Weather in North Island, New Zealand in September

So you're interested in going to North Island, New Zealand in September

September is a very cold and slightly rainy time for sunbathing in North Island, and not recommended. September is too cold for swimming in North Island for any length of time, unless you have a wetsuit. Consider visiting North Island in the months of January, February, March, December, for the best beach weather. Also consider one of our other suggestions for September.

Temperature in North Island in September

The average maximum temperature in North Island in September is 15°. The average maximum temperature is 14° in the previous month and 16° in the next month.

The average temperature in North Island in September is 12°. The average temperature ranges is 10° in the previous month and 13° in the next month.

The average minimum temperature in North Island in September is . The minimum temperature is in the previous month and 11° in the next month.

Sunshine in North Island in September

The average day light hours per day in North Island in September are 11.8 and there are 5.4 hours of sunshine per day on average during September making it a sunny month that is overcast at times.

The ultraviolet index in North Island in September is typically 5.9 during September. An ultraviolet index reading of 6 to 7 indicates a high risk of harm from unprotected sun exposure. Unprotected skin risks burning in less than 20 minutes. Protection against skin and eye damage is needed. Tanning will be safest before 10am and after 4pm. For those with sensitive skin stay in the shade and wear protective clothing, a wide-brimmed hat, and UV-blocking sunglasses. Generously apply broad spectrum SPF 30+ sunscreen every 2 hours, even on cloudy days. Watch out for relections from water that may increase ultraviolet exposure.

Sea Temperature in North Island in September

The average sea water temperature in North Island in September is 14.6° which is cold for swimming, a full wet suit is required to spend any length of time in the sea.

Rainfall in North Island in September

The average total rainfall in North Island in September is 1.2cm and on average there are 15 rainy days in September making it a slightly wet time to visit the beach.

Humidity in North Island in September

The maximum dew point (an indicator of humidity) in North Island in September is 11° which is very comfortable. The dew point is 10° in the previous month and 11° in the next month.

The average maximum relative humidity in North Island in September is typically 84.8%. The maximum relative humidity is 84.7% in the previous month and 82.6% in the next month.

The average relative humidity in North Island in September is typically 72.5%. The average relative humidity is 73.8% in the previous month and 69.5% in the next month.

Wind Speed in North Island in September

The average maximum wind speed in North Island in September is typically 26kmh. The average maximum wind speed is 24kmh in the previous month and 29kmh in the next month.

The average wind speed in North Island in September is typically 15kmh. The average wind speed is 13kmh in the previous month and 17kmh in the next month.

The average wind direction in North Island in September is from the West.

Monthly Averages

Suggested Beaches in September

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