.

Rainfall

In Port Mourant, Guyana, during May, the rain falls for 28.1 days and regularly aggregates up to 285mm (11.22") of precipitation. In Port Mourant, during the entire year, the rain falls for 312.6 days and collects up to 2298mm (90.47") of precipitation.

Daylight

In Port Mourant, the average length of the day in May is 12h and 25min.
On the first day of the month, sunrise is at 05:35 and sunset at 17:56. On the last day of May, in Port Mourant, sunrise is at 05:33 and sunset at 18:01 -04.

Sunshine

In Port Mourant, Guyana, the average sunshine in May is 7.3h.

UV index

March and May, with an average maximum UV index of 6, are months with the lowest UV index in Port Mourant, Guyana. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: The daily high UV index of 6 in May translates into this advice:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Updated: Feb 19, 2024 | Published by: Weather Atlas | About Us / Weather Forecasting / Data Sources

Frequently asked questions

Is it hot in Port Mourant during May?

During May, Port Mourant experiences an average high-temperature of 28.8°C (83.8°F) and a low-temperature of 25.3°C (77.5°F). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which factors the actual air temperature with the relative humidity, in May is estimated at 34°C (93.2°F).

What is the average humidity in May in Port Mourant?

In Port Mourant, Guyana, the average relative humidity in May is 81%.

How much does it rain in Port Mourant in May?

In Port Mourant, Guyana, in May, it is raining for 28.1 days, with typically 285mm (11.22") of accumulated precipitation.

What is the average length of the day in May in Port Mourant?

The average day length in May in Port Mourant is 12h and 25min.

When are sunrise and sunset in May in Port Mourant?

On the first day of May in Port Mourant, Guyana, sunrise is at 05:35 and sunset at 17:56. On the last day of the month, sunrise is at 05:33 and sunset at 18:01 -04.

How long on average sun shines in May in Port Mourant?

In Port Mourant, the average sunshine duration in May is 7.3h.

What is the month with the lowest UV index in Port Mourant?

March and May, with an average maximum UV index of 6, are months with the lowest UV index in Port Mourant.

How high is the UV index in May in Port Mourant?

The average daily maximum UV index in May in Port Mourant is 6. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to UV radiation.

Average temperature in May
Port Mourant, Guyana

Average temperature in May - Port Mourant, Guyana
  • Average high temperature in May: 28.8°C

The warmest month (with the highest average high temperature) is September (30.8°C).
The months with the lowest average high temperature are January and February (28°C).

  • Average low temperature in May: 25.3°C

The months with the highest average low temperature are September and October (25.9°C).
The coldest months (with the lowest average low temperature) are January, February and July (24.8°C).

Average pressure in May
Port Mourant, Guyana

Average pressure in May - Port Mourant, Guyana
  • Average pressure in May: 1012.2mbar

The month with the highest atmospheric pressure is June (1012.9mbar).
The month with the lowest atmospheric pressure is November (1009.4mbar).

Average wind speed in May
Port Mourant, Guyana

Average wind speed in May - Port Mourant, Guyana
  • Average wind speed in May: 15.1km/h

The windiest month (with the highest average wind speed) is March (16.7km/h).
The calmest month (with the lowest average wind speed) is July (11.3km/h).

Average humidity in May
Port Mourant, Guyana

Average humidity in May - Port Mourant, Guyana
  • Average humidity in May: 81%

The month with the highest relative humidity is June (82%).
The month with the lowest relative humidity is September (76%).

Average rainfall in May
Port Mourant, Guyana

Average rainfall in May - Port Mourant, Guyana
  • Average rainfall in May: 285mm

The wettest month (with the highest rainfall) is June (314mm).
The driest month (with the least rainfall) is March (97mm).

Average rainfall days in May
Port Mourant, Guyana

Average rainfall days in May - Port Mourant, Guyana
  • Average rainfall days in May: 28.1 days

The month with the highest number of rainy days is July (29.9 days).
The month with the least rainy days is October (23.5 days).

Average daylight in May /
Average sunshine in May
Port Mourant, Guyana

Average daylight in May / Average sunshine in May - Port Mourant, Guyana
  • Average daylight in May: 12h and 2min

The month with the longest days is June (Average daylight: 12h and 30min).
The month with the shortest days is December (Average daylight: 11h and 48min).

  • Average sunshine in May: 7h and 2min

The month with the most sunshine is September (Average sunshine: 9h and 18min).
The month with the least sunshine is April (Average sunshine: 7h and 0min).

Average sunshine days in May
Port Mourant, Guyana

Average sunshine days in May - Port Mourant, Guyana
  • Average sunshine days in May: 1.3 days

The month with the most sunshine days is October (5 days).
The month with the least sunshine days is July (0.3 days).

Average UV index in May
Port Mourant, Guyana

Average UV index in May - Port Mourant, Guyana
  • Average UV index in May: 6

The months with the highest UV index are January, February, April, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are March and May (UV index 6).

Average cloud cover in May
Port Mourant, Guyana

Average cloud cover in May - Port Mourant, Guyana
  • Average cloud cover in May: 48

The months with the most cloud cover are February and April (Cloud cover 49).
The month with the least cloud cover is September (Cloud cover 24).

Average visibility in May
Port Mourant, Guyana

Average visibility in May - Port Mourant, Guyana
  • Average visibility in May: 9km

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

Port Mourant, Guyana

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