Wewak in Summer
In summer (December, January and February), Wewak sees average daytime highs around 28°C and overnight lows near 26°C, with 484 mm of rain over about 68 wet days across the season. It is the warmest season of the year and the driest season of the year.
Across summer, daytime highs hold fairly steady around 28°C. The sky is clear or mostly clear about 4% of the time across summer, and the air most often feels oppressive.
Summer is Wewak's best season of the year to visit on our travel score. Wewak has little temperature swing across the year, so its calendar seasons blur — the season framing matters less here than for a place with four distinct seasons. For the whole year in context, see Wewak's year-round climate.
- Avg daytime high
- 28°C
- warmest season of the year
- Avg overnight low
- 26°C
- Rainfall
- 484 mm
- 68 wet days
- Avg wind
- 14 km/h
- Travel score
- 4.1
- best season of the year
- Months
- Dec · Jan · Feb
Temperature in Wewak in Summer
Across summer, daytime highs hold fairly steady around 28°C.
A typical summer day in Wewak reaches about 28°C and drops to 26°C overnight. The warmest of the three months is December, the coolest December.
How summer really feels in Wewak
Once humidity and wind are folded in, summer brings about 39 days that feel above 32°C and 0 that feel at or below 0°C.
The story in summer is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Wewak weather by month
How the three summer months (December, January and February) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 28° / 26° | 143 | 22.1 | 12.2 | 4.3 |
| Feb | 28° / 26° | 156 | 20.7 | 12.1 | 4.2 |
| Mar | 28° / 26° | 184 | 24.1 | 12 | 4.1 |
| Apr | 28° / 26° | 215 | 25.8 | 11.9 | 3.8 |
| May | 28° / 26° | 265 | 27.9 | 11.8 | 3.7 |
| Jun | 28° / 25° | 284 | 26.9 | 11.8 | 3.7 |
| Jul | 27° / 25° | 300 | 26.4 | 11.8 | 4.0 |
| Aug | 27° / 25° | 233 | 24.1 | 11.9 | 4.3 |
| Sep | 27° / 25° | 249 | 24.2 | 12 | 4.2 |
| Oct | 28° / 25° | 224 | 25.8 | 12.1 | 4.0 |
| Nov | 28° / 26° | 214 | 25.9 | 12.2 | 3.8 |
| Dec | 28° / 26° | 184 | 25.3 | 12.2 | 3.9 |
Cloud cover in Summer
The sky is clear or mostly clear about 4% of the time across summer.
Chance of precipitation in Summer
Wewak gets around 484 mm of rain over 68 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 14 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 12 h 12 min in early December to 12 h 06 min by late February. The lit band spans sunrise to sunset each day.
Solar energy in Summer
Average shortwave solar energy reaching the ground each day across summer, about 4.9 kWh/m².
Is summer a good time to visit Wewak?
Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
summer is a reasonable time to visit Wewak for sightseeing.
What to pack for Wewak in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Wewak sees daytime highs around 28°C and nights near 26°C. Pack light clothes and rain gear. Worth having: sun protection. About 68 days see rain.
Sea temperature near Wewak in Summer
The nearest coast averages about 29°C across summer — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 19 km away) is warmest in May at about 30°C and coldest in August near 29°C.
The water stays above 20°C all year — warm enough for a swim any month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 29 | 29 | 29 | 29 | 30 | 29 | 29 | 29 | 29 | 29 | 30 | 29 |
| Comfort | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 29 | Tropical |
| Feb | 29 | Tropical |
| Mar | 29 | Tropical |
| Apr | 29 | Tropical |
| May | 30 | Tropical |
| Jun | 29 | Tropical |
| Jul | 29 | Tropical |
| Aug | 29 | Tropical |
| Sep | 29 | Tropical |
| Oct | 29 | Tropical |
| Nov | 30 | Tropical |
| Dec | 29 | Tropical |
UV index in Wewak in Summer
Clear-sky midday UV across summer averages around 14 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Wewak peaks around March 16 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 23 at about 11 (extreme).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 15 | 15 | 16 | 15 | 12 | 11 | 11 | 12 | 14 | 14 | 14 | 13 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 15 | Extreme |
| Feb | 15 | Extreme |
| Mar | 16 | Extreme |
| Apr | 15 | Extreme |
| May | 12 | Extreme |
| Jun | 11 | Extreme |
| Jul | 11 | Extreme |
| Aug | 12 | Extreme |
| Sep | 14 | Extreme |
| Oct | 14 | Extreme |
| Nov | 14 | Extreme |
| Dec | 13 | Extreme |
Air quality in Wewak in Summer
Average fine-particle pollution (PM2.5) through the year — so you can see where summer falls, not just the annual average.
Air quality in Wewak is worst in August — around 19 µg/m³ PM2.5 (moderate), about 2.6× the cleanest month (December, 7 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 9 | 8 | 8 | 9 | 10 | 11 | 15 | 19 | 18 | 15 | 8 | 7 |
| Level | Good | Good | Good | Good | Good | Good | Moderate | Moderate | Moderate | Moderate | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 9 | Good |
| Feb | 8 | Good |
| Mar | 8 | Good |
| Apr | 9 | Good |
| May | 10 | Good |
| Jun | 11 | Good |
| Jul | 15 | Moderate |
| Aug | 19 | Moderate |
| Sep | 18 | Moderate |
| Oct | 15 | Moderate |
| Nov | 8 | Good |
| Dec | 7 | Good |
Where is Wewak?
Wewak sits at 3.5°S, 143.6°E, 44 m above sea level, in Papua New Guinea. The nearest listed city is Mount Hagen, 265 km away.
Topography around Wewak
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Wewak.
Within 3 km, the terrain around Wewak has only modest variations in elevation — a maximum elevation change of 51 m around an average of 2 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 549 m; within 80 km, large variations in elevation — a maximum elevation change of 1,191 m.
The land around Wewak is covered by water (77%) within 3 km, trees (51%) and water (46%) within 16 km, and water (48%) and trees (36%) within 80 km.
Papua New Guinea travel facts
- Travel advisory
- Level 3
- Reconsider Travel
- Power plugs
- Type I
- 240 V · 50 Hz
- Prices
- ≈ 58% of US
- price level, 2025
- GDP per capita
- $3,020
- 2025
- Homicide rate
- 9.3
- per 100k, 2010
- Road deaths
- 12.6
- per 100k/yr, 2019
- Income group
- Lower middle
- World Bank
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Wewak (-3.5496°, 143.6323°, elevation 44 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.