September weather forecast
Surinam, Mauritius

September

Weather in September

September in Surinam, Mauritius marks the transition phase from cooler conditions towards a warmer climate. The amount of rainfall starts increasing, while the cloud cover remains relatively constant. A significant increase in sunlight time is noticeable with 9.1 hours of daily sunshine time. Wind speeds slow down further, leading to calm and serene weather. The lowering pressure indicates a shift from the prevailing high-pressure weather system.

Temperature

The transition from August to September brings an average high-temperature of a moderately hot 23.2°C (73.8°F), barely different from August's 22.9°C (73.2°F). A modest nighttime temperature average of 21.6°C (70.9°F) characterizes September.

Humidity

July through September, with an average relative humidity of 74%, are the least humid months.

Rainfall

The month with the least rainfall is September, when the rain falls for 12.8 days and typically collects 14mm (0.55") of precipitation.

Daylight

The average length of the day in September is 11h and 59min.
On the first day of September in Surinam, sunrise is at 06:18 and sunset at 18:01. On the last day of the month, sunrise is at 05:51 and sunset at 18:08 +04.

Sunshine

In Surinam, the average sunshine in September is 9.1h.

UV index

May through November, with an average maximum UV index of 6, are months with the lowest UV index in Surinam, Mauritius. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for average individuals.
Note: A maximum daily UV index of 6 during September morphs into the following directions:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.

Frequently asked questions

What are September temperatures in Surinam?
In September, the average high-temperature and low-temperature are 23.2°C (73.8°F) and 21.6°C (70.9°F) respectively. In April, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines air temperature and relative humidity, is estimated at 30°C (86°F).
What are the least humid months in Surinam?
The months with the lowest humidity in Surinam are July through September, with an average relative humidity of 74%.
What is the average humidity in September in Surinam?
In Surinam, the average relative humidity in September is 74%.
What is the driest month in Surinam?
The month with the least rainfall in Surinam, Mauritius, is September, when the rain falls for 12.8 days and typically collects 14mm (0.55") of precipitation.
How many days does it rain in September in Surinam?
In Surinam, in September, it is raining for 12.8 days, with typically 14mm (0.55") of accumulated precipitation.
What is the average length of the day in September in Surinam?
In Surinam, the average day length in September is 11h and 59min.
When is the sunrise / sunset in September in Surinam?
On the first day of September in Surinam, sunrise is at 06:18 and sunset at 18:01. On the last day of the month, sunrise is at 05:51 and sunset at 18:08 +04.
How many hours of sunshine does Surinam have in September?
In Surinam, Mauritius, the average sunshine duration in September is 9.1h.
What are the months with the lowest UV index in Surinam?
The months with the lowest UV index in Surinam are May through November, with an average maximum UV index of 6.
What is the UV index intensity in September in Surinam?
In September, the average daily maximum UV index in Surinam is 6. A UV Index estimate of 6 to 7 represents a high hazard to health from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in September - Surinam, Mauritius
Average temperature in September
Surinam, Mauritius
  • Average high temperature in September: 23.2°C

The warmest month (with the highest average high temperature) is February (28.2°C).
The month with the lowest average high temperature is August (22.9°C).

  • Average low temperature in September: 21.6°C

The month with the highest average low temperature is February (26°C).
The coldest month (with the lowest average low temperature) is August (21.3°C).

Average pressure in September - Surinam, Mauritius
Average pressure in September
Surinam, Mauritius
  • Average pressure in September: 1020.6mbar

The month with the highest atmospheric pressure is August (1021.2mbar).
The month with the lowest atmospheric pressure is February (1011.2mbar).

Average wind speed in September - Surinam, Mauritius
Average wind speed in September
Surinam, Mauritius
  • Average wind speed in September: 22.7km/h

The windiest month (with the highest average wind speed) is August (24.3km/h).
The calmest month (with the lowest average wind speed) is November (17.7km/h).

Average humidity in September - Surinam, Mauritius
Average humidity in September
Surinam, Mauritius
  • Average humidity in September: 74%

The month with the highest relative humidity is February (79%).
The months with the lowest relative humidity are July, August and September (74%).

Average rainfall in September - Surinam, Mauritius
Average rainfall in September
Surinam, Mauritius
  • Average rainfall in September: 14mm

The wettest month (with the highest rainfall) is February (105mm).
The driest month (with the least rainfall) is September (14mm).

Average rainfall days in September - Surinam, Mauritius
Average rainfall days in September
Surinam, Mauritius
  • Average rainfall days in September: 12.8 days

The month with the highest number of rainy days is March (21.8 days).
The month with the least rainy days is November (11.2 days).

Average daylight in September / Average sunshine in September - Surinam, Mauritius
Average daylight in September /
Average sunshine in September
Surinam, Mauritius
  • Average daylight in September: 12h and 0min

The month with the longest days is December (Average daylight: 13h and 24min).
The month with the shortest days is June (Average daylight: 10h and 54min).

  • Average sunshine in September: 9h and 1min

The month with the most sunshine is October (Average sunshine: 10h and 18min).
The month with the least sunshine is July (Average sunshine: 6h and 6min).

Average sunshine days in September - Surinam, Mauritius
Average sunshine days in September
Surinam, Mauritius
  • Average sunshine days in September: 10.5 days

The month with the most sunshine days is November (14.2 days).
The month with the least sunshine days is February (4 days).

Average UV index in September - Surinam, Mauritius
Average UV index in September
Surinam, Mauritius
  • Average UV index in September: 6

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

Average cloud cover in September - Surinam, Mauritius
Average cloud cover in September
Surinam, Mauritius
  • Average cloud cover in September: 38

The months with the most cloud cover are March and April (Cloud cover 45).
The months with the least cloud cover are September and October (Cloud cover 38).

Average visibility in September - Surinam, Mauritius
Average visibility in September
Surinam, Mauritius
  • Average visibility in September: 10km

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

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