Vanimo, Papua New Guinea experiences average highs of 29°C (84°F) and lows of 25°C (77°F) throughout the year. Rainfall is frequent, averaging about 28 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.
Vanimo, Papua New Guinea Weather & Climate 2026
Monthly climate averages for Vanimo, Papua New Guinea. Based on 10-year ERA5 reanalysis data.
Climate Overview
Drier season: Feb–Nov 
Wetter season: Jan–Dec At-a-Glance Climate Summary
Live Weather & Air Quality
Key figures
Climate Score
2/10
Annual
UV Index
8
High
Temperature 29°C / 25°C
Feels Like 36°C / 30°C
Rainy Days 28
Rainfall 300 mm
Sunshine 9 h
Humidity 89%
Wind Speed 9 km/h
Dew Point 25°C
Hottest Month
30°C
November
Avg Low 25°C
Rain 28 days
Coldest Month
25°C
July
Avg High 29°C
Rain 27 days
Driest Month
24 days
September
Avg High 29°C
Avg Low 25°C
Windiest Month
11 km/h
February (Gusts 31)
Sea Temperature
29°C – 30°C
Warmest water: May (
30.3°C
)
Sun Position
Sunrise 06:36
Daylight 12h
Sunset 18:34
Live conditions —
Vanimo on the map · live conditions
Vanimo, Papua New Guinea
- Continent
- Oceania
- Country
- Papua New Guinea
- City
- Vanimo
- Population
- 11.2K
- Coordinates
- -2.68°, 141.30°
Seasonal Breakdown
Spring
Sep–Nov
Avg High 29°C
Avg Low 25°C
Rain 27 days/mo
Summer
Dec–Feb
Avg High 29°C
Avg Low 25°C
Rain 29 days/mo
Autumn
Mar–May
Avg High 29°C
Avg Low 25°C
Rain 29 days/mo
Winter
Jun–Aug
Avg High 29°C
Avg Low 25°C
Rain 27 days/mo
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: 29°C / 25°C . Feb: 29°C / 25°C . Mar: 29°C / 25°C . Apr: 29°C / 25°C . May: 29°C / 25°C . Jun: 29°C / 25°C . Jul: 29°C / 25°C . Aug: 29°C / 25°C . Sep: 29°C / 25°C . Oct: 29°C / 25°C . Nov: 30°C / 25°C . Dec: 29°C / 25°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 323 mm. Feb: 330 mm. Mar: 370 mm. Apr: 358 mm. May: 271 mm. Jun: 246 mm. Jul: 280 mm. Aug: 228 mm. Sep: 224 mm. Oct: 262 mm. Nov: 325 mm. Dec: 379 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 88%. Feb: 88%. Mar: 89%. Apr: 89%. May: 89%. Jun: 90%. Jul: 90%. Aug: 88%. Sep: 88%. Oct: 88%. Nov: 88%. Dec: 89%.
Monthly Wind Speed
Wind Speed Gusts
Bar chart showing monthly wind speed. Jan: 10 km/h . Feb: 11 km/h . Mar: 10 km/h . Apr: 9 km/h . May: 8 km/h . Jun: 9 km/h . Jul: 8 km/h . Aug: 9 km/h . Sep: 9 km/h . Oct: 8 km/h . Nov: 8 km/h . Dec: 10 km/h .
Sunshine
Sunshine
Sunshine: Jan: 9h. Feb: 8h. Mar: 8h. Apr: 9h. May: 9h. Jun: 9h. Jul: 8h. Aug: 9h. Sep: 9h. Oct: 9h. Nov: 9h. Dec: 8h.
Sea Temperature
Sea Temperature
Line chart showing monthly sea temperature. Jan: 30°C . Feb: 29°C . Mar: 30°C . Apr: 30°C . May: 30°C . Jun: 30°C . Jul: 30°C . Aug: 30°C . Sep: 30°C . Oct: 30°C . Nov: 30°C . Dec: 30°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 7. Aug: UV 8. Sep: UV 8. Oct: UV 8. Nov: UV 8. Dec: UV 7.
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 43 mm.
