Climate and average weather in Antananarivo
In Antananarivo, the summers are warm, showery, and partly cloudy and the winters are mild and partly cloudy.
Over the course of the year, the temperature in Antananarivo typically varies from 10°C to 27°C, and is rarely below 7°C or above 29°C. November is the hottest month of the year, while July is the coldest.
Based on the travel score, the best time of year to visit Antananarivo for warm-weather activities is from mid April to early November.
- Hottest
- Nov
- 27°
- Coldest
- Jul
- 10°
- Wettest
- Jan
- 287 mm
- Driest
- Aug
- 3 mm
- Rain / yr
- 1026 mm
- 103 wet days
- Daylight
- 10.9–13.1 h
- shortest–longest
- Elevation
- 1,274 m
- 18.9°S
- Clearest
- Sep
- 38% cloud
Antananarivo is capital and largest city of Madagascar.
- Air quality
- High
- PM2.5 32 µg/m³ · 2020
- Founded
- 1625
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Antananarivo 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 early November.
Temperature through the year
Daily average highs and lows in Antananarivo, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.
Temperatures in Antananarivo stay fairly even through the year, without a distinct hot or cool season. The warmest month is November, with an average high of 27°C and low of 15°C; the coolest is July, with an average low of 10°C and high of 19°C.
Days typically run about 10°C warmer than nights, with the widest day–night swing (around 12°C) in October.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 26 | 25 | 25 | 24 | 23 | 20 | 19 | 21 | 23 | 25 | 27 | 26 |
| Avg low (°C) | 17 | 17 | 17 | 15 | 13 | 11 | 10 | 10 | 11 | 13 | 15 | 17 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| Jan | 26 | 17 |
| Feb | 25 | 17 |
| Mar | 25 | 17 |
| Apr | 24 | 15 |
| May | 23 | 13 |
| Jun | 20 | 11 |
| Jul | 19 | 10 |
| Aug | 21 | 10 |
| Sep | 23 | 11 |
| Oct | 25 | 13 |
| Nov | 27 | 15 |
| Dec | 26 | 17 |
Average hourly temperature in Antananarivo
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 November afternoons, near 27°C, and coldest before dawn in July, near 10°C.
Antananarivo 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 | 26° / 17° | 287 | 22.1 | 13 | 4.7 |
| Feb | 25° / 17° | 248 | 20 | 12.6 | 4.8 |
| Mar | 25° / 17° | 143 | 15.4 | 12.1 | 5.8 |
| Apr | 24° / 15° | 32 | 7 | 11.6 | 7.5 |
| May | 23° / 13° | 12 | 2.4 | 11.1 | 8.1 |
| Jun | 20° / 11° | 4 | 0.7 | 10.9 | 7.8 |
| Jul | 19° / 10° | 5 | 1 | 11 | 7.6 |
| Aug | 21° / 10° | 3 | 0.7 | 11.4 | 8.1 |
| Sep | 23° / 11° | 5 | 1.1 | 11.9 | 8.6 |
| Oct | 25° / 13° | 27 | 4.8 | 12.4 | 7.9 |
| Nov | 27° / 15° | 79 | 10.3 | 12.9 | 6.6 |
| Dec | 26° / 17° | 181 | 17.5 | 13.1 | 5.3 |
Chance of rain
How likely it is to rain on a typical day, and how that shifts across the wetter and drier seasons.
Antananarivo gets about 1026 mm of precipitation a year. On a typical day the chance of rain is some rain, but that rises and falls sharply with the seasons.
The wetter season lasts 4.9 months, from around Nov 11 to Apr 8, peaking in January at about 73% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jul 2.
January is the wettest month by volume, with 287 mm over about 22 wet days; August is the driest, with 3 mm.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain on a day (%) | 71 | 70 | 50 | 23 | 8 | 3 | 3 | 2 | 4 | 15 | 34 | 57 |
| Rain days | 22 | 20 | 15 | 7 | 2 | 1 | 1 | 1 | 1 | 5 | 10 | 18 |
| Rain on a day (%) | Rain days | |
|---|---|---|
| Jan | 71 | 22 |
| Feb | 70 | 20 |
| Mar | 50 | 15 |
| Apr | 23 | 7 |
| May | 8 | 2 |
| Jun | 3 | 1 |
| Jul | 3 | 1 |
| Aug | 2 | 1 |
| Sep | 4 | 1 |
| Oct | 15 | 5 |
| Nov | 34 | 10 |
| Dec | 57 | 18 |
Monthly rainfall
Over a full year, Antananarivo collects about 1026 mm of rain across 103 wet days — roughly 86 mm in an average month.
