Marlborough Sounds Weather in September

Average temperatures, rainfall, sunshine and the best places to visit in the Marlborough Sounds, New Zealand in September.

Thinking about venturing to the Marlborough Sounds, New Zealand this September and curious about the weather conditions to expect? This page holds all the key information you seek, responding to your question:

What to Expect in the Marlborough Sounds in September

The Marlborough Sounds, New Zealand is a region in New Zealand. September in the Marlborough Sounds generally has mild temperatures, with precipitation levels ranging from moderate to high.

Temperatures

You can expect mild maximum daytime temperatures of around 15°C (59°F) and nighttime temperatures around 8°C (46°F) in Picton.

For specific regional insights in the Marlborough Sounds, New Zealand, refer to the map provided below.

Precipitation

In September, precipitation varies across different areas. From moderate rainfall in Endeavour Inlet with an average of 82 mm (3.2 in) to high rainfall in Wairau Valley with 124 mm (4.9 in).

Average sunshine

Sunshine levels are moderate in most locations. Picton typically sees 189 hours of sunlight, creating comfortable conditions that aren't too bright or too dim. Looking for something sunnier? Our weather planner helps you discover destinations with more reliable sunshine.

Explore the Marlborough Sounds by month

Best Places to Visit in the Marlborough Sounds in September

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across the Marlborough Sounds.

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in the Marlborough Sounds

What is the weather like in September for some of the most popular destinations in the Marlborough Sounds, New Zealand?

Temperature range in the Marlborough Sounds (September)

Precipitation variation in the Marlborough Sounds (September)

Picton

In September Picton generally has moderate temperatures with maximum daytime temperatures around 15°C (59°F), minimum nighttime temperatures around 8°C (46°F) and moderate monthly rainfall. So on average the conditions are tolerable that month.

August
September
October
Max temperature
13°C (55°F)
15°C (59°F)
16°C (61°F)
Min temperature
6°C (43°F)
8°C (46°F)
9°C (48°F)
Monthly sun hours
184 hours
189 hours
240 hours
Monthly rainfall
83 mm (3.3 in)
85 mm (3.3 in)
91 mm (3.6 in)
Monthly rainy days
12 days
12 days
12 days
Weather conditions

Blenheim

In September Blenheim generally has moderate temperatures with maximum daytime temperatures around 15°C (59°F), minimum nighttime temperatures around 6°C (43°F) and moderate monthly rainfall. So on average the conditions are tolerable that month.

August
September
October
Max temperature
13°C (55°F)
15°C (59°F)
17°C (63°F)
Min temperature
5°C (41°F)
6°C (43°F)
8°C (46°F)
Monthly sun hours
184 hours
189 hours
240 hours
Monthly rainfall
81 mm (3.2 in)
84 mm (3.3 in)
93 mm (3.7 in)
Monthly rainy days
10 days
10 days
10 days
Weather conditions

Anakiwa

In September Anakiwa generally has moderate temperatures with maximum daytime temperatures around 15°C (59°F), minimum nighttime temperatures around 7°C (45°F) and moderate monthly rainfall. So on average the conditions are tolerable that month.

August
September
October
Max temperature
13°C (55°F)
15°C (59°F)
17°C (63°F)
Min temperature
5°C (41°F)
7°C (45°F)
8°C (46°F)
Monthly sun hours
184 hours
189 hours
240 hours
Monthly rainfall
90 mm (3.5 in)
95 mm (3.7 in)
101 mm (4 in)
Monthly rainy days
12 days
12 days
12 days
Weather conditions

Renwick

In September Renwick generally has moderate temperatures with maximum daytime temperatures around 15°C (59°F), minimum nighttime temperatures around 5°C (41°F) and moderate monthly rainfall. So on average the conditions are tolerable that month.

August
September
October
Max temperature
13°C (55°F)
15°C (59°F)
17°C (63°F)
Min temperature
3°C (37°F)
5°C (41°F)
7°C (45°F)
Monthly sun hours
184 hours
189 hours
240 hours
Monthly rainfall
92 mm (3.6 in)
97 mm (3.8 in)
108 mm (4.3 in)
Monthly rainy days
9 days
9 days
10 days
Weather conditions

Havelock

In September Havelock generally has moderate temperatures with maximum daytime temperatures around 15°C (59°F), minimum nighttime temperatures around 5°C (41°F) and high monthly rainfall. So on average the conditions are unpleasant that month.

August
September
October
Max temperature
13°C (55°F)
15°C (59°F)
17°C (63°F)
Min temperature
4°C (39°F)
5°C (41°F)
7°C (45°F)
Monthly sun hours
184 hours
189 hours
240 hours
Monthly rainfall
101 mm (4 in)
109 mm (4.3 in)
117 mm (4.6 in)
Monthly rainy days
11 days
11 days
12 days
Weather conditions

Is your destination not in the list? Have a look at all destinations in the Marlborough Sounds, in New Zealand.

Popular cities in September

Day & night temperatures, rainfall and average weather in the Marlborough Sounds in September.

City Weather Day temp Night temp Rainfall
Picton 15°C (59°F) 8°C (46°F) 85 mm (3.3 in)
Blenheim 15°C (59°F) 6°C (43°F) 84 mm (3.3 in)
Anakiwa 15°C (59°F) 7°C (45°F) 95 mm (3.7 in)
Renwick 15°C (59°F) 5°C (41°F) 97 mm (3.8 in)
Havelock 15°C (59°F) 5°C (41°F) 109 mm (4.3 in)
Endeavour Inlet 14°C (57°F) 10°C (50°F) 82 mm (3.2 in)

The Marlborough Sounds weather in September: frequently asked questions

What is the weather like in the Marlborough Sounds, New Zealand in September?

In September, the Marlborough Sounds, New Zealand generally has tolerable weather conditions. Picton sees daytime temperatures near 15°C (59°F), with nights cooling to roughly 8°C (46°F).

What is the average temperature in the Marlborough Sounds, New Zealand in September?

Average temperatures in the Marlborough Sounds, New Zealand during September range from a nighttime low near 8°C (46°F) to a daytime high around 15°C (59°F) in Picton.

Does the Marlborough Sounds, New Zealand get a lot of rain in September?

September is on the drier side in the Marlborough Sounds, New Zealand. Picton averages only about 85 mm (3.3 in), with most days staying dry.

Is September a Good Time to Visit the Marlborough Sounds, New Zealand?

Given the typically tolerable weather conditions in Picton, September might be a good time to visit the Marlborough Sounds, New Zealand. However, the weather conditions may vary depending on your destination.

Generally speaking, January, February, March and December provide perfect weather in Picton. The weather in June, July and August, on the other hand, tends to be unpleasant.

Interested in more climate information?

We have much more information about the climate in the Marlborough Sounds.

Weather and climate has detailed information for every country in the world. Are you going to New Zealand? Get detailed historical weather averages for many cities in New Zealand.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

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