Antalaha in Summer
In summer (December, January and February), Antalaha sees average daytime highs around 30°C and overnight lows near 23°C, with 744 mm of rain over about 76 wet days across the season. It is the warmest season of the year and the wettest season of the year.
Across summer, daytime highs hold fairly steady around 30°C. The sky is clear or mostly clear about 11% of the time across summer, and the air most often feels oppressive.
Summer is Antalaha's weakest season of the year to visit on our travel score. For the whole year in context, see Antalaha's year-round climate.
- Avg daytime high
- 30°C
- warmest season of the year
- Avg overnight low
- 23°C
- Rainfall
- 744 mm
- 76 wet days
- Avg wind
- 8 km/h
- Travel score
- 3.2
- weakest season of the year
- Months
- Dec · Jan · Feb
Temperature in Antalaha in Summer
Across summer, daytime highs hold fairly steady around 30°C.
A typical summer day in Antalaha reaches about 30°C and drops to 23°C overnight. The warmest of the three months is February, the coolest December.
How summer really feels in Antalaha
Once humidity and wind are folded in, summer brings about 85 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.
Antalaha 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 | 30° / 23° | 294 | 28.2 | 12.8 | 3.0 |
| Feb | 30° / 23° | 278 | 24.9 | 12.5 | 3.0 |
| Mar | 29° / 23° | 257 | 25.7 | 12.1 | 3.4 |
| Apr | 29° / 23° | 123 | 19.8 | 11.7 | 4.4 |
| May | 27° / 21° | 66 | 15.9 | 11.3 | 5.8 |
| Jun | 26° / 20° | 55 | 15.4 | 11.1 | 6.1 |
| Jul | 25° / 19° | 66 | 16.4 | 11.2 | 6.1 |
| Aug | 25° / 19° | 53 | 16 | 11.5 | 6.2 |
| Sep | 26° / 19° | 44 | 13.7 | 11.9 | 6.3 |
| Oct | 27° / 20° | 56 | 12.7 | 12.3 | 6.2 |
| Nov | 29° / 22° | 70 | 14.5 | 12.7 | 5.1 |
| Dec | 30° / 23° | 173 | 22.8 | 12.9 | 3.7 |
Cloud cover in Summer
The sky is clear or mostly clear about 11% of the time across summer.
Chance of precipitation in Summer
Antalaha gets around 744 mm of rain over 76 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 8 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 12 h 48 min in early December to 12 h 18 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 5.7 kWh/m².
Hazard calendar for Antalaha
In summer, Antalaha overlaps its cyclone and monsoon season. The full year is below, with each hazard's peak months called out.
Antalaha sits in the South Indian Ocean cyclone belt; the season peaks January–March.
Antalaha's monsoon runs December–March, when most of the year's rain falls.
Is summer a good time to visit Antalaha?
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 weaker month for outdoor sightseeing in Antalaha.
What to pack for Antalaha in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Antalaha sees daytime highs around 30°C and nights near 23°C. Pack light clothes, rain gear and sun protection. About 76 days see rain.
Sea temperature near Antalaha in Summer
The nearest coast averages about 28°C across summer — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea offshore is warmest in February at about 29°C and coldest in August near 24°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 | 28 | 27 | 26 | 25 | 24 | 25 | 25 | 27 | 28 |
| Comfort | Tropical | Tropical | Tropical | Tropical | Warm | Warm | Warm | Warm | Warm | Warm | Warm | Warm |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 29 | Tropical |
| Feb | 29 | Tropical |
| Mar | 29 | Tropical |
| Apr | 28 | Tropical |
| May | 27 | Warm |
| Jun | 26 | Warm |
| Jul | 25 | Warm |
| Aug | 24 | Warm |
| Sep | 25 | Warm |
| Oct | 25 | Warm |
| Nov | 27 | Warm |
| Dec | 28 | Warm |
UV index in Antalaha in Summer
Clear-sky midday UV across summer averages around 15 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Antalaha peaks around January 21 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 at about 8 (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) | 15 | 15 | 14 | 11 | 10 | 8 | 8 | 10 | 12 | 13 | 13 | 14 |
| Level | Extreme | Extreme | Extreme | Extreme | Very high | Very high | Very high | Extreme | Extreme | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 15 | Extreme |
| Feb | 15 | Extreme |
| Mar | 14 | Extreme |
| Apr | 11 | Extreme |
| May | 10 | Very high |
| Jun | 8 | Very high |
| Jul | 8 | Very high |
| Aug | 10 | Extreme |
| Sep | 12 | Extreme |
| Oct | 13 | Extreme |
| Nov | 13 | Extreme |
| Dec | 14 | Extreme |
Air quality in Antalaha 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 Antalaha is worst in December — around 22 µg/m³ PM2.5 (moderate), about 3.5× the cleanest month (September, 6 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) | 10 | 6 | 7 | 7 | 7 | 8 | 7 | 7 | 6 | 6 | 14 | 22 |
| Level | Good | Good | Good | Good | Good | Good | Good | Good | Good | Good | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 10 | Good |
| Feb | 6 | Good |
| Mar | 7 | Good |
| Apr | 7 | Good |
| May | 7 | Good |
| Jun | 8 | Good |
| Jul | 7 | Good |
| Aug | 7 | Good |
| Sep | 6 | Good |
| Oct | 6 | Good |
| Nov | 14 | Moderate |
| Dec | 22 | Moderate |
Where is Antalaha?
Antalaha sits at 14.9°S, 50.3°E, 13 m above sea level, in Madagascar. The nearest listed city is Ampahana, 18 km away.
Topography around Antalaha
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Antalaha.
Within 3 km, the terrain around Antalaha has only modest variations in elevation — a maximum elevation change of 138 m around an average of 19 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 530 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,083 m.
The land around Antalaha is covered by water (43%) and trees (37%) within 3 km, water (48%) and trees (39%) within 16 km, and trees (55%) and water (35%) within 80 km.
Madagascar travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type C / E
- 220 V · 50 Hz
- Prices
- ≈ 31% of US
- price level, 2025
- GDP per capita
- $599
- 2025
- Happiness
- 4.2 / 10
- World Happiness, 2025
- Safe drinking water
- 22%
- of population, 2024
- Road deaths
- 29.2
- per 100k/yr, 2019
- Income group
- Low
- World Bank
- English
- Low
- EF EPI 457
- 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 Antalaha (-14.9003°, 50.2788°, elevation 13 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.