Antsiranana weather in August
In August, Antsiranana sees average daytime highs of 28°C and overnight lows near 21°C, with 4 mm of rain across 0.9 wet days and about 11.6 hours of daylight. It is the 11th-warmest and 11th-wettest month of the year here.
Day-to-day highs hold fairly steady near 28°C through the month. The sky is clear or mostly clear about 76% of the time in August, and the air most often feels humid.
Daylight stretches from about 11 h 30 min at the start of August to 11 h 42 min by month's end. Set against the rest of the year, August is Antsiranana's 2nd-clearest and 2nd-windiest month. For the whole year in context, see Antsiranana's year-round climate.
- Daytime high
- 28°
- 11th warmest
- Overnight low
- 21°
- 1st coldest
- Rainfall
- 4 mm
- 0.9 wet days
- Daylight
- 11 h 36 min
- 5:59 AM – 5:35 PM
- Cloud cover
- 27%
- 2nd clearest
- Wind
- 24 km/h
- 2nd windiest
- Solar energy
- 5.7 kWh/m²
- Travel score
- 7.8
- out of 10
Antsiranana is commune in Madagascar.
- Density
- 3,261/km²
- people per km²
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in August
Day-to-day highs hold fairly steady near 28°C through the month.
A typical August day in Antsiranana reaches about 28°C in the afternoon and slips back to 21°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 29°C. Set against its neighbours, August runs on par with July and on par with September.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 |
| Avg low (°C) | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 28 | 21 |
| 2 | 28 | 21 |
| 3 | 28 | 21 |
| 4 | 28 | 21 |
| 5 | 28 | 21 |
| 6 | 28 | 21 |
| 7 | 28 | 21 |
| 8 | 28 | 21 |
| 9 | 28 | 21 |
| 10 | 28 | 21 |
| 11 | 28 | 21 |
| 12 | 28 | 21 |
| 13 | 28 | 21 |
| 14 | 28 | 21 |
| 15 | 28 | 21 |
| 16 | 28 | 21 |
| 17 | 28 | 21 |
| 18 | 28 | 21 |
| 19 | 28 | 21 |
| 20 | 28 | 21 |
| 21 | 28 | 21 |
| 22 | 28 | 21 |
| 23 | 28 | 21 |
| 24 | 28 | 21 |
| 25 | 28 | 21 |
| 26 | 28 | 21 |
| 27 | 28 | 21 |
| 28 | 28 | 21 |
| 29 | 28 | 21 |
| 30 | 28 | 21 |
| 31 | 28 | 21 |
How August really feels in Antsiranana
Once humidity and wind are folded in, August averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.
August sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Antsiranana weather by month
How August compares with the rest of the year at a glance. August is the 11th-warmest and 11th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 30° / 24° | 244 | 24.4 | 12.6 | 3.4 |
| Feb | 29° / 24° | 220 | 23.6 | 12.4 | 3.3 |
| Mar | 30° / 24° | 151 | 19.2 | 12.1 | 3.9 |
| Apr | 31° / 24° | 45 | 8 | 11.7 | 5.0 |
| May | 30° / 23° | 12 | 1.9 | 11.4 | 6.2 |
| Jun | 29° / 22° | 5 | 1.2 | 11.3 | 7.1 |
| Jul | 28° / 21° | 6 | 1.3 | 11.3 | 7.8 |
| Aug | 28° / 21° | 4 | 0.9 | 11.6 | 7.8 |
| Sep | 29° / 21° | 3 | 0.7 | 11.9 | 7.4 |
| Oct | 30° / 22° | 13 | 1.3 | 12.3 | 6.5 |
| Nov | 31° / 23° | 31 | 4.2 | 12.6 | 5.5 |
| Dec | 31° / 24° | 121 | 15.3 | 12.7 | 4.0 |
Cloud cover in August
The sky is clear or mostly clear about 76% of the time in August.