It doesn’t fall evenly. January is the wettest month with 287 mm, while August is the driest at just 3 mm. The three wettest months alone bring about 70% of the year’s total.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rainfall (mm) | 287 | 248 | 143 | 32 | 12 | 4 | 5 | 3 | 5 | 27 | 79 | 181 |
| Rain days | 22 | 20 | 15 | 7 | 2 | 1 | 1 | 1 | 1 | 5 | 10 | 18 |
| Rainfall (mm) | Rain days | |
|---|---|---|
| Jan | 287 | 22 |
| Feb | 248 | 20 |
| Mar | 143 | 15 |
| Apr | 32 | 7 |
| May | 12 | 2 |
| Jun | 4 | 1 |
| Jul | 5 | 1 |
| Aug | 3 | 1 |
| Sep | 5 | 1 |
| Oct | 27 | 5 |
| Nov | 79 | 10 |
| Dec | 181 | 18 |
Clouds and sunshine
How often the daytime sky is clear, partly cloudy or overcast.
In Antananarivo, 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 April 7 and lasts for 7.4 months, ending around November 16. The clearest month is September, when the sky is clear, mostly clear, or partly cloudy 73% of the time on average.
The cloudier part of the year begins around November 17 and lasts for 4.6 months, ending around April 6. 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 | 22 | 36 | 57 | 60 | 60 | 55 | 64 | 73 | 69 | 50 | 29 |
| Cloudier (%) | 82 | 78 | 64 | 43 | 40 | 40 | 45 | 36 | 27 | 31 | 50 | 71 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| Jan | 18 | 82 |
| Feb | 22 | 78 |
| Mar | 36 | 64 |
| Apr | 57 | 43 |
| May | 60 | 40 |
| Jun | 60 | 40 |
| Jul | 55 | 45 |
| Aug | 64 | 36 |
| Sep | 73 | 27 |
| Oct | 69 | 31 |
| Nov | 50 | 50 |
| 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 h 06 min of light; the shortest, around June 1, only 10 h 54 min — a swing of roughly 2 h 12 min.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 13.0 | 12.6 | 12.1 | 11.6 | 11.1 | 10.9 | 11.0 | 11.4 | 11.9 | 12.4 | 12.9 | 13.1 |
| Sunrise (AM) | 5:28 | 5:45 | 5:56 | 6:03 | 6:13 | 6:24 | 6:27 | 6:13 | 5:47 | 5:22 | 5:08 | 5:12 |
| Sunset (PM) | 6:30 | 6:24 | 6:04 | 5:37 | 5:19 | 5:16 | 5:24 | 5:35 | 5:41 | 5:48 | 6:02 | 6:20 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| Jan | 13.0 | 5:28 | 6:30 |
| Feb | 12.6 | 5:45 | 6:24 |
| Mar | 12.1 | 5:56 | 6:04 |
| Apr | 11.6 | 6:03 | 5:37 |
| May | 11.1 | 6:13 | 5:19 |
| Jun | 10.9 | 6:24 | 5:16 |
| Jul | 11.0 | 6:27 | 5:24 |
| Aug | 11.4 | 6:13 | 5:35 |
| Sep | 11.9 | 5:47 | 5:41 |
| Oct | 12.4 | 5:22 | 5:48 |
| Nov | 12.9 | 5:08 | 6:02 |
| Dec | 13.1 | 5:12 | 6:20 |
Sunny days
How many genuinely sunny days each month brings — days the sky stays clear or mostly clear — banded into plain-language zones.
Antananarivo averages about 9 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 2 and 17 days.
The sunnier stretch runs 6.8 months, from around Apr 16 to Nov 8. The sunniest month is September, with roughly 16 sunny days (bright).
The greyest month is January, down near 2 sunny days — about 87% fewer than the September peak.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sunny days | 2 | 2 | 4 | 9 | 12 | 12 | 11 | 14 | 16 | 14 | 8 | 4 |
| Sky | Gloomy | Gloomy | Gloomy | Mixed | Mixed | Mixed | Mixed | Mixed | Bright | Mixed | Gloomy | Gloomy |
| Sunny days | Sky | |
|---|---|---|
| Jan | 2 | Gloomy |
| Feb | 2 | Gloomy |
| Mar | 4 | Gloomy |
| Apr | 9 | Mixed |
| May | 12 | Mixed |
| Jun | 12 | Mixed |
| Jul | 11 | Mixed |
| Aug | 14 | Mixed |
| Sep | 16 | Bright |
| Oct | 14 | Mixed |
| Nov | 8 | Gloomy |
| Dec | 4 | 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 Antananarivo, how humid it feels changes dramatically over the year.
