September Weather in Stratford, New Zealand

Last updated: August 31, 2025

In September, the average temperature in Stratford, New Zealand hovers around 10°C (51°F), with a minimum dip to 1°C (34°F) and a high of 18°C (65°F). Expect a fair amount of rainfall, with 163 mm (6.4 in) of precipitation spread over about 18 days. Humidity levels are fairly high, averaging around 80%, making this month feel quite damp and cool.

September Temperature in Stratford

In September in Stratford, the average temperature is 10°C (51°F). Maximums can reach 18°C (65°F), while minimums can dip as low as 1°C (34°F). Be prepared for mild days and chilly nights, perfect for layering and enjoying outdoor adventures.

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

The chart illustrates September temperature patterns in Stratford, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Stratford, September typically has an average temperature of 10°C (51°F), with highs reaching up to 18°C (65°F) and lows dropping to around 1°C (34°F).

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

September Precipitation in Stratford

In Stratford in September, the total precipitation amount is 163 mm (6.4 in), spread over a period of 18 days.

September Precipitation Trends in Stratford

The chart displays monthly precipitation patterns in Stratford, 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 Stratford, September typically receives around 163 mm (6.4 inches) of precipitation spread over approximately 18 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 Stratford

In Stratford in September, humidity is 80%. With an average temperature of 10°C (51°F), this humidity feels like a damp layer clinging to the skin, making outdoor activities uncomfortable and requiring travelers to dress in layers to cope with the chill and moisture in the air.

September Average Humidity in Stratford

This chart illustrates the average monthly humidity levels in Stratford, 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 Stratford is approximately 80%, 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 Stratford

In Stratford in September, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Stratford, you can refer to this Hourly UV Index in Stratford.

Maximum UV Index Levels in Stratford for September

The chart shows the monthly maximum UV Index (UVI) for Stratford 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 Stratford typically reaches 6, which falls under the high exposure category.

Data source: Stratford 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 Stratford Compares to Other Months

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

This table compares monthly weather conditions in Stratford, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	18°C (64°F)	86 mm (3.4 inches)	79%	extreme
February Weather	18°C (64°F)	81 mm (3.2 inches)	77%	extreme
March Weather	16°C (62°F)	138 mm (5.4 inches)	75%	very high
April Weather	14°C (57°F)	171 mm (6.7 inches)	76%	high
May Weather	12°C (53°F)	135 mm (5.3 inches)	81%	moderate
June Weather	10°C (50°F)	112 mm (4.4 inches)	83%	moderate
July Weather	9°C (49°F)	176 mm (6.9 inches)	84%	moderate
August Weather	9°C (49°F)	168 mm (6.6 inches)	81%	moderate
September Weather	10°C (51°F)	163 mm (6.4 inches)	80%	high
October Weather	12°C (54°F)	120 mm (4.7 inches)	82%	very high
November Weather	14°C (58°F)	121 mm (4.8 inches)	82%	extreme
December Weather	17°C (62°F)	156 mm (6.1 inches)	80%	extreme