Guadalcanal Weather in September

Average temperatures, rainfall, sunshine and the best places to visit in Guadalcanal, Solomon Islands in September.

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Honiara

Planning a journey to Guadalcanal, Solomon Islands this September and curious over the weather conditions to await? Your essential details are found on this page, answering your query:

What to Expect in Guadalcanal in September

Guadalcanal, Solomon Islands is a region in Solomon Islands. September in Guadalcanal generally has warm temperatures, with heavy precipitation.

Temperatures

You can expect warm maximum daytime temperatures of around 28°C (82°F) and nighttime temperatures around 24°C (75°F) in Honiara.

For a closer look at conditions across Guadalcanal, Solomon Islands, refer to the map below.

Precipitation

September is a very rainy month with an average rainfall of around 223 mm (8.8 in) in Honiara.

Average sunshine

Sunshine is generally plentiful throughout many areas. Honiara enjoys about 193 hours of sunlight, ideal for those seeking sunny weather.

Explore Guadalcanal by month

Pick a month to see the average temperature, rainfall and sunshine in Guadalcanal — and find the best time to visit. (based on Honiara)

January29°C (84°F) February29°C (84°F) March29°C (84°F) April29°C (84°F) May28°C (82°F) June28°C (82°F) This monthJuly28°C (82°F) August28°C (82°F) September28°C (82°F) October28°C (82°F) November29°C (84°F) December29°C (84°F)
Best Time to Visit Guadalcanal →

Best Places to Visit in Guadalcanal in September

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

Conditions Temperatures Precipitation
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 Guadalcanal

What is the weather like in September for the most popular destinonation in Guadalcanal, Solomon Islands?

Honiara

In September Honiara generally has high temperatures with maximum daytime temperatures around 28°C (82°F), minimum nighttime temperatures around 24°C (75°F) and heavy monthly rainfall. So on average the conditions are unpleasant that month.

« August
September
October »
August
September
October
Max temperature
28°C (82°F)
28°C (82°F)
28°C (82°F)
Min temperature
24°C (75°F)
24°C (75°F)
24°C (75°F)
Monthly sun hours
205 hours
193 hours
228 hours
Monthly rainfall
199 mm (7.8 in)
223 mm (8.8 in)
276 mm (11 in)
Monthly rainy days
14 days
15 days
15 days
Weather conditions
tolerable
unpleasant
poor
Climate in Honiara →

Is your destination not in the list? Have a look at all destinations in Guadalcanal, in Solomon Islands.

Guadalcanal weather in September: frequently asked questions

What is the weather like in Guadalcanal, Solomon Islands in September?

In September, Guadalcanal, Solomon Islands generally has unpleasant weather conditions. Honiara sees daytime temperatures near 28°C (82°F), with nights cooling to roughly 24°C (75°F).

What is the average temperature in Guadalcanal, Solomon Islands in September?

Average temperatures in Guadalcanal, Solomon Islands during September range from a nighttime low near 24°C (75°F) to a daytime high around 28°C (82°F) in Honiara.

Does Guadalcanal, Solomon Islands get a lot of rain in September?

Yes. September brings heavy rainfall to Guadalcanal, Solomon Islands, with Honiara averaging around 223 mm (8.8 in). Expect frequent showers and pack accordingly.

Is September a Good Time to Visit Guadalcanal, Solomon Islands?

In our opinion, September may not be the ideal time to visit Guadalcanal, Solomon Islands due to the typically unpleasant weather in Honiara.

Generally speaking, the best visiting conditions can be found in June and August offering mostly tolerable weather in Honiara. On the other hand, the weather in January, February, March, April, October, November and December tend to be poor.

Interested in more climate information?

We have much more information about the climate in Guadalcanal.

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

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.