Climate and average weather in Imerimandroso
In Imerimandroso, the summers are humid, warm, wet, and mostly cloudy and the winters are mild and partly cloudy.
Over the course of the year, the temperature in Imerimandroso typically varies from 13°C to 28°C, and is rarely below 10°C or above 31°C. December is the hottest month of the year, while July is the coldest.
Based on the travel score, the best time of year to visit Imerimandroso for warm-weather activities is from mid April to mid November.
- Hottest
- Dec
- 28°
- Coldest
- Jul
- 13°
- Wettest
- Jan
- 288 mm
- Driest
- Sep
- 8 mm
- Rain / yr
- 1044 mm
- 123 wet days
- Daylight
- 11.0–13.0 h
- shortest–longest
- Elevation
- 755 m
- 17.4°S
- Clearest
- Oct
- 52% cloud
Imerimandroso weather by month, at a glance
The whole year in one picture — sky, rain, humidity, temperature and travel score. Click any band to jump to its full chart.
Each stripe is one measure across the whole year, stacked so a single day reads top to bottom. The sky band runs overcast grey on top down to clear blue at the base — more blue means sunnier — followed by the rainfall curve, the humidity band, a temperature strip that tints each stretch of the year by how warm its average high is, and the travel-score line at the foot. Scan straight down any date to read that day across every measure at once; the score climbs highest around mid April to mid November.
Temperature through the year
Daily average highs and lows in Imerimandroso, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.
Temperatures in Imerimandroso stay fairly even through the year, without a distinct hot or cool season. The warmest month is December, with an average high of 28°C and low of 19°C; the coolest is July, with an average low of 13°C and high of 21°C.
Days typically run about 9°C warmer than nights year-round.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 27 | 27 | 27 | 26 | 24 | 22 | 21 | 22 | 23 | 26 | 28 | 28 |
| Avg low (°C) | 20 | 20 | 19 | 18 | 16 | 14 | 13 | 13 | 14 | 16 | 17 | 19 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| Jan | 27 | 20 |
| Feb | 27 | 20 |
| Mar | 27 | 19 |
| Apr | 26 | 18 |
| May | 24 | 16 |
| Jun | 22 | 14 |
| Jul | 21 | 13 |
| Aug | 22 | 13 |
| Sep | 23 | 14 |
| Oct | 26 | 16 |
| Nov | 28 | 17 |
| Dec | 28 | 19 |
Average hourly temperature in Imerimandroso
A compact picture of the whole year, hour by hour: each column is a day, each row an hour, and the color is the modeled average temperature. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.
Read left to right for the day of the year and top to bottom for the hour of the day; the color is the modeled temperature, cool blues through to hot reds on the same scale as the other charts. A vertical slice is a single day's swing — coolest just before dawn, warmest in the mid-afternoon — while a horizontal slice follows one hour across the seasons. The darker overlay marks night and the lighter one the twilight around sunrise and sunset. Colors run warmest on December afternoons, near 28°C, and coldest before dawn in July, near 13°C.
Imerimandroso weather by month
Every month at a glance. Click a month for its detailed page.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 27° / 20° | 288 | 23.9 | 12.9 | 4.2 |
| Feb | 27° / 20° | 250 | 22.2 | 12.6 | 4.2 |
| Mar | 27° / 19° | 167 | 19.2 | 12.1 | 5.0 |
| Apr | 26° / 18° | 44 | 9.9 | 11.6 | 6.6 |
| May | 24° / 16° | 23 | 5.9 | 11.2 | 7.6 |
| Jun | 22° / 14° | 12 | 3.3 | 11 | 7.5 |
| Jul | 21° / 13° | 14 | 3.4 | 11.1 | 7.3 |
| Aug | 22° / 13° | 10 | 2.8 | 11.4 | 7.6 |
| Sep | 23° / 14° | 8 | 2.2 | 11.9 | 8.2 |
| Oct | 26° / 16° | 18 | 4.5 | 12.4 | 7.7 |
| Nov | 28° / 17° | 48 | 8.7 | 12.8 | 6.6 |
| Dec | 28° / 19° | 165 | 17.3 | 13 | 5.0 |
Chance of rain
How likely it is to rain on a typical day, and how that shifts across the wetter and drier seasons.
Imerimandroso gets about 1044 mm of precipitation a year. On a typical day the chance of rain is often wet, but that rises and falls sharply with the seasons.
The wetter season lasts 4.8 months, from around Nov 22 to Apr 16, peaking in January at about 81% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Sep 19.
