September Weather in Thames, New Zealand

Last updated: August 31, 2025

In September, the average temperature in Thames, New Zealand hovers around 12°C (54°F). It's a month where you can expect a minimum of 1°C (34°F) and a maximum reaching up to 20°C (68°F). With 115 mm (4.5 in) of precipitation spread over approximately 15 days, be prepared for some rainy spells. Humidity remains high at around 77%, making it a cozy yet damp time of year.

September Temperature in Thames

In September in Thames, the average temperature is 12°C (54°F). Maximums can reach 20°C (68°F), while minimums can drop as low as 1°C (34°F). Travelers should be prepared for a mix of mild days and cooler nights during this time.

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

The chart illustrates September temperature patterns in Thames, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Thames, September typically has an average temperature of 12°C (54°F), with highs reaching up to 20°C (68°F) and lows dropping to around 1°C (34°F).

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

September Precipitation in Thames

In Thames in September, the total precipitation amount is 115 mm (4.5 in) over a span of 15 days.

September Precipitation Trends in Thames

The chart displays monthly precipitation patterns in Thames, 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 Thames, September typically receives around 115 mm (4.5 inches) of precipitation spread over approximately 15 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

September Humidity in Thames

In Thames in September, humidity is 77%. With an average temperature of 12°C (54°F), this humidity feels like a damp chill that wraps around you, making your travels a little more uncomfortable and requiring you to dress in layers to stay warm and dry.

September Average Humidity in Thames

This chart illustrates the average monthly humidity levels in Thames, 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 Thames is approximately 77%, 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 Thames

In Thames in September, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Thames.

Maximum UV Index Levels in Thames for September

The chart shows the monthly maximum UV Index (UVI) for Thames 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 Thames typically reaches 7, which falls under the high exposure category.

Data source: Thames 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 Thames Compares to Other Months

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

This table compares monthly weather conditions in Thames, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	20°C (68°F)	55 mm (2.2 inches)	75%	extreme
February Weather	20°C (69°F)	76 mm (3.0 inches)	73%	extreme
March Weather	19°C (66°F)	92 mm (3.6 inches)	73%	very high
April Weather	16°C (61°F)	110 mm (4.3 inches)	73%	high
May Weather	13°C (56°F)	81 mm (3.2 inches)	79%	moderate
June Weather	11°C (53°F)	100 mm (3.9 inches)	81%	moderate
July Weather	10°C (51°F)	103 mm (4.0 inches)	82%	moderate
August Weather	11°C (52°F)	113 mm (4.5 inches)	79%	moderate
September Weather	12°C (54°F)	115 mm (4.5 inches)	77%	high
October Weather	14°C (58°F)	93 mm (3.7 inches)	76%	very high
November Weather	16°C (62°F)	89 mm (3.5 inches)	75%	extreme
December Weather	19°C (66°F)	95 mm (3.7 inches)	74%	extreme