Rabaul Weather in August
In Rabaul, August brings high daytime temperatures around 29°C (84°F), with nights cooling to 25°C (77°F). Expect quite a bit of rainfall this month.
Rainfall in Rabaul in August
Historically, August sees about 19 days of rain, with a monthly average of 169 mm (6.7 in). Wet weather is a regular and significant part of this month. Frequent days of rain combined with high totals means proper waterproofs are worth packing.
Temperature in Rabaul in August
Rabaul in August gets highs of 29°C (84°F) during the day and drops to 25°C (77°F) at night. Overall, the month follows a fairly predictable daily temperature pattern. With overnight lows of 25°C (77°F), evenings and nights remain warm. Light clothing and an open window or fan can help you sleep comfortably.
Sunshine in Rabaul in August
You can expect a moderate amount of sunlight, with approximately 161 hours. This means a pleasant mix of sun and overcast.
Wind Speed in Rabaul in August
August has wind speeds averaging 3 m/s (6 knots). You can expect comfortable light winds that steadily move flags and feel mild throughout the day. Since this is an average, daily conditions vary from gentle winds to more active breezes.
Average water temperature in August
The water is 28°C (82°F) this month — warm enough that getting in requires no effort at all. Good conditions for swimming, snorkeling, or just floating around.If you favor pleasant temperatures and minimal rainfall, August is one of the best months to visit Rabaul.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Papua New Guinea, check out our Rabaul's climate page.
Rabaul Temperature in August
Min Temperature
25°C (77°F)
Max Temperature
29°C (84°F)
Water Temperature
28°C (82°F)
Chance of Rain
64%
Precipitation
169 mm (6.7 in)
Rainy days
19 days
Humidity
73%
Windspeed
3 m/s (6 knots)
Sunshine
161 hours
Percentage Sunshine
Daily Historical Temperatures
40-year average (1976-2025)
Based on our historical records, temperatures in Rabaul typically stay consistent throughout August, with daily highs averaging around 29°C (84°F). Nights are warm, with lows around 25°C (77°F).
Average temperatures in August
Historical weather for Rabaul in August
Browse day-by-day weather records for Rabaul spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Rabaul historical weather extremes in August
Based on 19 years of weather observations (2006-2025), these are the most extreme conditions recorded in Rabaul.
- On August 5, 2022, temperatures climbed to 32°C (90°F), marking the warmest August day on record.
- Rabaul experienced its chilliest August day on August 23, 2015, reaching only 26°C (79°F).
- The coldest night in August in Rabaul was on August 8, 2014, with a minimum of 19°C (66°F).
Best Places in Papua New Guinea in August
Find out more about the weather in Papua New Guinea and which places have the best travel conditions in this month. See all of Papua New Guinea in August →
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What to Wear in Rabaul in August
Warm but pleasant conditions in Rabaul in August. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. It's going to pour! Pack a good poncho and prepare for very wet conditions. The water temperature sits at about 28°C (82°F), making it perfect for swimming and water activities. Don't forget to pack your favorite swimwear and perhaps some snorkel gear. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.What To Do in Rabaul in August
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Papua New Guinea, check out our Rabaul's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Rabaul climate overview or explore weather in Papua New Guinea.
