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September Weather in Macao, Portugal

Last updated: August 27, 2025

In Macao, Portugal, the average temperature in September hovers around 22°C (72°F). However, be prepared for a range of temperatures, with a minimum of 9°C (49°F) and a maximum soaring to 38°C (100°F). During this month, expect approximately 30 mm (1.2 in) of precipitation over about 4 days, and enjoy a comfortable average humidity level of 67%.

September Temperature in Macao

In September in Macao, the average temperature is 22°C (72°F). The maximum can reach 38°C (100°F), while the minimum can drop as low as 9°C (49°F). This makes Macao an ideal destination for travelers seeking warm days and cooler nights.

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

The chart illustrates September temperature patterns in Macao, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Macao, September typically has an average temperature of 22°C (72°F), with highs reaching up to 38°C (100°F) and lows dropping to around 9°C (49°F).
JanFebMarAprMayJunJulAugSepOctNovDec485355586669747572655551
Data source: Temperature data for Macao generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Macao

In Macao in September, the precipitation amount is 30 mm (1.2 in) over the course of 4 days.

September Precipitation Trends in Macao

The chart displays monthly precipitation patterns in Macao, 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 Macao, September typically receives around 30 mm (1.2 inches) of precipitation spread over approximately 4 days.
JanFebMarAprMayJunJulAugSepOctNovDec4362969443175630629373
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Macao

In Macao in September humidity is 67%. With an average temperature of 22°C (72°F), this humidity feels like a warm embrace, creating a tropical ambiance that can be both refreshing and slightly stifling for traveling.

September Average Humidity in Macao

This chart illustrates the average monthly humidity levels in Macao, 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 Macao is approximately 67%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%75%72%70%70%63%60%60%68%74%83%85%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Macao

In Macao in September, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Macao.

Maximum UV Index Levels in Macao for September

The chart shows the monthly maximum UV Index (UVI) for Macao 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 Macao typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec34689111098643
Data source: Macao 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 Macao Compares to Other Months

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

This table compares monthly weather conditions in Macao, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather9°C (48°F)43 mm (1.7 inches)85%moderate
February Weather11°C (53°F)62 mm (2.4 inches)75%moderate
March Weather13°C (55°F)96 mm (3.8 inches)72%high
April Weather15°C (59°F)93 mm (3.7 inches)70%very high
May Weather19°C (66°F)43 mm (1.7 inches)70%very high
June Weather21°C (70°F)17 mm (0.7 inches)63%extreme
July Weather23°C (75°F)5 mm (0.2 inches)60%very high
August Weather24°C (76°F)6 mm (0.2 inches)60%very high
September Weather22°C (72°F)30 mm (1.2 inches)67%very high
October Weather18°C (65°F)62 mm (2.4 inches)74%high
November Weather13°C (55°F)93 mm (3.7 inches)83%moderate
December Weather11°C (52°F)72 mm (2.9 inches)85%moderate

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