The more humid part of the year lasts 4.9 months, from around November 23 to April 19. The muggiest month is January, when the air feels humid, muggy or worse about 80% of the time.
The most comfortable stretch runs from around April 20 to November 22, and June is the most comfortable month — the air is dry or comfortable 100% of the time.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 0 | 0 | 1 | 11 | 52 | 91 | 98 | 98 | 93 | 66 | 30 | 6 |
| Comfortable (%) | 19 | 15 | 27 | 54 | 44 | 9 | 2 | 2 | 7 | 30 | 48 | 36 |
| Humid (%) | 72 | 74 | 68 | 35 | 4 | 0 | 0 | 0 | 0 | 4 | 21 | 56 |
| Muggy (%) | 8 | 10 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | |
|---|---|---|---|---|
| Jan | 0 | 19 | 72 | 8 |
| Feb | 0 | 15 | 74 | 10 |
| Mar | 1 | 27 | 68 | 5 |
| Apr | 11 | 54 | 35 | 0 |
| May | 52 | 44 | 4 | 0 |
| Jun | 91 | 9 | 0 | 0 |
| Jul | 98 | 2 | 0 | 0 |
| Aug | 98 | 2 | 0 | 0 |
| Sep | 93 | 7 | 0 | 0 |
| Oct | 66 | 30 | 4 | 0 |
| Nov | 30 | 48 | 21 | 0 |
| Dec | 6 | 36 | 56 | 2 |
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 Antananarivo is typically calm, near 11 km/h, and varies little with the seasons.
The windier part of the year lasts 4.4 months, from around Jun 3 to Oct 13. The windiest month is July, averaging about 13 km/h (light breeze).
The calmer part of the year runs from around Oct 14 to Mar 2, 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) | 10 | 11 | 11 | 10 | 10 | 12 | 13 | 12 | 12 | 11 | 9 | 9 |
| Feels | calm | calm | calm | calm | calm | calm | light breeze | light breeze | calm | calm | calm | calm |
| Wind speed (km/h) | Feels | |
|---|---|---|
| Jan | 10 | calm |
| Feb | 11 | calm |
| Mar | 11 | calm |
| Apr | 10 | calm |
| May | 10 | calm |
| Jun | 12 | calm |
| Jul | 13 | light breeze |
| Aug | 12 | light breeze |
| Sep | 12 | calm |
| Oct | 11 | calm |
| Nov | 9 | calm |
| Dec | 9 | calm |
Hazard calendar for Antananarivo
When the seasonal hazards worth planning around — the rainy season, tropical-cyclone risk and dust haze — are active through the year.
Antananarivo's monsoon runs December–March, when most of the year's rain falls.
Best time to visit Antananarivo
To characterize how pleasant the weather is in Antananarivo throughout the year, we compute two travel scores — one for general sightseeing, one for beach and pool weather.
Around mid April, Antananarivo 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 Antananarivo for general outdoor tourist activities is from early April to early November, with a peak score in the third 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) | 4.7 | 4.8 | 5.8 | 7.4 | 8.1 | 7.8 | 7.6 | 8.1 | 8.6 | 7.9 | 6.6 | 5.3 |
| Rating | fair | fair | good | good | ideal | ideal | ideal | ideal | ideal | ideal | good | fair |
| Travel score (0–10) | Rating | |
|---|---|---|
| Jan | 4.7 | fair |
| Feb | 4.8 | fair |
| Mar | 5.8 | good |
| Apr | 7.4 | good |
| May | 8.1 | ideal |
| Jun | 7.8 | ideal |
| Jul | 7.6 | ideal |
| Aug | 8.1 | ideal |
| Sep | 8.6 | ideal |
| Oct | 7.9 | ideal |
| Nov | 6.6 | good |
| Dec | 5.3 | 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 Antananarivo for hot-weather activities run from early April to mid May and again from early September to late November, with a peak score in the first 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 Antananarivo, 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 November (highs near 27°C), the essentials are light clothes, rain gear and sun protection. In the cold season around July (highs near 19°C), pack a light layer.
In November, Antananarivo sees daytime highs around 27°C and nights near 15°C. Pack sun protection. Worth having: light clothes and rain gear. About 10 days see rain.
