April weather forecast
Nova Olinda, São Tomé and Príncipe

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Weather in April

As the city of Nova Olinda enters the month of April, the wet season extends its grasp. The temperatures fluctuating between 28.6°C (83.5°F) to 27.2°C (81°F), add to the mildness of the weather. However, the most defining characteristic is the 126mm (4.96") rainfall experienced over 22 days of the month. Life in Nova Olinda in April adapts strikingly to the persistent drizzle. The squirrels, birds, and other fauna become more visible, cherishing the wet earth and verdant foliage.

Temperature

April's onset brings an average high-temperature of a still moderately hot 28.6°C (83.5°F), showing a minute difference from March's 28.8°C (83.8°F). The month of April shows a minor drop from daytime temperatures, generally recording a low average of 27.2°C (81°F).

Heat index

For April, the heat index is estimated at a tropical 33°C (91.4°F). Ensure additional precautions, heat exhaustion and heat cramps may be expected. Heatstroke could occur from sustained activity.
Understand that the heat index values take into account shaded locations and mild winds. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', ties air temperature with relative humidity to produce the perceived temperature sensation. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. 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 are especially vital to children. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.

Humidity

The average relative humidity in April is 77%.

Rainfall

In Nova Olinda, during April, the rain falls for 22 days and regularly aggregates up to 126mm (4.96") of precipitation. Throughout the year, there are 241.7 rainfall days, and 1287mm (50.67") of precipitation is accumulated.

Daylight

In Nova Olinda, the average length of the day in April is 12h and 7min.
On the first day of April in Nova Olinda, São Tomé and Príncipe, sunrise is at 05:33 and sunset at 17:40. On the last day of the month, sunrise is at 05:26 and sunset at 17:33 GMT.

Sunshine

In April, the average sunshine in Nova Olinda, São Tomé and Príncipe, is 8.1h.

UV index

The months with the highest UV index are January through May, October through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum UV index, 7 during April, leads to the following recommendations:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.

Frequently asked questions

How hot is April in Nova Olinda?

In Nova Olinda, 28.6°C (83.5°F) is the average high-temperature and 27.2°C (81°F) is the average low-temperature during April. In April, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines air temperature and relative humidity, is estimated at 33°C (91.4°F).

What is the average humidity in April in Nova Olinda?

In April, the average relative humidity is 77%.

How much does it rain in Nova Olinda in April?

In Nova Olinda, São Tomé and Príncipe, in April, during 22 rainfall days, 126mm (4.96") of precipitation is typically accumulated.

What is the average length of the day in April in Nova Olinda?

In Nova Olinda, São Tomé and Príncipe, the average day length in April is 12h and 7min.

What time are sunrise and sunset in April in Nova Olinda?

In April, on the first day of the month, sunrise is at 05:33 and sunset at 17:40. On the last day of the month, in Nova Olinda, São Tomé and Príncipe, sunrise is at 05:26 and sunset at 17:33 GMT.

How long on average sun shines in April in Nova Olinda?

The average sunshine duration in April is 8.1h.

What are the months with the highest UV index in Nova Olinda?

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

What is the UV index intensity in April in Nova Olinda?

The average daily maximum UV index in April is 7. A UV Index of 6 to 7 symbolizes a high hazard to health from exposure to Sun's UV rays.

Average temperature in April
Nova Olinda, São Tomé and Príncipe

Average temperature in April - Nova Olinda, São Tomé and Príncipe
  • Average high temperature in April: 28.6°C

The warmest month (with the highest average high temperature) is March (28.8°C).
The month with the lowest average high temperature is July (24.5°C).

  • Average low temperature in April: 27.2°C

The month with the highest average low temperature is March (27.5°C).
The coldest month (with the lowest average low temperature) is July (23°C).

Average pressure in April
Nova Olinda, São Tomé and Príncipe

Average pressure in April - Nova Olinda, São Tomé and Príncipe
  • Average pressure in April: 1010.1mbar

The month with the highest atmospheric pressure is July (1014.3mbar).
The month with the lowest atmospheric pressure is February (1009.8mbar).

Average wind speed in April
Nova Olinda, São Tomé and Príncipe

Average wind speed in April - Nova Olinda, São Tomé and Príncipe
  • Average wind speed in April: 10.9km/h

The windiest month (with the highest average wind speed) is July (17.7km/h).
The calmest month (with the lowest average wind speed) is December (10.8km/h).

Average humidity in April
Nova Olinda, São Tomé and Príncipe

Average humidity in April - Nova Olinda, São Tomé and Príncipe
  • Average humidity in April: 77%

The months with the highest relative humidity are August, September and October (83%).
The month with the lowest relative humidity is March (76%).

Average rainfall in April
Nova Olinda, São Tomé and Príncipe

Average rainfall in April - Nova Olinda, São Tomé and Príncipe
  • Average rainfall in April: 126mm

The wettest month (with the highest rainfall) is November (224mm).
The driest month (with the least rainfall) is July (9mm).

Average rainfall days in April
Nova Olinda, São Tomé and Príncipe

Average rainfall days in April - Nova Olinda, São Tomé and Príncipe
  • Average rainfall days in April: 22 days

The month with the highest number of rainy days is December (28.6 days).
The month with the least rainy days is June (7.3 days).

Average daylight in April /
Average sunshine in April
Nova Olinda, São Tomé and Príncipe

Average daylight in April / Average sunshine in April - Nova Olinda, São Tomé and Príncipe
  • Average daylight in April: 12h and 1min

The month with the longest days is June (Average daylight: 12h and 6min).
The month with the shortest days is November (Average daylight: 12h and 6min).

  • Average sunshine in April: 8h and 1min

The month with the most sunshine is February (Average sunshine: 8h and 36min).
The month with the least sunshine is August (Average sunshine: 5h and 0min).

Average sunshine days in April
Nova Olinda, São Tomé and Príncipe

Average sunshine days in April - Nova Olinda, São Tomé and Príncipe
  • Average sunshine days in April: 6.2 days

The month with the most sunshine days is June (16.4 days).
The month with the least sunshine days is December (1.5 days).

Average UV index in April
Nova Olinda, São Tomé and Príncipe

Average UV index in April - Nova Olinda, São Tomé and Príncipe
  • Average UV index in April: 7

The months with the highest UV index are January, February, March, April, May, October, November and December (UV index 7).
The month with the lowest UV index is July (UV index 5).

Average cloud cover in April
Nova Olinda, São Tomé and Príncipe

Average cloud cover in April - Nova Olinda, São Tomé and Príncipe
  • Average cloud cover in April: 39

The month with the most cloud cover is August (Cloud cover 65).
The month with the least cloud cover is February (Cloud cover 37).

Average visibility in April
Nova Olinda, São Tomé and Príncipe

Average visibility in April - Nova Olinda, São Tomé and Príncipe
  • Average visibility in April: 10km

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

Nova Olinda, São Tomé and Príncipe

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