September Weather in Sayyan, Yemen

Last updated: August 28, 2025

In Sayyan, Yemen, the average temperature in September hovers around 21°C (69°F), with delightful warm days reaching a maximum of 29°C (85°F) and cooler nights dropping to a minimum of 12°C (54°F). Expect about 25 mm (1.0 in) of precipitation over 7 days, contributing to an overall average humidity of 63%.

September Temperature in Sayyan

In September in Sayyan, the average temperature is 21°C (69°F). Maximums can reach 29°C (85°F), while minimums can drop to as low as 12°C (54°F). This mild weather makes it an ideal time for outdoor activities and exploring the attractions in the area.

September Weather in Sayyan: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Sayyan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sayyan, September typically has an average temperature of 21°C (69°F), with highs reaching up to 29°C (85°F) and lows dropping to around 12°C (54°F).

Data source: Temperature data for Sayyan generated using information from the Copernicus Climate Change Service.

September Precipitation in Sayyan

In Sayyan in September, the precipitation amount is 25 mm (1.0 in) over the course of 7 days.

September Precipitation Trends in Sayyan

The chart displays monthly precipitation patterns in Sayyan, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Sayyan, September typically receives around 25 mm (1.0 inches) of precipitation spread over approximately 7 days.

Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

September Humidity in Sayyan

In Sayyan in September humidity is 63%. With an average temperature of 21°C (69°F), this humidity feels like a warm embrace, making it a comfortable experience for traveling, but you might want to stay hydrated and take occasional breaks in shaded areas to truly enjoy the sights.

September Average Humidity in Sayyan

This chart illustrates the average monthly humidity levels in Sayyan, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Sayyan is approximately 63%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Sayyan

In Sayyan in September, the maximum UV index is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in Sayyan, you can check here.

Maximum UV Index Levels in Sayyan for September

The chart shows the monthly maximum UV Index (UVI) for Sayyan in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In September, the maximum UV index in Sayyan typically reaches 14, which falls under the extreme exposure category.

Data source: Sayyan September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How September Weather in Sayyan Compares to Other Months

Weather in Sayyan varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Sayyan, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Sayyan, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	15°C (59°F)	4 mm (0.1 inches)	48%	extreme
February Weather	16°C (61°F)	13 mm (0.5 inches)	49%	extreme
March Weather	18°C (64°F)	12 mm (0.5 inches)	36%	extreme
April Weather	19°C (66°F)	59 mm (2.3 inches)	37%	extreme
May Weather	20°C (69°F)	74 mm (2.9 inches)	45%	extreme
June Weather	22°C (72°F)	22 mm (0.9 inches)	46%	extreme
July Weather	21°C (70°F)	64 mm (2.5 inches)	54%	extreme
August Weather	20°C (68°F)	118 mm (4.6 inches)	73%	extreme
September Weather	21°C (69°F)	25 mm (1.0 inches)	63%	extreme
October Weather	18°C (64°F)	25 mm (1.0 inches)	63%	extreme
November Weather	16°C (61°F)	4 mm (0.1 inches)	63%	extreme
December Weather	14°C (58°F)	4 mm (0.2 inches)	56%	very high