UV index (midday) in Antananarivo 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 Antananarivo peaks around February 11 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 |
Average hourly UV index in Antananarivo
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 | 8.5 | 7.5 | 6.5 | 6 | 6.5 | 7 | 8 | 8 | 8.5 | 9 |
| UV ≥ 6 (h/day) | 7.5 | 7 | 6.5 | 5.5 | 4.5 | 2.5 | 3.5 | 4.5 | 6 | 6.5 | 6.5 | 7.5 |
| UV ≥ 3 (h/day) | UV ≥ 6 (h/day) | |
|---|---|---|
| Jan | 9 | 7.5 |
| Feb | 9 | 7 |
| Mar | 8.5 | 6.5 |
| Apr | 7.5 | 5.5 |
| May | 6.5 | 4.5 |
| Jun | 6 | 2.5 |
| Jul | 6.5 | 3.5 |
| Aug | 7 | 4.5 |
| Sep | 8 | 6 |
| Oct | 8 | 6.5 |
| Nov | 8.5 | 6.5 |
| Dec | 9 | 7.5 |
Air quality in Antananarivo 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 Antananarivo is worst in October — around 49 µg/m³ PM2.5 (poor), about 3.7× the cleanest month (January, 13 µg/m³).
Seasonal pattern from CAMS reanalysis, scaled to Antananarivo's WHO annual average of 32 µg/m³.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 13 | 18 | 23 | 30 | 43 | 45 | 43 | 38 | 31 | 49 | 34 | 17 |
| Level | Moderate | Moderate | Moderate | Moderate | Poor | Poor | Poor | Poor | Moderate | Poor | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 13 | Moderate |
| Feb | 18 | Moderate |
| Mar | 23 | Moderate |
| Apr | 30 | Moderate |
| May | 43 | Poor |
| Jun | 45 | Poor |
| Jul | 43 | Poor |
| Aug | 38 | Poor |
| Sep | 31 | Moderate |
| Oct | 49 | Poor |
| Nov | 34 | Moderate |
| Dec | 17 | Moderate |
Growing season
Antananarivo 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. Antananarivo banks about 3,191 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) | 351 | 315 | 340 | 293 | 238 | 161 | 139 | 165 | 214 | 289 | 328 | 356 |
| Growing degree days (°C·days) | |
|---|---|
| Jan | 351 |
| Feb | 315 |
| Mar | 340 |
| Apr | 293 |
| May | 238 |
| Jun | 161 |
| Jul | 139 |
| Aug | 165 |
| Sep | 214 |
| Oct | 289 |
| Nov | 328 |
| Dec | 356 |
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.
Antananarivo receives about 5.3 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 3.7 and 6.8 kWh/m².
The brighter stretch of the year lasts 6.7 months, from around Sep 1 to Mar 24. The brightest month is November, averaging about 6.7 kWh/m² (intense).
The dimmest month is June, down near 3.8 kWh/m² — roughly 43% less than the November peak.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 5.5 | 5.3 | 5.3 | 5.0 | 4.2 | 3.8 | 3.9 | 4.8 | 5.9 | 6.6 | 6.7 | 6.3 |
| Level | Bright | Bright | Bright | Bright | Bright | Moderate | Moderate | Bright | Bright | Intense | Intense | Intense |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| Jan | 5.5 | Bright |
| Feb | 5.3 | Bright |
| Mar | 5.3 | Bright |
| Apr | 5.0 | Bright |
| May | 4.2 | Bright |
| Jun | 3.8 | Moderate |
| Jul | 3.9 | Moderate |
| Aug | 4.8 | Bright |
| Sep | 5.9 | Bright |
| Oct | 6.6 | Intense |
| Nov | 6.7 | Intense |
| Dec | 6.3 | Intense |
Where is Antananarivo?
Antananarivo sits at 18.9°S, 47.5°E, 1,274 m above sea level, in Madagascar. The nearest listed city is Ivato, 14 km away.
What Antananarivo looks like
Topography around Antananarivo
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Antananarivo.
Within 3 km, the terrain around Antananarivo has only modest variations in elevation — a maximum elevation change of 181 m around an average of 1,278 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 366 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,018 m.
The land around Antananarivo is covered by artificial surfaces (76%) within 3 km, cropland (47%) and grassland (32%) within 16 km, and grassland (62%) and cropland (21%) 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 Antananarivo (-18.9137°, 47.5361°, elevation 1,274 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. 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).