January is the wettest month by volume, with 288 mm over about 24 wet days; September is the driest, with 8 mm.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain on a day (%) | 76 | 79 | 62 | 34 | 18 | 11 | 11 | 10 | 7 | 14 | 29 | 56 |
| Rain days | 24 | 22 | 19 | 10 | 6 | 3 | 3 | 3 | 2 | 5 | 9 | 17 |
| Rain on a day (%) | Rain days | |
|---|---|---|
| Jan | 76 | 24 |
| Feb | 79 | 22 |
| Mar | 62 | 19 |
| Apr | 34 | 10 |
| May | 18 | 6 |
| Jun | 11 | 3 |
| Jul | 11 | 3 |
| Aug | 10 | 3 |
| Sep | 7 | 2 |
| Oct | 14 | 5 |
| Nov | 29 | 9 |
| Dec | 56 | 17 |
Monthly rainfall
Over a full year, Imerimandroso collects about 1044 mm of rain across 123 wet days — roughly 87 mm in an average month.
It doesn’t fall evenly. January is the wettest month with 288 mm, while September is the driest at just 8 mm. The three wettest months alone bring about 67% of the year’s total.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rainfall (mm) | 288 | 250 | 167 | 44 | 23 | 12 | 14 | 10 | 8 | 18 | 48 | 165 |
| Rain days | 24 | 22 | 19 | 10 | 6 | 3 | 3 | 3 | 2 | 5 | 9 | 17 |
| Rainfall (mm) | Rain days | |
|---|---|---|
| Jan | 288 | 24 |
| Feb | 250 | 22 |
| Mar | 167 | 19 |
| Apr | 44 | 10 |
| May | 23 | 6 |
| Jun | 12 | 3 |
| Jul | 14 | 3 |
| Aug | 10 | 3 |
| Sep | 8 | 2 |
| Oct | 18 | 5 |
| Nov | 48 | 9 |
| Dec | 165 | 17 |
Clouds and sunshine
How often the daytime sky is clear, partly cloudy or overcast.
In Imerimandroso, the average share of the sky covered by clouds shows significant seasonal variation over the course of the year.
The clearer part of the year begins around August 7 and lasts for 3.7 months, ending around November 27. The clearest month is October, when the sky is clear, mostly clear, or partly cloudy 57% of the time on average.
The cloudier part of the year begins around November 28 and lasts for 4.2 months, ending around April 3. The cloudiest month is January, when it is overcast or mostly cloudy 82% of the time.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 18 | 19 | 29 | 45 | 46 | 41 | 37 | 41 | 51 | 57 | 47 | 29 |
| Cloudier (%) | 82 | 81 | 71 | 55 | 54 | 59 | 63 | 59 | 49 | 43 | 53 | 71 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| Jan | 18 | 82 |
| Feb | 19 | 81 |
| Mar | 29 | 71 |
| Apr | 45 | 55 |
| May | 46 | 54 |
| Jun | 41 | 59 |
| Jul | 37 | 63 |
| Aug | 41 | 59 |
| Sep | 51 | 49 |
| Oct | 57 | 43 |
| Nov | 47 | 53 |
| Dec | 29 | 71 |
Daylight, sunrise and sunset
Hours of daylight through the year, with sunrise and sunset times.
The gold band is daylight — sunrise runs along its lower edge, sunset along the upper — so it widens toward summer and pinches toward winter, with night the dark area above and below. The longest day, around January 1, brings about 13 hours of light; the shortest, around May 31, only 11 hours — a swing of roughly 2 hours.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 12.9 | 12.6 | 12.1 | 11.6 | 11.2 | 11.0 | 11.1 | 11.4 | 11.9 | 12.4 | 12.8 | 13.0 |
| Sunrise (AM) | 5:27 | 5:43 | 5:52 | 5:58 | 6:06 | 6:17 | 6:20 | 6:08 | 5:43 | 5:19 | 5:06 | 5:11 |
| Sunset (PM) | 6:23 | 6:18 | 5:59 | 5:34 | 5:17 | 5:15 | 5:23 | 5:32 | 5:37 | 5:43 | 5:56 | 6:13 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| Jan | 12.9 | 5:27 | 6:23 |
| Feb | 12.6 | 5:43 | 6:18 |
| Mar | 12.1 | 5:52 | 5:59 |
| Apr | 11.6 | 5:58 | 5:34 |
| May | 11.2 | 6:06 | 5:17 |
| Jun | 11.0 | 6:17 | 5:15 |
| Jul | 11.1 | 6:20 | 5:23 |
| Aug | 11.4 | 6:08 | 5:32 |
| Sep | 11.9 | 5:43 | 5:37 |
| Oct | 12.4 | 5:19 | 5:43 |
| Nov | 12.8 | 5:06 | 5:56 |
| Dec | 13.0 | 5:11 | 6:13 |
Sunny days
How many genuinely sunny days each month brings — days the sky stays clear or mostly clear — banded into plain-language zones.
Imerimandroso averages about 5 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 1 and 10 days.
The sunnier stretch runs 3.9 months, from around Aug 1 to Nov 28. The sunniest month is October, with roughly 10 sunny days (mixed).
The greyest month is February, down near 1 sunny days — about 88% fewer than the October peak.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sunny days | 1 | 1 | 2 | 5 | 6 | 5 | 4 | 6 | 9 | 10 | 7 | 3 |
| Sky | Gloomy | Gloomy | Gloomy | Gloomy | Gloomy | Gloomy | Gloomy | Gloomy | Mixed | Mixed | Gloomy | Gloomy |
| Sunny days | Sky | |
|---|---|---|
| Jan | 1 | Gloomy |
| Feb | 1 | Gloomy |
| Mar | 2 | Gloomy |
| Apr | 5 | Gloomy |
| May | 6 | Gloomy |
| Jun | 5 | Gloomy |
| Jul | 4 | Gloomy |
| Aug | 6 | Gloomy |
| Sep | 9 | Mixed |
| Oct | 10 | Mixed |
| Nov | 7 | Gloomy |
| Dec | 3 | Gloomy |
Humidity comfort
Share of days at each humidity comfort level, based on the dew point — the measure that tracks how muggy it actually feels.
Humidity comfort is graded by the dew point — the temperature at which the air would be fully saturated — because it tracks how muggy it actually feels far better than relative humidity does. A low dew point feels dry and crisp; a high one feels sticky and oppressive no matter the reading on a humidity gauge.
In Imerimandroso, how humid it feels changes dramatically over the year.
The more humid part of the year lasts 6.3 months, from around November 9 to May 20. The muggiest month is January, when the air feels humid, muggy or worse about 100% of the time.
The most comfortable stretch runs from around May 21 to November 8, and August is the most comfortable month — the air is dry or comfortable 98% of the time.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 0 | 0 | 0 | 0 | 3 | 23 | 49 | 48 | 31 | 11 | 2 | 0 |
| Comfortable (%) | 0 | 0 | 0 | 6 | 34 | 63 | 48 | 50 | 62 | 58 | 32 | 6 |
| Humid (%) | 21 | 13 | 25 | 54 | 58 | 14 | 3 | 2 | 6 | 29 | 51 | 44 |
| Muggy (%) | 78 | 85 | 74 | 40 | 5 | 0 | 0 | 0 | 0 | 2 | 15 | 50 |
| Oppressive (%) | 1 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | |
|---|---|---|---|---|---|
| Jan | 0 | 0 | 21 | 78 | 1 |
| Feb | 0 | 0 | 13 | 85 | 2 |
| Mar | 0 | 0 | 25 | 74 | 2 |
| Apr | 0 | 6 | 54 | 40 | 0 |
| May | 3 | 34 | 58 | 5 | 0 |
| Jun | 23 | 63 | 14 | 0 | 0 |
| Jul | 49 | 48 | 3 | 0 | 0 |
| Aug | 48 | 50 | 2 | 0 | 0 |
| Sep | 31 | 62 | 6 | 0 | 0 |
| Oct | 11 | 58 | 29 | 2 | 0 |
| Nov | 2 | 32 | 51 | 15 | 0 |
| Dec | 0 | 6 | 44 | 50 | 0 |
Wind
Average wind speed through the year, banded into plain-language speed zones so a number reads as 'breezy' or 'calm' without knowing the scale.
This is the average sustained wind speed at the standard 10 metres above open ground — the steady flow a weather station reports, not the sharper gusts that come and go, which can run half again as fast. It's the number that says whether a place is generally breezy or calm.
Across the year, average wind speed in Imerimandroso is typically calm, near 10 km/h, and varies little with the seasons.
The windier part of the year lasts 5.2 months, from around Jun 4 to Nov 9. The windiest month is July, averaging about 12 km/h (calm).
The calmer part of the year runs from around Nov 10 to Jun 3, with December the calmest month at about 9 km/h.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 9 | 9 | 9 | 10 | 10 | 11 | 12 | 12 | 12 | 11 | 10 | 9 |
| Feels | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm |
| Wind speed (km/h) | Feels | |
|---|---|---|
| Jan | 9 | calm |
| Feb | 9 | calm |
| Mar | 9 | calm |
| Apr | 10 | calm |
| May | 10 | calm |
| Jun | 11 | calm |
| Jul | 12 | calm |
| Aug | 12 | calm |
| Sep | 12 | calm |
| Oct | 11 | calm |
| Nov | 10 | calm |
| Dec | 9 | calm |
Hazard calendar for Imerimandroso
When the seasonal hazards worth planning around — the rainy season, tropical-cyclone risk and dust haze — are active through the year.
Imerimandroso sits in the South Indian Ocean cyclone belt; the season peaks January–March.
Imerimandroso's monsoon runs December–March, when most of the year's rain falls.
Best time to visit Imerimandroso
To characterize how pleasant the weather is in Imerimandroso throughout the year, we compute two travel scores — one for general sightseeing, one for beach and pool weather.
Around late April, Imerimandroso is still near the start of its best-weather window — great conditions with the peak-season crowds not yet at full swing.
Inferred from the travel-score curve; month-by-month visitor numbers are a planned addition.
The travel score favors clear, rainless days with daytime highs between 18°C and 28°C. Based on this score, the best time of year to visit Imerimandroso for general outdoor tourist activities is from mid April to mid November, with a peak score in the last week of September.
The travel score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Travel score (0–10) | 4.2 | 4.2 | 5.0 | 6.6 | 7.6 | 7.5 | 7.3 | 7.6 | 8.1 | 7.7 | 6.6 | 5.0 |
| Rating | fair | fair | fair | good | ideal | ideal | good | ideal | ideal | ideal | good | fair |
| Travel score (0–10) | Rating | |
|---|---|---|
| Jan | 4.2 | fair |
| Feb | 4.2 | fair |
| Mar | 5.0 | fair |
| Apr | 6.6 | good |
| May | 7.6 | ideal |
| Jun | 7.5 | ideal |
| Jul | 7.3 | good |
| Aug | 7.6 | ideal |
| Sep | 8.1 | ideal |
| Oct | 7.7 | ideal |
| Nov | 6.6 | good |
| Dec | 5.0 | fair |
The beach/pool score favors clear, rainless days with daytime highs between 24°C and 34°C. Based on this score, the best times of year to visit Imerimandroso for hot-weather activities run from early April to early June and again from early September to mid December, with a peak score in the last week of October.
The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).
What to pack for Imerimandroso, by month
Month by month, what's worth putting in the bag — from the temperature range, rain chance, sun and wind. Tap a month for a quick packing note.
For a warm-season trip around December (highs near 28°C), the essentials are light clothes, rain gear and sun protection. In the cold season around July (highs near 21°C), pack a light layer.
In December, Imerimandroso sees daytime highs around 28°C and nights near 19°C. Pack light clothes and rain gear. Worth having: sun protection. About 17 days see rain.
UV index (midday) in Imerimandroso by month
Clear-sky midday UV index through the year, shaded by the WHO exposure levels — how much sun protection each month calls for.
Under clear skies, the midday UV index in Imerimandroso peaks around February 10 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 18 at about 7 (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) | 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 |
Average hourly UV index in Imerimandroso
Modeled clear-sky UV for every hour of every day — when in the day sun protection actually matters.
The whole year hour by hour: each column is a day, each row an hour, and the color is the modeled clear-sky UV index — the midday peak scaled down as the sun sits lower in the sky. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.
UV falls off far faster than brightness as the sun drops, so even in February the burn window is concentrated in the middle of the day: about 9 hours a day reach index 3 (protection recommended), and 7 hours reach 6 or more. Mornings and late afternoons stay comparatively gentle year round.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV ≥ 3 (h/day) | 9 | 9 | 8 | 7.5 | 6.5 | 6 | 6.5 | 7 | 7.5 | 8.5 | 8.5 | 9 |
| UV ≥ 6 (h/day) | 7 | 7 | 6.5 | 5.5 | 4.5 | 3 | 3.5 | 5 | 5.5 | 6.5 | 6.5 | 7 |
| UV ≥ 3 (h/day) | UV ≥ 6 (h/day) | |
|---|---|---|
| Jan | 9 | 7 |
| Feb | 9 | 7 |
| Mar | 8 | 6.5 |
| Apr | 7.5 | 5.5 |
| May | 6.5 | 4.5 |
| Jun | 6 | 3 |
| Jul | 6.5 | 3.5 |
| Aug | 7 | 5 |
| Sep | 7.5 | 5.5 |
| Oct | 8.5 | 6.5 |
| Nov | 8.5 | 6.5 |
| Dec | 9 | 7 |
Air quality in Imerimandroso by month
Average fine-particle pollution (PM2.5) through the year — so you can see which months the air is worst, not just the yearly average.
