Tonga in Fall
In fall (September, October and November), Tonga sees average daytime highs around 27°C and overnight lows near 19°C, with 476 mm of rain over about 70 wet days across the season. It is the 3rd-warmest season and the wettest season of the year.
Over the season highs climb from about 26°C in early September to 29°C by late November. The sky is clear or mostly clear about 5% of the time across fall, and the air most often feels muggy.
Fall is Tonga's 2nd-best season to visit on our travel score. For the whole year in context, see Tonga's year-round climate.
- Avg daytime high
- 27°C
- 3rd-warmest season
- Avg overnight low
- 19°C
- Rainfall
- 476 mm
- 70 wet days
- Avg wind
- 6 km/h
- Travel score
- 4.2
- 2nd-best season
- Months
- Sep · Oct · Nov
Temperature in Tonga in Fall
Over the season highs climb from about 26°C in early September to 29°C by late November.
A typical fall day in Tonga reaches about 27°C and drops to 19°C overnight. The warmest of the three months is November, the coolest October.
How fall really feels in Tonga
Once humidity and wind are folded in, fall brings about 0 days that feel above 32°C and 0 that feel at or below 0°C.
fall sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Tonga weather by month
How the three fall months (September, October and November) 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 | 31° / 19° | 8 | 2.5 | 11.7 | 5.0 |
| Feb | 32° / 20° | 18 | 4.8 | 11.8 | 4.2 |
| Mar | 31° / 20° | 70 | 15.5 | 12 | 3.8 |
| Apr | 29° / 20° | 133 | 22.4 | 12.1 | 3.6 |
| May | 28° / 20° | 147 | 25.4 | 12.2 | 3.8 |
| Jun | 27° / 20° | 140 | 25.7 | 12.3 | 4.0 |
| Jul | 26° / 19° | 142 | 25.6 | 12.3 | 4.2 |
| Aug | 25° / 19° | 171 | 26.2 | 12.2 | 4.1 |
| Sep | 26° / 19° | 207 | 27.9 | 12 | 3.7 |
| Oct | 27° / 19° | 200 | 28.4 | 11.9 | 3.7 |
| Nov | 28° / 19° | 70 | 13.9 | 11.8 | 5.1 |
| Dec | 30° / 19° | 10 | 2.5 | 11.7 | 5.8 |
Cloud cover in Fall
The sky is clear or mostly clear about 5% of the time across fall.
Chance of precipitation in Fall
Tonga gets around 476 mm of rain over 70 wet days across fall. The line is the day-by-day chance of measurable precipitation.
Humidity in Fall
Most of fall feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Fall
Winds average 6 km/h across fall.
Sunrise & sunset in Fall
Daylight runs from about 12 h 06 min in early September to 11 h 42 min by late November. The lit band spans sunrise to sunset each day.
Solar energy in Fall
Average shortwave solar energy reaching the ground each day across fall, about 4.6 kWh/m².
Hazard calendar for Tonga
In fall, Tonga overlaps its rainy season season. The full year is below, with each hazard's peak months called out.
Tonga's rainy season runs April–October, when most of the year's rain falls.
Tonga sees seasonal dust haze (February–April), heaviest in February.
Is fall a good time to visit Tonga?
Our two travel scores rate fall for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
fall is a reasonable time to visit Tonga for sightseeing.
What to pack for Tonga in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Tonga sees daytime highs around 27°C and nights near 19°C. Pack light clothes and rain gear. Worth having: sun protection. About 70 days see rain.
UV index in Tonga in Fall
Clear-sky midday UV across fall averages around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Tonga peaks around April 10 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 9 (very high).
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) | 10 | 11 | 14 | 14 | 13 | 11 | 11 | 12 | 13 | 13 | 11 | 9 |
| Level | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 10 | Very high |
| Feb | 11 | Extreme |
| Mar | 14 | Extreme |
| Apr | 14 | Extreme |
| May | 13 | Extreme |
| Jun | 11 | Extreme |
| Jul | 11 | Extreme |
| Aug | 12 | Extreme |
| Sep | 13 | Extreme |
| Oct | 13 | Extreme |
| Nov | 11 | Extreme |
| Dec | 9 | Very high |
Air quality in Tonga in Fall
Average fine-particle pollution (PM2.5) through the year — so you can see where fall falls, not just the annual average.
Air quality in Tonga is worst in February — around 109 µg/m³ PM2.5 (unhealthy), about 4.9× the cleanest month (August, 22 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) | 85 | 109 | 71 | 54 | 34 | 28 | 23 | 22 | 24 | 35 | 44 | 71 |
| Level | Unhealthy | Unhealthy | Unhealthy | Poor | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Poor | Unhealthy |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 85 | Unhealthy |
| Feb | 109 | Unhealthy |
| Mar | 71 | Unhealthy |
| Apr | 54 | Poor |
| May | 34 | Moderate |
| Jun | 28 | Moderate |
| Jul | 23 | Moderate |
| Aug | 22 | Moderate |
| Sep | 24 | Moderate |
| Oct | 35 | Moderate |
| Nov | 44 | Poor |
| Dec | 71 | Unhealthy |
Where is Tonga?
Tonga sits at 5.0°N, 10.7°E, 809 m above sea level, in Cameroon. The nearest listed city is Bangangté, 27 km away.
Topography around Tonga
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Tonga.
Within 3 km, the terrain around Tonga has only modest variations in elevation — a maximum elevation change of 178 m around an average of 795 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,087 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,002 m.
The land around Tonga is covered by trees (63%) and grassland (30%) within 3 km, trees (78%) and grassland (20%) within 16 km, and trees (80%) within 80 km.
Cameroon travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type C / E
- 220 V · 50 Hz
- Prices
- ≈ 34% of US
- price level, 2025
- GDP per capita
- $1,972
- 2025
- Happiness
- 5.1 / 10
- World Happiness, 2025
- Homicide rate
- 6.8
- per 100k, 2022
- Road deaths
- 30.2
- per 100k/yr, 2019
- Income group
- Lower middle
- World Bank
- English
- Very low
- EF EPI 445
- 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 Tonga (4.9667°, 10.7°, elevation 809 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.