Ihu, Papua New Guinea experiences average highs of 29°C (84°F) and lows of 24°C (75°F) throughout the year. Rainfall is frequent, averaging about 25 rainy days per month. Sunshine is abundant, averaging about 9 hours per day. High humidity combined with warm temperatures produces a tropical feel year-round. Average highs have stayed broadly stable across the available records.
Ihu, Papua New Guinea Weather & Climate 2026
Monthly climate averages for Ihu, Papua New Guinea. Based on 10-year ERA5 reanalysis data.
Climate Overview
Drier season: Jan–Dec 
Wetter season: Mar–Oct At-a-Glance Climate Summary
Live Weather & Air Quality
Key figures
Climate Score
2.9/10
Best: July, August, September
UV Index
8
High
Temperature 29°C / 24°C
Feels Like 35°C / 29°C
Rainy Days 25
Rainfall 250 mm
Sunshine 9 h
Humidity 88%
Wind Speed 11 km/h
Dew Point 24°C
Hottest Month
30°C
January
Avg Low 24°C
Rain 25 days
Coldest Month
23°C
August
Avg High 28°C
Rain 23 days
Driest Month
23 days
August
Avg High 28°C
Avg Low 23°C
Windiest Month
14 km/h
August (Gusts 33)
Sea Temperature
28°C – 31°C
Warmest water: February (
30.8°C
)
Worst Time to Visit
Consider avoiding January, March, November, December due to extreme heat, heavy rainfall, oppressive humidity.
Sun Position
Sunrise 06:33
Daylight 11.7h
Sunset 18:16
Live conditions —
Ihu on the map · live conditions
Ihu, Papua New Guinea
- Continent
- Oceania
- Country
- Papua New Guinea
- City
- Ihu
- Population
- 712
- Coordinates
- -7.90°, 145.39°
Seasonal Breakdown
Spring
Sep–Nov
Avg High 29°C
Avg Low 24°C
Rain 25 days/mo
1/3 best months
Summer
Dec–Feb
Avg High 30°C
Avg Low 24°C
Rain 25 days/mo
Autumn
Mar–May
Avg High 29°C
Avg Low 24°C
Rain 27 days/mo
Winter
Jun–Aug
Avg High 28°C
Avg Low 24°C
Rain 24 days/mo
2/3 best months
Climate Charts
Based on historical averages (2016–2025)
Monthly Temperatures
High Low Shaded bands show the typical range across the available yearly records.
Line chart showing monthly temperatures. Jan: 30°C / 24°C . Feb: 30°C / 24°C . Mar: 30°C / 24°C . Apr: 29°C / 24°C . May: 29°C / 24°C . Jun: 28°C / 24°C . Jul: 28°C / 24°C . Aug: 28°C / 23°C . Sep: 28°C / 24°C . Oct: 29°C / 24°C . Nov: 30°C / 24°C . Dec: 30°C / 24°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 270 mm. Feb: 271 mm. Mar: 326 mm. Apr: 347 mm. May: 253 mm. Jun: 239 mm. Jul: 180 mm. Aug: 172 mm. Sep: 241 mm. Oct: 219 mm. Nov: 227 mm. Dec: 259 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 87%. Feb: 87%. Mar: 89%. Apr: 90%. May: 89%. Jun: 89%. Jul: 88%. Aug: 87%. Sep: 88%. Oct: 88%. Nov: 87%. Dec: 87%.
Monthly Wind Speed
Wind Speed Gusts
Bar chart showing monthly wind speed. Jan: 10 km/h . Feb: 10 km/h . Mar: 10 km/h . Apr: 10 km/h . May: 11 km/h . Jun: 11 km/h . Jul: 12 km/h . Aug: 14 km/h . Sep: 14 km/h . Oct: 12 km/h . Nov: 11 km/h . Dec: 10 km/h .
Sunshine
Sunshine
Sunshine: Jan: 9h. Feb: 9h. Mar: 9h. Apr: 8h. May: 9h. Jun: 9h. Jul: 8h. Aug: 9h. Sep: 9h. Oct: 10h. Nov: 10h. Dec: 9h.
Sea Temperature
Sea Temperature swim
Line chart showing monthly sea temperature. Jan: 31°C . Feb: 31°C . Mar: 31°C . Apr: 31°C . May: 30°C . Jun: 29°C . Jul: 28°C . Aug: 28°C . Sep: 28°C . Oct: 29°C . Nov: 30°C . Dec: 31°C .
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 8. Feb: UV 8. Mar: UV 8. Apr: UV 8. May: UV 7. Jun: UV 7. Jul: UV 6. Aug: UV 7. Sep: UV 8. Oct: UV 8. Nov: UV 9. Dec: UV 8.
Monthly Daylight Hours
Daylight 12h reference
Monthly Dew Point & Comfort
Dew Point Dry Comfortable Humid Muggy
Climate Trends
Average highs have stayed broadly stable across the available records. Average rainfall is trending drier by about 61 mm.