Beyond those clear spells, partly cloudy skies cover about 14% of August, with mostly cloudy or overcast conditions the remaining 10%.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 88 | 88 | 88 | 88 | 89 | 89 | 89 | 89 | 89 | 89 | 89 | 89 | 89 | 89 | 89 | 89 | 89 | 89 | 89 | 90 | 91 | 91 | 91 | 91 | 92 | 91 | 91 | 91 | 92 | 92 | 92 |
| Cloudier (%) | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 10 | 9 | 9 | 9 | 9 | 8 | 9 | 9 | 9 | 8 | 8 | 8 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 88 | 12 |
| 2 | 88 | 12 |
| 3 | 88 | 12 |
| 4 | 88 | 12 |
| 5 | 89 | 11 |
| 6 | 89 | 11 |
| 7 | 89 | 11 |
| 8 | 89 | 11 |
| 9 | 89 | 11 |
| 10 | 89 | 11 |
| 11 | 89 | 11 |
| 12 | 89 | 11 |
| 13 | 89 | 11 |
| 14 | 89 | 11 |
| 15 | 89 | 11 |
| 16 | 89 | 11 |
| 17 | 89 | 11 |
| 18 | 89 | 11 |
| 19 | 89 | 11 |
| 20 | 90 | 10 |
| 21 | 91 | 9 |
| 22 | 91 | 9 |
| 23 | 91 | 9 |
| 24 | 91 | 9 |
| 25 | 92 | 8 |
| 26 | 91 | 9 |
| 27 | 91 | 9 |
| 28 | 91 | 9 |
| 29 | 92 | 8 |
| 30 | 92 | 8 |
| 31 | 92 | 8 |
Chance of precipitation in August
Antsiranana gets around 4 mm of rain over 0.9 wet days in August. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 3% and peaks near 5% on the wettest days.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 5 | 4 | 4 | 4 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 4 | 4 | 4 | 4 | 4 | 4 | 3 | 3 | 3 | 3 |
| Rain chance (%) | |
|---|---|
| 1 | 5 |
| 2 | 4 |
| 3 | 4 |
| 4 | 4 |
| 5 | 3 |
| 6 | 3 |
| 7 | 3 |
| 8 | 2 |
| 9 | 2 |
| 10 | 2 |
| 11 | 2 |
| 12 | 2 |
| 13 | 2 |
| 14 | 2 |
| 15 | 3 |
| 16 | 3 |
| 17 | 3 |
| 18 | 3 |
| 19 | 3 |
| 20 | 3 |
| 21 | 3 |
| 22 | 4 |
| 23 | 4 |
| 24 | 4 |
| 25 | 4 |
| 26 | 4 |
| 27 | 4 |
| 28 | 3 |
| 29 | 3 |
| 30 | 3 |
| 31 | 3 |
Humidity in August
Most of August feels humid — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, August lands in the humid band about 71% of days. Sticky, muggy-or-worse air turns up on roughly 9% of them.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Comfortable (%) | 25 | 25 | 25 | 25 | 24 | 24 | 24 | 23 | 23 | 23 | 22 | 22 | 21 | 20 | 20 | 19 | 19 | 19 | 18 | 18 | 18 | 18 | 18 | 18 | 17 | 17 | 17 | 17 | 17 | 17 | 16 |
| Humid (%) | 62 | 62 | 62 | 63 | 64 | 65 | 65 | 67 | 68 | 69 | 70 | 70 | 71 | 73 | 73 | 74 | 74 | 74 | 75 | 75 | 74 | 74 | 74 | 74 | 74 | 74 | 75 | 75 | 75 | 75 | 75 |
| Muggy (%) | 12 | 12 | 12 | 11 | 11 | 10 | 10 | 9 | 9 | 8 | 8 | 8 | 8 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 8 | 8 | 8 | 8 | 8 | 8 | 9 |
| Oppressive (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | |
|---|---|---|---|---|---|
| 1 | 1 | 25 | 62 | 12 | 0 |
| 2 | 1 | 25 | 62 | 12 | 0 |
| 3 | 1 | 25 | 62 | 12 | 0 |
| 4 | 1 | 25 | 63 | 11 | 0 |
| 5 | 1 | 24 | 64 | 11 | 0 |
| 6 | 1 | 24 | 65 | 10 | 0 |
| 7 | 1 | 24 | 65 | 10 | 0 |
| 8 | 1 | 23 | 67 | 9 | 0 |
| 9 | 0 | 23 | 68 | 9 | 0 |
| 10 | 0 | 23 | 69 | 8 | 0 |
| 11 | 0 | 22 | 70 | 8 | 0 |
| 12 | 0 | 22 | 70 | 8 | 0 |
| 13 | 0 | 21 | 71 | 8 | 0 |
| 14 | 0 | 20 | 73 | 7 | 0 |
| 15 | 0 | 20 | 73 | 7 | 0 |
| 16 | 0 | 19 | 74 | 7 | 0 |
| 17 | 0 | 19 | 74 | 7 | 0 |
| 18 | 0 | 19 | 74 | 7 | 0 |
| 19 | 0 | 18 | 75 | 7 | 0 |
| 20 | 0 | 18 | 75 | 7 | 0 |
| 21 | 0 | 18 | 74 | 7 | 1 |
| 22 | 0 | 18 | 74 | 7 | 1 |
| 23 | 0 | 18 | 74 | 7 | 1 |
| 24 | 0 | 18 | 74 | 7 | 1 |
| 25 | 0 | 17 | 74 | 8 | 1 |
| 26 | 0 | 17 | 74 | 8 | 1 |
| 27 | 0 | 17 | 75 | 8 | 0 |
| 28 | 0 | 17 | 75 | 8 | 0 |
| 29 | 0 | 17 | 75 | 8 | 0 |
| 30 | 0 | 17 | 75 | 8 | 0 |
| 31 | 0 | 16 | 75 | 9 | 0 |
Wind in August
Winds average 24 km/h in August.
