Imerintsiatosika in Summer
In summer (December, January and February), Imerintsiatosika sees average daytime highs around 26°C and overnight lows near 17°C, with 787 mm of rain over about 59 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 26°C. The sky is clear or mostly clear about 10% of the time across summer, and the air most often feels humid.
Summer is Imerintsiatosika's weakest season of the year to visit on our travel score. For the whole year in context, see Imerintsiatosika's year-round climate.
- Avg daytime high
- 26°C
- warmest season of the year
- Avg overnight low
- 17°C
- Rainfall
- 787 mm
- 59 wet days
- Avg wind
- 9 km/h
- Travel score
- 5.0
- weakest season of the year
- Months
- Dec · Jan · Feb
Temperature in Imerintsiatosika in Summer
Across summer, daytime highs hold fairly steady around 26°C.
A typical summer day in Imerintsiatosika reaches about 26°C and drops to 17°C overnight. The warmest of the three months is December, the coolest December.
Imerintsiatosika 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 | 26° / 17° | 305 | 21.9 | 13 | 4.7 |
| Feb | 26° / 17° | 270 | 19.3 | 12.6 | 4.9 |
| Mar | 26° / 17° | 147 | 15.2 | 12.1 | 5.8 |
| Apr | 25° / 15° | 38 | 7.5 | 11.6 | 7.4 |
| May | 23° / 13° | 15 | 2.9 | 11.1 | 8.1 |
| Jun | 21° / 10° | 4 | 0.8 | 10.9 | 8.1 |
| Jul | 20° / 10° | 4 | 1 | 11 | 7.9 |
| Aug | 21° / 10° | 4 | 0.9 | 11.4 | 8.4 |
| Sep | 24° / 11° | 7 | 1.7 | 11.9 | 8.7 |
| Oct | 26° / 13° | 45 | 6.8 | 12.4 | 7.5 |
| Nov | 27° / 15° | 111 | 12.1 | 12.9 | 6.3 |
| Dec | 26° / 17° | 212 | 18 | 13.1 | 5.3 |
Cloud cover in Summer
The sky is clear or mostly clear about 10% of the time across summer.
Chance of precipitation in Summer
Imerintsiatosika gets around 787 mm of rain over 59 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels humid — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 9 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 13 h 06 min in early December to 12 h 24 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 5.8 kWh/m².
Hazard calendar for Imerintsiatosika
In summer, Imerintsiatosika overlaps its monsoon season. The full year is below, with each hazard's peak months called out.
Imerintsiatosika's monsoon runs December–March, when most of the year's rain falls.
Is summer a good time to visit Imerintsiatosika?
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 Imerintsiatosika for sightseeing.
What to pack for Imerintsiatosika in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Imerintsiatosika sees daytime highs around 26°C and nights near 17°C. Pack rain gear and sun protection. Worth having: light clothes. About 59 days see rain.
UV index in Imerintsiatosika in Summer
Clear-sky midday UV across summer averages around 16 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Imerintsiatosika peaks around February 10 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 17 at about 7 (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) | 16 | 16 | 14 | 11 | 9 | 7 | 8 | 10 | 12 | 13 | 13 | 15 |
| Level | Extreme | Extreme | Extreme | Extreme | Very high | High | Very high | Very high | Extreme | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 16 | Extreme |
| Feb | 16 | Extreme |
| Mar | 14 | Extreme |
| Apr | 11 | Extreme |
| May | 9 | Very high |
| Jun | 7 | High |
| Jul | 8 | Very high |
| Aug | 10 | Very high |
| Sep | 12 | Extreme |
| Oct | 13 | Extreme |
| Nov | 13 | Extreme |
| Dec | 15 | Extreme |
Air quality in Imerintsiatosika 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 Imerintsiatosika is worst in October — around 24 µg/m³ PM2.5 (moderate), about 3.7× the cleanest month (January, 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) | 6 | 9 | 11 | 14 | 21 | 22 | 21 | 18 | 15 | 24 | 17 | 8 |
| Level | Good | Good | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 6 | Good |
| Feb | 9 | Good |
| Mar | 11 | Good |
| Apr | 14 | Moderate |
| May | 21 | Moderate |
| Jun | 22 | Moderate |
| Jul | 21 | Moderate |
| Aug | 18 | Moderate |
| Sep | 15 | Moderate |
| Oct | 24 | Moderate |
| Nov | 17 | Moderate |
| Dec | 8 | Good |
Where is Imerintsiatosika?
Imerintsiatosika sits at 19.0°S, 47.3°E, 1,296 m above sea level, in Madagascar. The nearest listed city is Arivonimamo, 15 km away.
Topography around Imerintsiatosika
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Imerintsiatosika.
Within 3 km, the terrain around Imerintsiatosika has only modest variations in elevation — a maximum elevation change of 148 m around an average of 1,305 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 425 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,760 m.
The land around Imerintsiatosika is covered by cropland (55%) and grassland (34%) within 3 km, grassland (52%) and cropland (45%) within 16 km, and grassland (61%) and cropland (27%) 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 Imerintsiatosika (-18.9833°, 47.3167°, elevation 1,296 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.