September weather forecast
Tumbes, Peru

Weather in September

September, the first month of the spring in Tumbes, is also a moderately hot month, with an average temperature varying between 25.1°C (77.2°F) and 20.2°C (68.4°F).

Temperature

August and September, with an average high-temperature of 25.1°C (77.2°F), are the coldest months.

Humidity

In Tumbes, the average relative humidity in September is 77%.

Rainfall

In Tumbes, Peru, during 3.3 rainfall days, 2mm (0.08") of precipitation is typically accumulated. Throughout the year, in Tumbes, there are 138.6 rainfall days, and 426mm (16.77") of precipitation is accumulated.

Sea temperature

The month with the coldest seawater is September, with an average sea temperature of 22.1°C (71.8°F).
Note: For individuals prone to feeling cold, swimming in 23°C (73.4°F) is still regarded as intolerable. A wetsuit is not a necessity, but sunshine, wind, and air temperature are essential factors for relishing swimming at 22.1°C (71.8°F).

Daylight

The average length of the day in September in Tumbes is 12h and 5min.
On the first day of the month, sunrise is at 06:20 and sunset at 18:23. On the last day of September, sunrise is at 06:07 and sunset at 18:15 -05.

Sunshine

In September, the average sunshine in Tumbes, Peru, is 9.6h.

UV index

The months with the lowest UV index are February, May through December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 6 in September transform into the following instructions:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. 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 is the coldest month in Tumbes?

August and September, with an average high-temperature of 25.1°C (77.2°F), are the coldest months in Tumbes.

What is the average humidity in September in Tumbes?

In September, the average relative humidity in Tumbes is 77%.

How many days does it rain in September in Tumbes?

In Tumbes, in September, it is raining for 3.3 days, with typically 2mm (0.08") of accumulated precipitation.

What is the month with the coldest sea water in Tumbes?

The month with the coldest seawater is September, with an average sea temperature of 22.1°C (71.8°F).

How warm is the water in September in Tumbes?

In September, the average sea temperature in Tumbes, Peru, is 22.1°C (71.8°F). Depending on a person's sensitivity to cold, with regards to sunshine, wind, and air temperature, a quick swim in 22.1°C (71.8°F) water may be enjoyable.

How many hours of daylight does Tumbes have in September?

In Tumbes, the average day length in September is 12h and 5min.

What time are sunrise and sunset in September in Tumbes?

In September, on the first day of the month, sunrise is at 06:20 and sunset at 18:23. On the last day of the month, sunrise is at 06:07 and sunset at 18:15 -05.

How many hours of sunshine does Tumbes have in September?

The average sunshine duration in September in Tumbes is 9.6h.

When is the lowest UV index in Tumbes?

The months with the lowest UV index in Tumbes are February, May through December, with an average maximum UV index of 6.

What is the UV index reading in September in Tumbes?

In Tumbes, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high hazard to health from exposure to the Sun's UV radiation.

Average temperature in September
Tumbes, Peru

Average temperature in September - Tumbes, Peru
  • Average high temperature in September: 25.1°C

The warmest month (with the highest average high temperature) is March (28°C).
The months with the lowest average high temperature are August and September (25.1°C).

  • Average low temperature in September: 20.2°C

The month with the highest average low temperature is February (23.8°C).
The coldest month (with the lowest average low temperature) is August (20.1°C).

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Average pressure in September
Tumbes, Peru

Average pressure in September - Tumbes, Peru
  • Average pressure in September: 1012.8mbar

The month with the highest atmospheric pressure is August (1012.9mbar).
The month with the lowest atmospheric pressure is February (1011.3mbar).

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Average wind speed in September
Tumbes, Peru

Average wind speed in September - Tumbes, Peru
  • Average wind speed in September: 11.1km/h

The windiest month (with the highest average wind speed) is September (11.1km/h).
The calmest months (with the lowest average wind speed) are March and April (8.8km/h).

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Average humidity in September
Tumbes, Peru

Average humidity in September - Tumbes, Peru
  • Average humidity in September: 77%

The months with the highest relative humidity are February and March (80%).
The month with the lowest relative humidity is November (75%).

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Average rainfall in September
Tumbes, Peru

Average rainfall in September - Tumbes, Peru
  • Average rainfall in September: 2mm

The wettest month (with the highest rainfall) is February (135mm).
The driest month (with the least rainfall) is August (1mm).

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Average rainfall days in September
Tumbes, Peru

Average rainfall days in September - Tumbes, Peru
  • Average rainfall days in September: 3.3 days

The month with the highest number of rainy days is March (26.1 days).
The month with the least rainy days is August (0.9 days).

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Average sea temperature in September
Tumbes, Peru

Average sea temperature in September - Tumbes, Peru
  • Average sea temperature in September: 22.1°C

The best month for swimming (with the highest average sea temperature) is February (25.8°C).
The coldest month (with the lowest average sea temperature) is September (22.1°C).

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Average daylight in September /
Average sunshine in September
Tumbes, Peru

Average daylight in September / Average sunshine in September - Tumbes, Peru
  • Average daylight in September: 12h and 5min

The month with the longest days is December (Average daylight: 12h and 20min).
The month with the shortest days is June (Average daylight: 11h and 55min).

  • Average sunshine in September: 9h and 36min

The month with the most sunshine is November (Average sunshine: 11h and 6min).
The month with the least sunshine is February (Average sunshine: 8h and 0min).

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Average sunshine days in September
Tumbes, Peru

Average sunshine days in September - Tumbes, Peru
  • Average sunshine days in September: 25.2 days

The month with the most sunshine days is August (28.7 days).
The month with the least sunshine days is February (1.1 days).

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Average UV index in September
Tumbes, Peru

Average UV index in September - Tumbes, Peru
  • Average UV index in September: 6

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

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Average cloud cover in September
Tumbes, Peru

Average cloud cover in September - Tumbes, Peru
  • Average cloud cover in September: 24

The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 19).

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Average visibility in September
Tumbes, Peru

Average visibility in September - Tumbes, Peru
  • Average visibility in September: 10km

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

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