Across August, daily wind ranges from about 23 km/h on the calmest days to 24 km/h at its breeziest. It stays fairly steady from day to day.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 |
| Feels | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 23 | breezy |
| 2 | 23 | breezy |
| 3 | 23 | breezy |
| 4 | 23 | breezy |
| 5 | 23 | breezy |
| 6 | 23 | breezy |
| 7 | 23 | breezy |
| 8 | 23 | breezy |
| 9 | 23 | breezy |
| 10 | 23 | breezy |
| 11 | 23 | breezy |
| 12 | 23 | breezy |
| 13 | 23 | breezy |
| 14 | 23 | breezy |
| 15 | 23 | breezy |
| 16 | 23 | breezy |
| 17 | 23 | breezy |
| 18 | 23 | breezy |
| 19 | 23 | breezy |
| 20 | 23 | breezy |
| 21 | 24 | breezy |
| 22 | 24 | breezy |
| 23 | 24 | breezy |
| 24 | 24 | breezy |
| 25 | 24 | breezy |
| 26 | 24 | breezy |
| 27 | 24 | breezy |
| 28 | 24 | breezy |
| 29 | 24 | breezy |
| 30 | 24 | breezy |
| 31 | 24 | breezy |
Sunrise & sunset in August
Daylight runs from about 11 h 30 min at the start of August to 11 h 42 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 12 minutes over August. Sunrise moves from 6:05 AM to 5:50 AM, and sunset from 5:32 PM to 5:35 PM.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 11.5 | 11.5 | 11.5 | 11.5 | 11.5 | 11.5 | 11.5 | 11.5 | 11.5 | 11.5 | 11.5 | 11.5 | 11.6 | 11.6 | 11.6 | 11.6 | 11.6 | 11.6 | 11.6 | 11.6 | 11.6 | 11.7 | 11.7 | 11.7 | 11.7 | 11.7 | 11.7 | 11.7 | 11.7 | 11.7 | 11.7 |
| Sunrise (AM) | 6:05 | 6:05 | 6:05 | 6:04 | 6:04 | 6:04 | 6:03 | 6:03 | 6:03 | 6:02 | 6:02 | 6:01 | 6:01 | 6:00 | 6:00 | 5:59 | 5:59 | 5:58 | 5:58 | 5:57 | 5:57 | 5:56 | 5:55 | 5:55 | 5:54 | 5:54 | 5:53 | 5:52 | 5:52 | 5:51 | 5:50 |
| Sunset (PM) | 5:32 | 5:33 | 5:33 | 5:33 | 5:33 | 5:33 | 5:33 | 5:34 | 5:34 | 5:34 | 5:34 | 5:34 | 5:34 | 5:34 | 5:34 | 5:35 | 5:35 | 5:35 | 5:35 | 5:35 | 5:35 | 5:35 | 5:35 | 5:35 | 5:35 | 5:35 | 5:35 | 5:35 | 5:35 | 5:35 | 5:35 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 11.5 | 6:05 | 5:32 |
| 2 | 11.5 | 6:05 | 5:33 |
| 3 | 11.5 | 6:05 | 5:33 |
| 4 | 11.5 | 6:04 | 5:33 |
| 5 | 11.5 | 6:04 | 5:33 |
| 6 | 11.5 | 6:04 | 5:33 |
| 7 | 11.5 | 6:03 | 5:33 |
| 8 | 11.5 | 6:03 | 5:34 |
| 9 | 11.5 | 6:03 | 5:34 |
| 10 | 11.5 | 6:02 | 5:34 |
| 11 | 11.5 | 6:02 | 5:34 |
| 12 | 11.5 | 6:01 | 5:34 |
| 13 | 11.6 | 6:01 | 5:34 |
| 14 | 11.6 | 6:00 | 5:34 |
| 15 | 11.6 | 6:00 | 5:34 |
| 16 | 11.6 | 5:59 | 5:35 |
| 17 | 11.6 | 5:59 | 5:35 |
| 18 | 11.6 | 5:58 | 5:35 |
| 19 | 11.6 | 5:58 | 5:35 |
| 20 | 11.6 | 5:57 | 5:35 |
| 21 | 11.6 | 5:57 | 5:35 |
| 22 | 11.7 | 5:56 | 5:35 |
| 23 | 11.7 | 5:55 | 5:35 |
| 24 | 11.7 | 5:55 | 5:35 |
| 25 | 11.7 | 5:54 | 5:35 |
| 26 | 11.7 | 5:54 | 5:35 |
| 27 | 11.7 | 5:53 | 5:35 |
| 28 | 11.7 | 5:52 | 5:35 |
| 29 | 11.7 | 5:52 | 5:35 |
| 30 | 11.7 | 5:51 | 5:35 |
| 31 | 11.7 | 5:50 | 5:35 |
Solar energy in August
Average shortwave solar energy reaching the ground each day in August, about 5.7 kWh/m².
