Antalaha weather in August
In August, Antalaha sees average daytime highs of 25°C and overnight lows near 19°C, with 53 mm of rain across 16 wet days and about 11.5 hours of daylight. It is the 11th-warmest and 11th-wettest month of the year here.
Day-to-day highs hold fairly steady near 25°C through the month. The sky is clear or mostly clear about 30% of the time in August, and the air most often feels humid.
Daylight stretches from about 11 h 18 min at the start of August to 11 h 42 min by month's end. Set against the rest of the year, August is Antalaha's 2nd-clearest and 2nd-windiest month. For the whole year in context, see Antalaha's year-round climate.
- Daytime high
- 25°
- 11th warmest
- Overnight low
- 19°
- 1st coldest
- Rainfall
- 53 mm
- 16 wet days
- Daylight
- 11 h 30 min
- 5:58 AM – 5:28 PM
- Cloud cover
- 50%
- 2nd clearest
- Wind
- 13 km/h
- 2nd windiest
- Solar energy
- 4.18 kWh/m²
- Travel score
- 6.2
- out of 10
Temperature in August
Day-to-day highs hold fairly steady near 25°C through the month.
A typical August day in Antalaha reaches about 25°C in the afternoon and slips back to 19°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 26°C. Set against its neighbours, August runs on par with July and about 1°C cooler than 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) | 24 | 24 | 24 | 24 | 24 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
| Avg low (°C) | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 24 | 19 |
| 2 | 24 | 19 |
| 3 | 24 | 19 |
| 4 | 24 | 19 |
| 5 | 24 | 19 |
| 6 | 25 | 19 |
| 7 | 25 | 19 |
| 8 | 25 | 19 |
| 9 | 25 | 19 |
| 10 | 25 | 19 |
| 11 | 25 | 19 |
| 12 | 25 | 19 |
| 13 | 25 | 19 |
| 14 | 25 | 19 |
| 15 | 25 | 19 |
| 16 | 25 | 19 |
| 17 | 25 | 19 |
| 18 | 25 | 19 |
| 19 | 25 | 19 |
| 20 | 25 | 19 |
| 21 | 25 | 19 |
| 22 | 25 | 19 |
| 23 | 25 | 19 |
| 24 | 25 | 19 |
| 25 | 25 | 19 |
| 26 | 25 | 19 |
| 27 | 25 | 19 |
| 28 | 25 | 19 |
| 29 | 25 | 19 |
| 30 | 25 | 19 |
| 31 | 25 | 19 |
How August really feels in Antalaha
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.
Antalaha 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° / 23° | 294 | 28.2 | 12.8 | 3.0 |
| Feb | 30° / 23° | 278 | 24.9 | 12.5 | 3.0 |
| Mar | 29° / 23° | 257 | 25.7 | 12.1 | 3.4 |
| Apr | 29° / 23° | 123 | 19.8 | 11.7 | 4.4 |
| May | 27° / 21° | 66 | 15.9 | 11.3 | 5.8 |
| Jun | 26° / 20° | 55 | 15.4 | 11.1 | 6.1 |
| Jul | 25° / 19° | 66 | 16.4 | 11.2 | 6.1 |
| Aug | 25° / 19° | 53 | 16 | 11.5 | 6.2 |
| Sep | 26° / 19° | 44 | 13.7 | 11.9 | 6.3 |
| Oct | 27° / 20° | 56 | 12.7 | 12.3 | 6.2 |
| Nov | 29° / 22° | 70 | 14.5 | 12.7 | 5.1 |
| Dec | 30° / 23° | 173 | 22.8 | 12.9 | 3.7 |
Cloud cover in August
The sky is clear or mostly clear about 30% of the time in August.
Beyond those clear spells, partly cloudy skies cover about 44% of August, with mostly cloudy or overcast conditions the remaining 26%.
| 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 (%) | 71 | 71 | 72 | 72 | 74 | 74 | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 76 | 76 | 76 | 76 | 76 | 75 | 75 | 75 | 75 | 75 | 75 | 74 | 74 | 74 | 74 | 74 |
| Cloudier (%) | 29 | 29 | 28 | 28 | 26 | 26 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 25 | 25 | 25 | 25 | 25 | 25 | 26 | 26 | 26 | 26 | 26 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 71 | 29 |
| 2 | 71 | 29 |
| 3 | 72 | 28 |
| 4 | 72 | 28 |
| 5 | 74 | 26 |
| 6 | 74 | 26 |
| 7 | 75 | 25 |
| 8 | 75 | 25 |
| 9 | 75 | 25 |
| 10 | 75 | 25 |
| 11 | 75 | 25 |
| 12 | 75 | 25 |
| 13 | 75 | 25 |
| 14 | 75 | 25 |
| 15 | 75 | 25 |
| 16 | 76 | 24 |
| 17 | 76 | 24 |
| 18 | 76 | 24 |
| 19 | 76 | 24 |
| 20 | 76 | 24 |
| 21 | 75 | 25 |
| 22 | 75 | 25 |
| 23 | 75 | 25 |
| 24 | 75 | 25 |
| 25 | 75 | 25 |
| 26 | 75 | 25 |
| 27 | 74 | 26 |
| 28 | 74 | 26 |
| 29 | 74 | 26 |
| 30 | 74 | 26 |
| 31 | 74 | 26 |
Chance of precipitation in August
Antalaha gets around 53 mm of rain over 16 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 51% and peaks near 54% 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 (%) | 54 | 54 | 54 | 53 | 53 | 52 | 52 | 51 | 51 | 51 | 51 | 50 | 50 | 50 | 50 | 51 | 51 | 51 | 51 | 51 | 51 | 51 | 51 | 51 | 51 | 51 | 51 | 51 | 51 | 50 | 50 |
| Rain chance (%) | |
|---|---|
| 1 | 54 |
| 2 | 54 |
| 3 | 54 |
| 4 | 53 |
| 5 | 53 |
| 6 | 52 |
| 7 | 52 |
| 8 | 51 |
| 9 | 51 |
| 10 | 51 |
| 11 | 51 |
| 12 | 50 |
| 13 | 50 |
| 14 | 50 |
| 15 | 50 |
| 16 | 51 |
| 17 | 51 |
| 18 | 51 |
| 19 | 51 |
| 20 | 51 |
| 21 | 51 |
| 22 | 51 |
| 23 | 51 |
| 24 | 51 |
| 25 | 51 |
| 26 | 51 |
| 27 | 51 |
| 28 | 51 |
| 29 | 51 |
| 30 | 50 |
| 31 | 50 |
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 66% of days. Sticky, muggy-or-worse air turns up on roughly 29% 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Comfortable (%) | 6 | 6 | 6 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 |
| Humid (%) | 60 | 60 | 61 | 63 | 63 | 64 | 65 | 65 | 67 | 67 | 67 | 68 | 68 | 67 | 67 | 67 | 67 | 67 | 68 | 68 | 68 | 68 | 68 | 67 | 67 | 67 | 67 | 67 | 67 | 66 | 66 |
| Muggy (%) | 33 | 33 | 32 | 31 | 31 | 30 | 29 | 29 | 28 | 28 | 28 | 27 | 27 | 28 | 28 | 28 | 28 | 28 | 27 | 27 | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 28 | 28 | 29 | 29 |
| Oppressive (%) | 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 (%) | Humid (%) | Muggy (%) | Oppressive (%) | |
|---|---|---|---|---|
| 1 | 6 | 60 | 33 | 1 |
| 2 | 6 | 60 | 33 | 1 |
| 3 | 6 | 61 | 32 | 1 |
| 4 | 5 | 63 | 31 | 1 |
| 5 | 5 | 63 | 31 | 1 |
| 6 | 5 | 64 | 30 | 1 |
| 7 | 5 | 65 | 29 | 1 |
| 8 | 5 | 65 | 29 | 1 |
| 9 | 5 | 67 | 28 | 0 |
| 10 | 5 | 67 | 28 | 0 |
| 11 | 5 | 67 | 28 | 0 |
| 12 | 5 | 68 | 27 | 0 |
| 13 | 5 | 68 | 27 | 0 |
| 14 | 5 | 67 | 28 | 0 |
| 15 | 5 | 67 | 28 | 0 |
| 16 | 5 | 67 | 28 | 0 |
| 17 | 5 | 67 | 28 | 0 |
| 18 | 5 | 67 | 28 | 0 |
| 19 | 5 | 68 | 27 | 0 |
| 20 | 5 | 68 | 27 | 0 |
| 21 | 5 | 68 | 27 | 0 |
| 22 | 5 | 68 | 27 | 0 |
| 23 | 5 | 68 | 27 | 0 |
| 24 | 5 | 67 | 28 | 0 |
| 25 | 5 | 67 | 28 | 0 |
| 26 | 5 | 67 | 28 | 0 |
| 27 | 5 | 67 | 28 | 0 |
| 28 | 5 | 67 | 28 | 0 |
| 29 | 5 | 67 | 28 | 0 |
| 30 | 5 | 66 | 29 | 0 |
| 31 | 5 | 66 | 29 | 0 |
Wind in August
Winds average 13 km/h in August.
Across August, daily wind ranges from about 12 km/h on the calmest days to 13 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) | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 12 | 12 |
| Feels | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 13 | light breeze |
| 2 | 13 | light breeze |
| 3 | 13 | light breeze |
| 4 | 13 | light breeze |
| 5 | 13 | light breeze |
| 6 | 13 | light breeze |
| 7 | 13 | light breeze |
| 8 | 13 | light breeze |
| 9 | 13 | light breeze |
| 10 | 13 | light breeze |
| 11 | 13 | light breeze |
| 12 | 13 | light breeze |
| 13 | 13 | light breeze |
| 14 | 13 | light breeze |
| 15 | 13 | light breeze |
| 16 | 13 | light breeze |
| 17 | 13 | light breeze |
| 18 | 13 | light breeze |
| 19 | 13 | light breeze |
| 20 | 13 | light breeze |
| 21 | 13 | light breeze |
| 22 | 13 | light breeze |
| 23 | 13 | light breeze |
| 24 | 13 | light breeze |
| 25 | 13 | light breeze |
| 26 | 13 | light breeze |
| 27 | 13 | light breeze |
| 28 | 13 | light breeze |
| 29 | 13 | light breeze |
| 30 | 12 | light breeze |
| 31 | 12 | light breeze |
Sunrise & sunset in August
Daylight runs from about 11 h 18 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 24 minutes over August. Sunrise moves from 6:05 AM to 5:48 AM, and sunset from 5:25 PM to 5:30 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) | 11.3 | 11.3 | 11.4 | 11.4 | 11.4 | 11.4 | 11.4 | 11.4 | 11.4 | 11.4 | 11.4 | 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 | 11.7 | 11.7 | 11.7 | 11.7 |
| Sunrise (AM) | 6:05 | 6:05 | 6:04 | 6:04 | 6:04 | 6:03 | 6:03 | 6:02 | 6:02 | 6:01 | 6:01 | 6:00 | 6:00 | 5:59 | 5:59 | 5:58 | 5:57 | 5:57 | 5:56 | 5:56 | 5:55 | 5:54 | 5:54 | 5:53 | 5:52 | 5:52 | 5:51 | 5:50 | 5:50 | 5:49 | 5:48 |
| Sunset (PM) | 5:25 | 5:25 | 5:25 | 5:26 | 5:26 | 5:26 | 5:26 | 5:26 | 5:27 | 5:27 | 5:27 | 5:27 | 5:27 | 5:28 | 5:28 | 5:28 | 5:28 | 5:28 | 5:28 | 5:29 | 5:29 | 5:29 | 5:29 | 5:29 | 5:29 | 5:29 | 5:29 | 5:29 | 5:30 | 5:30 | 5:30 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 11.3 | 6:05 | 5:25 |
| 2 | 11.3 | 6:05 | 5:25 |
| 3 | 11.4 | 6:04 | 5:25 |
| 4 | 11.4 | 6:04 | 5:26 |
| 5 | 11.4 | 6:04 | 5:26 |
| 6 | 11.4 | 6:03 | 5:26 |
| 7 | 11.4 | 6:03 | 5:26 |
| 8 | 11.4 | 6:02 | 5:26 |
| 9 | 11.4 | 6:02 | 5:27 |
| 10 | 11.4 | 6:01 | 5:27 |
| 11 | 11.4 | 6:01 | 5:27 |
| 12 | 11.5 | 6:00 | 5:27 |
| 13 | 11.5 | 6:00 | 5:27 |
| 14 | 11.5 | 5:59 | 5:28 |
| 15 | 11.5 | 5:59 | 5:28 |
| 16 | 11.5 | 5:58 | 5:28 |
| 17 | 11.5 | 5:57 | 5:28 |
| 18 | 11.5 | 5:57 | 5:28 |
| 19 | 11.5 | 5:56 | 5:28 |
| 20 | 11.5 | 5:56 | 5:29 |
| 21 | 11.6 | 5:55 | 5:29 |
| 22 | 11.6 | 5:54 | 5:29 |
| 23 | 11.6 | 5:54 | 5:29 |
| 24 | 11.6 | 5:53 | 5:29 |
| 25 | 11.6 | 5:52 | 5:29 |
| 26 | 11.6 | 5:52 | 5:29 |
| 27 | 11.6 | 5:51 | 5:29 |
| 28 | 11.7 | 5:50 | 5:29 |
| 29 | 11.7 | 5:50 | 5:30 |
| 30 | 11.7 | 5:49 | 5:30 |
| 31 | 11.7 | 5:48 | 5:30 |
Solar energy in August
Average shortwave solar energy reaching the ground each day in August, about 4.18 kWh/m².
For context, solar energy here swings from a low near 3.55 kWh/m² to a high of 6.07 kWh/m² in November across the year — August's 4.18 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) | 3.8 | 3.8 | 3.8 | 3.9 | 3.9 | 3.9 | 4.0 | 4.0 | 4.0 | 4.0 | 4.1 | 4.1 | 4.1 | 4.2 | 4.2 | 4.2 | 4.2 | 4.3 | 4.3 | 4.3 | 4.3 | 4.3 | 4.4 | 4.4 | 4.4 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.6 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 3.8 | Moderate |
| 2 | 3.8 | Moderate |
| 3 | 3.8 | Moderate |
| 4 | 3.9 | Moderate |
| 5 | 3.9 | Moderate |
| 6 | 3.9 | Moderate |
| 7 | 4.0 | Moderate |
| 8 | 4.0 | Moderate |
| 9 | 4.0 | Bright |
| 10 | 4.0 | Bright |
| 11 | 4.1 | Bright |
| 12 | 4.1 | Bright |
| 13 | 4.1 | Bright |
| 14 | 4.2 | Bright |
| 15 | 4.2 | Bright |
| 16 | 4.2 | Bright |
| 17 | 4.2 | Bright |
| 18 | 4.3 | Bright |
| 19 | 4.3 | Bright |
| 20 | 4.3 | Bright |
| 21 | 4.3 | Bright |
| 22 | 4.3 | Bright |
| 23 | 4.4 | Bright |
| 24 | 4.4 | Bright |
| 25 | 4.4 | Bright |
| 26 | 4.5 | Bright |
| 27 | 4.5 | Bright |
| 28 | 4.5 | Bright |
| 29 | 4.5 | Bright |
| 30 | 4.5 | Bright |
| 31 | 4.6 | Bright |
Hazard calendar for Antalaha
None of Antalaha's seasonal hazards are active in August. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.
Antalaha sits in the South Indian Ocean cyclone belt; the season peaks January–March.
Antalaha's monsoon runs December–March, when most of the year's rain falls.
Is August a good time to visit Antalaha?
Our two travel scores rate August for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
August is a reasonable time to visit Antalaha for sightseeing.
What to pack for Antalaha in August
From August's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In August, Antalaha sees daytime highs around 25°C and nights near 19°C. Pack rain gear. Worth having: light clothes. About 16 days see rain.
Sea temperature near Antalaha in August
The nearest coast averages about 24°C in August — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea offshore 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) | 29 | 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 | 29 | 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 Antalaha in August
Clear-sky midday UV in August peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Antalaha peaks around January 21 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 at about 8 (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) | 15 | 15 | 14 | 11 | 10 | 8 | 8 | 10 | 12 | 13 | 13 | 14 |
| Level | Extreme | Extreme | Extreme | Extreme | Very high | Very high | Very high | Extreme | Extreme | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 15 | Extreme |
| Feb | 15 | Extreme |
| Mar | 14 | Extreme |
| Apr | 11 | Extreme |
| May | 10 | Very high |
| Jun | 8 | Very high |
| Jul | 8 | Very high |
| Aug | 10 | Extreme |
| Sep | 12 | Extreme |
| Oct | 13 | Extreme |
| Nov | 13 | Extreme |
| Dec | 14 | Extreme |
Air quality in Antalaha in August
Average fine-particle pollution (PM2.5) through the year — so you can see where August falls, not just the annual average.
Air quality in Antalaha is worst in December — around 22 µg/m³ PM2.5 (moderate), about 3.5× the cleanest month (September, 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) | 10 | 6 | 7 | 7 | 7 | 8 | 7 | 7 | 6 | 6 | 14 | 22 |
| Level | Good | Good | Good | Good | Good | Good | Good | Good | Good | Good | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 10 | Good |
| Feb | 6 | Good |
| Mar | 7 | Good |
| Apr | 7 | Good |
| May | 7 | Good |
| Jun | 8 | Good |
| Jul | 7 | Good |
| Aug | 7 | Good |
| Sep | 6 | Good |
| Oct | 6 | Good |
| Nov | 14 | Moderate |
| Dec | 22 | Moderate |
Where is Antalaha?
Antalaha sits at 14.9°S, 50.3°E, 13 m above sea level, in Madagascar. The nearest listed city is Ampahana, 18 km away.
Topography around Antalaha
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Antalaha.
Within 3 km, the terrain around Antalaha has only modest variations in elevation — a maximum elevation change of 138 m around an average of 19 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 530 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,083 m.
The land around Antalaha is covered by water (43%) and trees (37%) within 3 km, water (48%) and trees (39%) within 16 km, and trees (55%) and water (35%) 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 Antalaha (-14.9003°, 50.2788°, elevation 13 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. 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).