2016 to 2025
Avg high Avg rainfall
Climate summary
| Last 12 months | All years | |
|---|---|---|
| Hottest month | Jan 2025 · 30°C | Nov · 30°C |
| Coldest month | Aug 2025 · 24°C | Jul · 25°C |
| Wettest month | Apr 2025 · 444 mm | Dec · 379 mm |
| Windiest month | Feb 2025 · 11 km/h | Feb · 11 km/h |
Month-by-Month Weather Table
January
Wet 
February
Wet March
Wet April
Wet May
Wet June
Wet July
Wet August
Wet September
Wet October
Wet November
Wet December
Wet | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 29°C / 25°C | 36°C / 31°C | 29days (323 mm) Wet | 9.2h Good | 88% Very Muggy | 7.9 Very High | Wet | View Details |
| February | 29°C / 25°C | 36°C / 30°C | 27days (330 mm) Wet | 8.4h Good | 88% Very Muggy | 8 Very High | Wet | View Details |
| March | 29°C / 25°C | 36°C / 30°C | 29days (370 mm) Wet | 8.4h Good | 89% Very Muggy | 8 Very High | Wet | View Details |
| April | 29°C / 25°C | 36°C / 31°C | 28days (358 mm) Wet | 8.6h Good | 89% Very Muggy | 8 Very High | Wet | View Details |
| May | 29°C / 25°C | 36°C / 31°C | 29days (271 mm) Wet | 9.4h Good | 89% Very Muggy | 7.1 Very High | Wet | View Details |
| June | 29°C / 25°C | 35°C / 30°C | 27days (246 mm) Wet | 8.9h Good | 90% Very Muggy | 7.2 Very High | Wet | View Details |
| July | 29°C / 25°C | 35°C / 30°C | 27days (280 mm) Wet | 8.2h Good | 90% Very Muggy | 7.1 Very High | Wet | View Details |
| August | 29°C / 25°C | 35°C / 30°C | 26days (228 mm) Wet | 9.2h Good | 88% Very Muggy | 7.9 Very High | Wet | View Details |
| September | 29°C / 25°C | 36°C / 30°C | 24days (224 mm) Wet | 9.4h Good | 88% Very Muggy | 8.4 Very High | Wet | View Details |
| October | 29°C / 25°C | 36°C / 30°C | 28days (262 mm) Wet | 9.3h Good | 88% Very Muggy | 8.2 Very High | Wet | View Details |
| November | 30°C / 25°C | 37°C / 31°C | 28days (325 mm) Wet | 8.9h Good | 88% Very Muggy | 8.2 Very High | Wet | View Details |
| December | 29°C / 25°C | 36°C / 31°C | 30days (379 mm) Wet | 8.1h Good | 89% Very Muggy | 7.4 Very High | Wet | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The hottest month in Vanimo is November, with average daytime highs of 30°C (85°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Vanimo is July, with average overnight lows of 25°C (76°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Vanimo is December, averaging 379mm of precipitation across 30 rainy days. An umbrella or waterproof jacket is essential.
The rainy season in Vanimo runs through December, January, March, May, with the heaviest rainfall in December. Based on 10-year averages for Vanimo.
Vanimo receives approximately 106 sunshine hours per year. The sunniest month is May with around 9 hours. Based on climate data for Vanimo.
The annual average UV index in Vanimo is 8, classified as high. SPF 30+ sunscreen, sunglasses, and seeking shade between 10:00–16:00 are strongly recommended.
Average humidity in Vanimo is 89%, 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 30°C (86°F), which is warm and comfortable for swimming and water activities.
Average wind speeds in Vanimo are 9 km/h (6 mph). The windiest month is February with peak winds reaching 11 km/h (7 mph) (gusts up to 31 km/h / 19 mph).
Vanimo averages 0 clear-sky days per month with overall cloud cover around 86%. The clearest skies occur in September.
The annual average dew point in Vanimo is 25°C (77°F), which feels oppressively humid. Expect heavy perspiration during warmer months — stay hydrated and take breaks in air-conditioned spaces.
Vanimo 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 Vanimo ranges from 30°C (86°F) to 36°C (97°F) on average. Humidity and radiant heat mean it often feels warmer than the thermometer reads, especially in summer months.
June is not the best time to visit Vanimo, with a climate score of 2.1/10. Consider visiting during — instead for better conditions.
For June in Vanimo, pack Umbrella, Waterproof jacket, Waterproof shoes, Breathable clothing, Sunscreen (SPF 30+). With average highs of 29°C (83°F) and 27 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.
Last updated: