Guadalcanal Weather in August

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

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Honiara

Planning a journey to Guadalcanal, Solomon Islands this August 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 August

Guadalcanal, Solomon Islands is a region in Solomon Islands. August 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.

To explore the conditions in Guadalcanal, Solomon Islands in more detail, check the map below.

Precipitation

August is a very rainy month with an average rainfall of around 199 mm (7.8 in) in Honiara.

Average sunshine

Plenty of sunshine can be expected in numerous places in August. Honiara typically receives 205 hours of sunlight, making it 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) This monthJune28°C (82°F) July28°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 August

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 August for the most popular destinonation in Guadalcanal, Solomon Islands?

Honiara

In August 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 tolerable that month.

« July
August
September »
July
August
September
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
186 hours
205 hours
193 hours
Monthly rainfall
213 mm (8.4 in)
199 mm (7.8 in)
223 mm (8.8 in)
Monthly rainy days
15 days
14 days
15 days
Weather conditions
unpleasant
tolerable
unpleasant
Climate in Honiara →

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

In our records: Solomon Islands August extremes

Notable August records observed across cities in Solomon Islands in our climate database (2003 – 2026). Historic readings can vary in quality, so treat these as illustrative.

  • Based on our data, the coldest August night in Solomon Islands dropped to 18°C (64°F) in Honiara on August 10, 2015.

Guadalcanal weather in August: frequently asked questions

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

In August, Guadalcanal, Solomon Islands generally has tolerable 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 August?

In Honiara, the average daytime high in August is 28°C (82°F), while nighttime temperatures drop to around 24°C (75°F).

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

Expect plenty of rainfall. Honiara records an average of 199 mm (7.8 in) in August, putting it among the wetter months for Guadalcanal, Solomon Islands.

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

We consider August to be one of the best times to travel to Guadalcanal, Solomon Islands. Typically, the climate in Honiara is tolerable. However, the weather conditions may vary depending on your destination.

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