September weather forecast
Utila, Honduras

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A diving pier and boats docked on a bay on the island of Utila in Honduras
A diving pier and boats docked on a bay on the island of Utila in Honduras

Weather in September

September weather in Utila, Honduras, brings mild changes to the temperature and rainfall parameters observed in August. Average wind speeds reduce to 9.2km/h (5.7mph) in this month, making it the year's calmest month. The progression from September to October features a significant rise in rainfall, accompanied by decreased sunshine hours. Despite these changes, Utila’s temperatures remain consistent, offering warm days and mildly cooler nights. September stands as a transition month before the onset of more frequent rain in the following months.

Temperature

The dawn of September sees an average high-temperature of a still warm 28.7°C (83.7°F), subtly contrasting with August's 28.8°C (83.8°F). Utila experiences a nighttime temperature average of 23.3°C (73.9°F) during September.

Heat index

For most parts of September, the heat index is computed to be a tropical 34°C (93.2°F). Exercise special caution, heat exhaustion and heat cramps are probable. Prolonged activity may induce heatstroke.
Factoring in the heat index, values are geared towards shaded areas with light breezes. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', determines the feeling of heat when you account for the relative humidity. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.

Humidity

In September, the average relative humidity in Utila is 81%.

Rainfall

In Utila, during September, the rain falls for 27.5 days and regularly aggregates up to 112mm (4.41") of precipitation. In Utila, during the entire year, the rain falls for 274.1 days and collects up to 1224mm (48.19") of precipitation.

Sea temperature

The months with the warmest seawater in Utila are June through October, with an average sea temperature of 29°C (84.2°F).
Note: Water temperatures between 25°C (77°F) and 29°C (84.2°F) are ideal for all water activities, offering enjoyment without causing discomfort over extended periods.

Daylight

In September, the average length of the day in Utila is 12h and 13min.
On the first day of the month, sunrise is at 05:34 and sunset at 18:00. On the last day of September, in Utila, Honduras, sunrise is at 05:37 and sunset at 17:37 CST.

Sunshine

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

UV index

The months with the lowest UV index in Utila, Honduras, are January, February, July, September through December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index of 6 during September translates into the following directions:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Be mindful! Sand and water reflections can up the Sun's UV exposure.
Updated: Feb 9, 2024 | Published by: Weather Atlas | About Us / Weather Forecasting / Data Sources

Frequently asked questions

How hot is September in Utila?

In September, the average high-temperature and low-temperature in Utila are 28.7°C (83.7°F) and 23.3°C (73.9°F) respectively. In September, the average heat index (a.k.a. 'feels like', 'real feel'), which combines relative humidity and air temperature, is computed to be 34°C (93.2°F).

What is the average humidity in September in Utila?

In September, the average relative humidity in Utila is 81%.

How much does it rain in Utila in September?

In Utila, in September, during 27.5 rainfall days, 112mm (4.41") of precipitation is typically accumulated.

When is the sea warmest in Utila?

The months with the warmest seawater are June through October, with an average sea temperature of 29°C (84.2°F).

What is the sea water temperature in September in Utila?

In Utila, Honduras, in September, the average water temperature is 29°C (84.2°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.

How many hours of daylight does Utila have in September?

In September, the average day length is 12h and 13min.

When is the sunrise / sunset in September in Utila?

On the first day of September in Utila, sunrise is at 05:34 and sunset at 18:00. On the last day of the month, sunrise is at 05:37 and sunset at 17:37 CST.

How many hours of sunshine does Utila have in September?

In Utila, Honduras, the average sunshine duration in September is 9.1h.

When is the lowest UV index in Utila?

January, February, July, September through December, with an average maximum UV index of 6, are months with the lowest UV index in Utila.

How high is the UV index in September in Utila?

In September, the average daily maximum UV index in Utila, Honduras, is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation.

Average temperature in September
Utila, Honduras

Average temperature in September - Utila, Honduras
  • Average high temperature in September: 28.7°C

The warmest month (with the highest average high temperature) is April (29°C).
The month with the lowest average high temperature is January (24.9°C).

  • Average low temperature in September: 23.3°C

The months with the highest average low temperature are May, June and September (23.3°C).
The coldest month (with the lowest average low temperature) is January (19.8°C).

Average pressure in September
Utila, Honduras

Average pressure in September - Utila, Honduras
  • Average pressure in September: 1011.8mbar

The month with the highest atmospheric pressure is January (1016.2mbar).
The month with the lowest atmospheric pressure is September (1011.8mbar).

Average wind speed in September
Utila, Honduras

Average wind speed in September - Utila, Honduras
  • Average wind speed in September: 9.2km/h

The windiest month (with the highest average wind speed) is July (11.9km/h).
The calmest month (with the lowest average wind speed) is November (8.4km/h).

Average humidity in September
Utila, Honduras

Average humidity in September - Utila, Honduras
  • Average humidity in September: 81%

The months with the highest relative humidity are January and November (83%).
The month with the lowest relative humidity is April (76%).

Average rainfall in September
Utila, Honduras

Average rainfall in September - Utila, Honduras
  • Average rainfall in September: 112mm

The wettest month (with the highest rainfall) is October (135mm).
The driest month (with the least rainfall) is April (45mm).

Average rainfall days in September
Utila, Honduras

Average rainfall days in September - Utila, Honduras
  • Average rainfall days in September: 27.5 days

The month with the highest number of rainy days is July (28.7 days).
The month with the least rainy days is February (15.7 days).

Average sea temperature in September
Utila, Honduras

Average sea temperature in September - Utila, Honduras
  • Average sea temperature in September: 29°C

The best months for swimming (with the highest average sea temperature) are June, July, August, September and October (29°C).
The coldest months (with the lowest average sea temperature) are January, February, March, April and December (27°C).

Average daylight in September /
Average sunshine in September
Utila, Honduras

Average daylight in September / Average sunshine in September - Utila, Honduras
  • Average daylight in September: 12h and 1min

The month with the longest days is June (Average daylight: 13h and 6min).
The month with the shortest days is December (Average daylight: 11h and 12min).

  • Average sunshine in September: 9h and 1min

The months with the most sunshine are April and August (Average sunshine: 11h and 18min).
The month with the least sunshine is January (Average sunshine: 5h and 54min).

Average sunshine days in September
Utila, Honduras

Average sunshine days in September - Utila, Honduras
  • Average sunshine days in September: 1.4 days

The month with the most sunshine days is March (11.7 days).
The month with the least sunshine days is July (1.3 days).

Average UV index in September
Utila, Honduras

Average UV index in September - Utila, Honduras
  • Average UV index in September: 6

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

Average cloud cover in September
Utila, Honduras

Average cloud cover in September - Utila, Honduras
  • Average cloud cover in September: 31

The month with the most cloud cover is November (Cloud cover 42).
The month with the least cloud cover is April (Cloud cover 23).

Average visibility in September
Utila, Honduras

Average visibility in September - Utila, Honduras
  • 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).

Utila, Honduras

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