Air quality in Imerimandroso is worst in November — around 43 µg/m³ PM2.5 (poor), about 7.4× 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 | 6 | 6 | 6 | 8 | 7 | 7 | 7 | 8 | 22 | 43 | 10 |
| Level | Good | Good | Good | Good | Good | Good | Good | Good | Good | Moderate | Poor | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 6 | Good |
| Feb | 6 | Good |
| Mar | 6 | Good |
| Apr | 6 | Good |
| May | 8 | Good |
| Jun | 7 | Good |
| Jul | 7 | Good |
| Aug | 7 | Good |
| Sep | 8 | Good |
| Oct | 22 | Moderate |
| Nov | 43 | Poor |
| Dec | 10 | Good |
Growing season
Imerimandroso is frost-free year round — even the coldest nights rarely reach freezing, so there is no start or end to the growing season.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Frost-free chance (%) | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
| Frost nights | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Frost-free chance (%) | Frost nights | |
|---|---|---|
| Jan | 100 | 0 |
| Feb | 100 | 0 |
| Mar | 100 | 0 |
| Apr | 100 | 0 |
| May | 100 | 0 |
| Jun | 100 | 0 |
| Jul | 100 | 0 |
| Aug | 100 | 0 |
| Sep | 100 | 0 |
| Oct | 100 | 0 |
| Nov | 100 | 0 |
| Dec | 100 | 0 |
Growing degree days
Growing degree days tally heat above 10°C: each day adds however many degrees its average temperature runs over that threshold, and cold days add nothing. Imerimandroso banks about 3,907 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around December.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Growing degree days (°C·days) | 414 | 372 | 401 | 357 | 314 | 238 | 215 | 226 | 257 | 327 | 372 | 414 |
| Growing degree days (°C·days) | |
|---|---|
| Jan | 414 |
| Feb | 372 |
| Mar | 401 |
| Apr | 357 |
| May | 314 |
| Jun | 238 |
| Jul | 215 |
| Aug | 226 |
| Sep | 257 |
| Oct | 327 |
| Nov | 372 |
| Dec | 414 |
Solar energy
Average daily shortwave solar energy reaching the ground, banded into brightness zones so the number means something at a glance.
Solar energy is how much sunlight actually reaches the ground each day, measured in kilowatt-hours per square metre (kWh/m²) — the combined effect of how long the sun is up, how high it climbs, and how much cloud gets in the way. It's the raw fuel a solar panel has to work with: for scale, 1 kWh/m² a day is dim and wintry, while 7+ is desert-bright.
Imerimandroso receives about 4.8 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 3.2 and 6.4 kWh/m².
The brighter stretch of the year lasts 6.7 months, from around Sep 8 to Mar 31. The brightest month is November, averaging about 6.3 kWh/m² (intense).
The dimmest month is June, down near 3.3 kWh/m² — roughly 47% less than the November peak.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 5.2 | 5.0 | 4.9 | 4.5 | 3.8 | 3.3 | 3.3 | 4.0 | 5.1 | 5.9 | 6.3 | 5.9 |
| Level | Bright | Bright | Bright | Bright | Moderate | Moderate | Moderate | Bright | Bright | Bright | Intense | Bright |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| Jan | 5.2 | Bright |
| Feb | 5.0 | Bright |
| Mar | 4.9 | Bright |
| Apr | 4.5 | Bright |
| May | 3.8 | Moderate |
| Jun | 3.3 | Moderate |
| Jul | 3.3 | Moderate |
| Aug | 4.0 | Bright |
| Sep | 5.1 | Bright |
| Oct | 5.9 | Bright |
| Nov | 6.3 | Intense |
| Dec | 5.9 | Bright |
Where is Imerimandroso?
Imerimandroso sits at 17.4°S, 48.6°E, 755 m above sea level, in Madagascar. The nearest listed city is Amparafaravola, 42 km away.
Topography around Imerimandroso
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Imerimandroso.
Within 3 km, the terrain around Imerimandroso has only modest variations in elevation — a maximum elevation change of 138 m around an average of 769 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 703 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,522 m.
The land around Imerimandroso is covered by water (36%), cropland (34%) and grassland (24%) within 3 km, grassland (41%) and cropland (34%) within 16 km, and grassland (51%) and trees (32%) 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 Imerimandroso (-17.4333°, 48.5833°, elevation 755 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).