For context, solar energy here swings from a low near 4.83 kWh/m² to a high of 6.97 kWh/m² in October across the year — August's 5.7 kWh/m² falls in the middle.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 5.3 | 5.3 | 5.3 | 5.3 | 5.4 | 5.4 | 5.4 | 5.5 | 5.5 | 5.5 | 5.5 | 5.6 | 5.6 | 5.6 | 5.7 | 5.7 | 5.7 | 5.8 | 5.8 | 5.8 | 5.8 | 5.9 | 5.9 | 5.9 | 5.9 | 6.0 | 6.0 | 6.0 | 6.0 | 6.1 | 6.1 |
| Level | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Intense | Intense | Intense | Intense |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 5.3 | Bright |
| 2 | 5.3 | Bright |
| 3 | 5.3 | Bright |
| 4 | 5.3 | Bright |
| 5 | 5.4 | Bright |
| 6 | 5.4 | Bright |
| 7 | 5.4 | Bright |
| 8 | 5.5 | Bright |
| 9 | 5.5 | Bright |
| 10 | 5.5 | Bright |
| 11 | 5.5 | Bright |
| 12 | 5.6 | Bright |
| 13 | 5.6 | Bright |
| 14 | 5.6 | Bright |
| 15 | 5.7 | Bright |
| 16 | 5.7 | Bright |
| 17 | 5.7 | Bright |
| 18 | 5.8 | Bright |
| 19 | 5.8 | Bright |
| 20 | 5.8 | Bright |
| 21 | 5.8 | Bright |
| 22 | 5.9 | Bright |
| 23 | 5.9 | Bright |
| 24 | 5.9 | Bright |
| 25 | 5.9 | Bright |
| 26 | 6.0 | Bright |
| 27 | 6.0 | Bright |
| 28 | 6.0 | Intense |
| 29 | 6.0 | Intense |
| 30 | 6.1 | Intense |
| 31 | 6.1 | Intense |
Hazard calendar for Antsiranana
None of Antsiranana's seasonal hazards are active in August. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.
Antsiranana sits in the South Indian Ocean cyclone belt; the season peaks January–March.
Antsiranana's monsoon runs December–March, when most of the year's rain falls.
Is August a good time to visit Antsiranana?
Our two travel scores rate August for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
August is one of the better times to visit Antsiranana for general sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Antsiranana in August
From August's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In August, Antsiranana sees daytime highs around 28°C and nights near 21°C. Pack light clothes. Worth having: sun protection and a windbreaker.
Sea temperature near Antsiranana in August
The nearest coast averages about 25°C in August — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 23 km away) is warmest in March at about 28°C and coldest in August near 25°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 | 28 | 28 | 28 | 28 | 26 | 25 | 25 | 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 | 28 | Tropical |
| Mar | 28 | Tropical |
| Apr | 28 | Tropical |
| May | 28 | Warm |
| Jun | 26 | Warm |
| Jul | 25 | Warm |
| Aug | 25 | Warm |
| Sep | 25 | Warm |
| Oct | 25 | Warm |
| Nov | 27 | Warm |
| Dec | 28 | Warm |
UV index in Antsiranana in August
Clear-sky midday UV in August peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Antsiranana peaks around February 20 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 | 13 | 14 | 13 | 14 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | 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 | Extreme |
| Jun | 9 | Very high |
| Jul | 9 | Very high |
| Aug | 11 | Extreme |
| Sep | 13 | Extreme |
| Oct | 14 | Extreme |
| Nov | 13 | Extreme |
| Dec | 14 | Extreme |
Where is Antsiranana?
Antsiranana sits at 12.3°S, 49.3°E, 60 m above sea level, in Madagascar. The nearest listed city is Antsohimbondrona, 98 km away.
Topography around Antsiranana
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Antsiranana.
Within 3 km, the terrain around Antsiranana has only modest variations in elevation — a maximum elevation change of 106 m around an average of 39 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 466 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,441 m.
The land around Antsiranana is covered by grassland (47%) and artificial surfaces (23%) within 3 km, grassland (30%) and water (29%) within 16 km, and water (60%) and grassland (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 Antsiranana (-12.3173°, 49.2919°, elevation 60 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). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).