Iharan̈a in Summer
In summer (December, January and February), Iharan̈a sees average daytime highs around 29°C and overnight lows near 25°C, with 567 mm of rain over about 68 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 29°C. The sky is clear or mostly clear about 22% of the time across summer, and the air most often feels oppressive.
Summer is Iharan̈a's weakest season of the year to visit on our travel score. Iharan̈a 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 Iharan̈a's year-round climate.
- Avg daytime high
- 29°C
- warmest season of the year
- Avg overnight low
- 25°C
- Rainfall
- 567 mm
- 68 wet days
- Avg wind
- 15 km/h
- Travel score
- 3.9
- weakest season of the year
- Months
- Dec · Jan · Feb
Temperature in Iharan̈a in Summer
Across summer, daytime highs hold fairly steady around 29°C.
A typical summer day in Iharan̈a reaches about 29°C and drops to 25°C overnight. The warmest of the three months is February, the coolest December.
How summer really feels in Iharan̈a
Once humidity and wind are folded in, summer brings about 67 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.
Iharan̈a 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 | 29° / 25° | 223 | 24.5 | 12.7 | 3.6 |
| Feb | 29° / 25° | 190 | 22.1 | 12.4 | 3.6 |
| Mar | 29° / 25° | 188 | 23.3 | 12.1 | 3.9 |
| Apr | 28° / 25° | 117 | 18.6 | 11.7 | 4.8 |
| May | 27° / 24° | 56 | 12.8 | 11.4 | 6.4 |
| Jun | 26° / 23° | 56 | 12.8 | 11.2 | 6.5 |
| Jul | 25° / 22° | 66 | 13.2 | 11.3 | 6.6 |
| Aug | 25° / 22° | 53 | 13.4 | 11.6 | 6.7 |
| Sep | 26° / 22° | 41 | 11.2 | 11.9 | 7.0 |
| Oct | 26° / 23° | 46 | 11 | 12.3 | 6.9 |
| Nov | 28° / 24° | 54 | 12.4 | 12.6 | 6.3 |
| Dec | 28° / 25° | 153 | 21.2 | 12.8 | 4.4 |
Cloud cover in Summer
The sky is clear or mostly clear about 22% of the time across summer.
Chance of precipitation in Summer
Iharan̈a gets around 567 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 15 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 12 h 42 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 6.0 kWh/m².
Hazard calendar for Iharan̈a
In summer, Iharan̈a overlaps its cyclone and monsoon season. The full year is below, with each hazard's peak months called out.
Iharan̈a sits in the South Indian Ocean cyclone belt; the season peaks January–March.
Iharan̈a's monsoon runs December–April, when most of the year's rain falls.
Is summer a good time to visit Iharan̈a?
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 Iharan̈a.
What to pack for Iharan̈a in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Iharan̈a sees daytime highs around 29°C and nights near 25°C. Pack light clothes, rain gear and sun protection. About 68 days see rain.
Sea temperature near Iharan̈a 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 at the nearest coast (about 14 km away) 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) | 28 | 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 | 28 | 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 Iharan̈a 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 Iharan̈a peaks around February 16 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 22 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) | 14 | 15 | 15 | 12 | 10 | 9 | 9 | 11 | 12 | 13 | 13 | 13 |
| Level | Extreme | Extreme | Extreme | Extreme | Very high | Very high | Very high | Extreme | Extreme | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 14 | Extreme |
| Feb | 15 | Extreme |
| Mar | 15 | Extreme |
| Apr | 12 | Extreme |
| May | 10 | Very high |
| Jun | 9 | Very high |
| Jul | 9 | Very high |
| Aug | 11 | Extreme |
| Sep | 12 | Extreme |
| Oct | 13 | Extreme |
| Nov | 13 | Extreme |
| Dec | 13 | Extreme |
Where is Iharan̈a?
Iharan̈a sits at 13.3°S, 50.0°E, in Madagascar. The nearest listed city is Sambava, 104 km away.
Topography around Iharan̈a
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Iharan̈a.
Within 3 km, the terrain around Iharan̈a has only modest variations in elevation — a maximum elevation change of 117 m around an average of 3 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 420 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,814 m.
The land around Iharan̈a is covered by water (71%) within 3 km, water (55%) and grassland (31%) within 16 km, and grassland (37%), water (37%) and trees (22%) 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 Iharan̈a (-13.35°, 50°), 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.