2016 to 2025
Avg high Avg rainfall
Climate summary
| Last 12 months | All years | |
|---|---|---|
| Hottest month | Dec 2025 · 31°C | Jan · 30°C |
| Coldest month | Sep 2025 · 24°C | Aug · 23°C |
| Wettest month | Apr 2025 · 325 mm | Apr · 347 mm |
| Windiest month | Aug 2025 · 15 km/h | Aug · 14 km/h |
Month-by-Month Weather Table
January
Wet 
February
Wet March
Wet April
Wet May
Wet June
Wet July best
Wet August best
Wet September best
Wet October
Wet November
Wet December
Wet | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 30°C / 24°C | 37°C / 29°C | 25days (270 mm) Wet | 9.1h Good | 87% Very Muggy | 8.1 Very High | Wet | View Details |
| February | 30°C / 24°C | 37°C / 29°C | 24days (271 mm) Wet | 8.5h Good | 87% Very Muggy | 8 Very High | Wet | View Details |
| March | 30°C / 24°C | 36°C / 29°C | 27days (326 mm) Wet | 8.5h Good | 89% Very Muggy | 8.4 Very High | Wet | View Details |
| April | 29°C / 24°C | 36°C / 29°C | 27days (347 mm) Wet | 8.2h Good | 90% Very Muggy | 7.7 Very High | Wet | View Details |
| May | 29°C / 24°C | 35°C / 29°C | 26days (253 mm) Wet | 8.6h Good | 89% Very Muggy | 6.7 High | Wet | View Details |
| June | 28°C / 24°C | 34°C / 29°C | 24days (239 mm) Wet | 8.6h Good | 89% Very Muggy | 6.5 High | Wet | View Details |
| July best | 28°C / 24°C | 33°C / 28°C | 24days (180 mm) Wet | 8.2h Good | 88% Very Muggy | 6.2 High | Wet | View Details |
| August best | 28°C / 23°C | 32°C / 28°C | 23days (172 mm) Wet | 8.5h Good | 87% Very Muggy | 7.1 Very High | Wet | View Details |
| September best | 28°C / 24°C | 34°C / 28°C | 25days (241 mm) Wet | 8.5h Good | 88% Very Muggy | 7.6 Very High | Wet | View Details |
| October | 29°C / 24°C | 36°C / 29°C | 26days (219 mm) Wet | 9.5h Good | 88% Very Muggy | 8.2 Very High | Wet | View Details |
| November | 30°C / 24°C | 37°C / 29°C | 23days (227 mm) Wet | 10h Excellent | 87% Very Muggy | 8.5 Very High | Wet | View Details |
| December | 30°C / 24°C | 37°C / 30°C | 25days (259 mm) Wet | 9.4h Good | 87% Very Muggy | 8.4 Very High | Wet | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Ihu are July, August, September, when temperatures are comfortable and rainfall is at its lowest. This is based on 10-year climate averages for Ihu, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Ihu is January, with average daytime highs of 30°C (86°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Ihu is August, with average overnight lows of 23°C (74°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Ihu is April, averaging 347mm of precipitation across 27 rainy days. An umbrella or waterproof jacket is essential.
The rainy season in Ihu runs through March, April, May, October, with the heaviest rainfall in March. Based on 10-year averages for Ihu.
Ihu receives approximately 106 sunshine hours per year. The sunniest month is November with around 10 hours. Based on climate data for Ihu.
The least favorable months to visit Ihu are January, March, November, December, primarily due to extreme heat, heavy rainfall, oppressive humidity. For the best conditions, consider July, August, September instead.
The annual average UV index in Ihu is 8, classified as high. SPF 30+ sunscreen, sunglasses, and seeking shade between 10:00–16:00 are strongly recommended.
Average humidity in Ihu is 88%, classified as humid. High humidity makes warm temperatures feel significantly hotter — lightweight, breathable clothing is recommended.
Yes — sea temperatures in January, February, March, April, May, June, July, August, September, October, November, December average 29°C (84°F), which is warm and comfortable for swimming and water activities.
Average wind speeds in Ihu are 11 km/h (7 mph). The windiest month is August with peak winds reaching 14 km/h (9 mph) (gusts up to 33 km/h / 20 mph).
Ihu averages 0 clear-sky days per month with overall cloud cover around 88%. The clearest skies occur in May.
The annual average dew point in Ihu is 24°C (75°F), which feels oppressively humid. Expect heavy perspiration during warmer months — stay hydrated and take breaks in air-conditioned spaces.
Ihu has a Tropical Rainforest climate, classified as Af under the Köppen system. Tropical climates are warm year-round with high rainfall and temperatures rarely dropping below 18°C (64°F).
The 'feels like' temperature in Ihu ranges from 29°C (84°F) to 35°C (95°F) on average. Humidity and radiant heat mean it often feels warmer than the thermometer reads, especially in summer months.
July is not the best time to visit Ihu, with a climate score of 5.3/10. Consider visiting during July, August, September instead for better conditions.
For July in Ihu, pack Umbrella, Waterproof jacket, Waterproof shoes, Breathable clothing, Sunscreen (SPF 30+). With average highs of 28°C (82°F) and 24 rainy days, these essentials will keep you comfortable.
Data Source
Climate data derived from ERA5 reanalysis (ECMWF), averaged over 2016–2025. Sea surface temperature from marine reanalysis data. Climate scores and seasonal estimates are computed by WorldStats.
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