September Weather forecast - Spring forecast

Weather in September
Frequently asked questions
Average temperature in September
Average pressure in September
Average wind speed in September
Average humidity in September
Average rainfall in September
Average rainfall days in September
Average sea temperature in September
Average daylight in September
Average sunshine in September
Average sunshine days in September
Average UV index in September
Average cloud cover in September
Average visibility in September

An iconic mosque building, under clear blue skies, in Moroni, Comoros

Weather in September

The first month of the spring, September, is also a moderately hot month in Moroni, Comoros, with an average temperature ranging between max 25.3°C (77.5°F) and min 24°C (75.2°F).

Temperature

July through September, with an average high-temperature of 25.3°C (77.5°F), are the coldest months.

Humidity

In September, the average relative humidity is 75%.

Rainfall

The month with the least rainfall is September, when the rain falls for 8.4 days and typically collects 11mm (0.43") of precipitation.

Sea temperature

In Moroni, the average water temperature is 26°C (78.8°F).
Note: For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

Daylight

The average length of the day in September in Moroni is 12h and 2min.
On the first day of September in Moroni, sunrise is at 06:10 and sunset at 18:03. On the last day of the month, sunrise is at 05:51 and sunset at 18:02 EAT.

Sunshine

In September, the average sunshine in Moroni is 10.3h.

UV index

The months with the highest UV index are January through June, September through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for average individuals.
Note: In September, the average maximum UV index of 7 translate into the following recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.

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FAQ

What are the coldest months in Moroni?

July through September, with an average high-temperature of 25.3°C (77.5°F), are the coldest months.

What is the temperature in September in Moroni?

The average high-temperature, in September, is 25.3°C (77.5°F), while the average low-temperature is 24°C (75.2°F). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines air temperature and relative humidity, in May is appraised at 30°C (86°F).

What is the average humidity in September in Moroni?

In Moroni, the average relative humidity in September is 75%.

What is the driest month in Moroni?

The month with the least rainfall in Moroni is September, when the rain falls for 8.4 days and typically collects 11mm (0.43") of precipitation.

How much does it rain in Moroni in September?

In Moroni, during September, the rain falls for 8.4 days and regularly aggregates up to 11mm (0.43") of precipitation.

How warm is the water in September in Moroni?

In Moroni, the average seawater temperature in September is 26°C (78.8°F). For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

What is the average length of the day in September in Moroni?

In September, the average day length in Moroni is 12h and 2min.

What time are sunrise and sunset in September in Moroni?

On the first day of September, sunrise is at 06:10 and sunset at 18:03. On the last day of the month, sunrise is at 05:51 and sunset at 18:02 EAT.

How long on average sun shines in September in Moroni?

In September, the average sunshine duration in Moroni, Comoros, is 10.3h.

What are the months with the highest UV index in Moroni?

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

What is the UV index intensity in September in Moroni?

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

Today

Tomorrow

Long-term

Year J F M A M J J A September O N D

Aug

September

Oct

Average high temperature

25.3°C 77.5°F

26.5°C 79.7°F

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

19.1km/h 11.9mph

13.4km/h 8.3mph

12.9km/h 8mph

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

10.3

8.4

Average sea temperature

Average daylight

Average sunshine

Average sunshine days

17.4

18.1

16.5

Average UV index

Average cloud cover

20%

26%

Average visibility

10km 6.2mi

Average temperature in September
Moroni, Comoros

Average high temperature in September: 25.3°C

The warmest month (with the highest average high temperature) is March (28.8°C).
The months with the lowest average high temperature are July, August and September (25.3°C).

Average low temperature in September: 24°C

The month with the highest average low temperature is March (27.1°C).
The coldest month (with the lowest average low temperature) is August (23.8°C).

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Average pressure in September
Moroni, Comoros

Average pressure in September: 1016.2mbar

The month with the highest atmospheric pressure is July (1017mbar).
The month with the lowest atmospheric pressure is February (1010mbar).

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Average wind speed in September
Moroni, Comoros

Average wind speed in September: 12.9km/h

The windiest month (with the highest average wind speed) is July (23.7km/h).
The calmest month (with the lowest average wind speed) is November (11.2km/h).

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Average humidity in September
Moroni, Comoros

Average humidity in September: 75%

The month with the highest relative humidity is January (78%).
The months with the lowest relative humidity are July and August (74%).

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Average rainfall in September
Moroni, Comoros

Average rainfall in September: 11mm

The wettest month (with the highest rainfall) is January (233mm).
The driest month (with the least rainfall) is September (11mm).

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Average rainfall days in September
Moroni, Comoros

Average rainfall days in September: 8.4 days

The months with the highest number of rainy days are March and April (23 days).
The month with the least rainy days is September (8.4 days).

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Average sea temperature in September
Moroni, Comoros

Average sea temperature in September: 26°C

The best months for swimming (with the highest average sea temperature) are January, February, March and April (29°C).
The coldest month (with the lowest average sea temperature) is August (25°C).

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Average daylight in September /
Average sunshine in September
Moroni, Comoros

Average daylight in September: 12h and 2min

The month with the longest days is December (Average daylight: 12h and 48min).
The month with the shortest days is June (Average daylight: 11h and 27min).

Average sunshine in September: 10h and 18min

The month with the most sunshine is November (Average sunshine: 11h and 18min).
The month with the least sunshine is May (Average sunshine: 6h and 54min).

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Average sunshine days in September
Moroni, Comoros

Average sunshine days in September: 18.1 days

The month with the most sunshine days is September (18.1 days).
The month with the least sunshine days is April (5.8 days).

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Average UV index in September
Moroni, Comoros

Average UV index in September: 7

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

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Average cloud cover in September
Moroni, Comoros

Average cloud cover in September: 20

The month with the most cloud cover is January (Cloud cover 40).
The months with the least cloud cover are August and September (Cloud cover 20).

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Average visibility in September
Moroni, Comoros

Average visibility in September: 10km

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

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September weather forecast
Moroni, Comoros

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