Mananjary weather in December
In December, Mananjary sees average daytime highs of 29°C and overnight lows near 24°C, with 152 mm of rain across 19.4 wet days and about 13.3 hours of daylight. It is the 3rd-warmest and 5th-wettest month of the year here.
Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 23% of the time in December, and the air most often feels oppressive.
Daylight stretches from about 13 h 12 min at the start of December to 13 h 18 min by month's end. Set against the rest of the year, December is Mananjary's 9th-clearest and 3rd-windiest month. For the whole year in context, see Mananjary's year-round climate.
- Daytime high
- 29°
- 3rd warmest
- Overnight low
- 24°
- 10th coldest
- Rainfall
- 152 mm
- 19.4 wet days
- Daylight
- 13 h 18 min
- 5:04 AM – 6:21 PM
- Cloud cover
- 64%
- 9th clearest
- Wind
- 11 km/h
- 3rd windiest
- Solar energy
- 6.32 kWh/m²
- Travel score
- 4.4
- out of 10
Temperature in December
Day-to-day highs hold fairly steady near 29°C through the month.
A typical December day in Mananjary reaches about 29°C in the afternoon and slips back to 24°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 31°C. Set against its neighbours, December runs about 1°C warmer than November and on par with January.
| 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 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 |
| Avg low (°C) | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 28 | 24 |
| 2 | 28 | 24 |
| 3 | 28 | 24 |
| 4 | 28 | 24 |
| 5 | 29 | 24 |
| 6 | 29 | 24 |
| 7 | 29 | 24 |
| 8 | 29 | 24 |
| 9 | 29 | 24 |
| 10 | 29 | 24 |
| 11 | 29 | 24 |
| 12 | 29 | 24 |
| 13 | 29 | 24 |
| 14 | 29 | 24 |
| 15 | 29 | 24 |
| 16 | 29 | 24 |
| 17 | 29 | 24 |
| 18 | 29 | 24 |
| 19 | 29 | 24 |
| 20 | 29 | 24 |
| 21 | 29 | 24 |
| 22 | 29 | 24 |
| 23 | 29 | 24 |
| 24 | 29 | 24 |
| 25 | 29 | 24 |
| 26 | 29 | 24 |
| 27 | 29 | 24 |
| 28 | 29 | 24 |
| 29 | 29 | 24 |
| 30 | 29 | 24 |
| 31 | 29 | 24 |
How December really feels in Mananjary
Once humidity and wind are folded in, December averages 22 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.
The story in December is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Mananjary weather by month
How December compares with the rest of the year at a glance. December is the 3rd-warmest and 5th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 29° / 25° | 312 | 25.1 | 13.1 | 3.5 |
| Feb | 29° / 25° | 274 | 23.6 | 12.7 | 3.5 |
| Mar | 29° / 24° | 279 | 24.9 | 12.2 | 3.8 |
| Apr | 28° / 23° | 164 | 20.9 | 11.5 | 4.9 |
| May | 26° / 21° | 141 | 19 | 11 | 5.5 |
| Jun | 24° / 19° | 92 | 16.9 | 10.7 | 6.0 |
| Jul | 23° / 18° | 94 | 17.8 | 10.8 | 6.0 |
| Aug | 24° / 18° | 57 | 13.2 | 11.3 | 6.8 |
| Sep | 25° / 19° | 48 | 10 | 11.9 | 7.2 |
| Oct | 26° / 21° | 60 | 10.7 | 12.5 | 6.8 |
| Nov | 28° / 23° | 85 | 12.7 | 13 | 5.9 |
| Dec | 29° / 24° | 152 | 19.4 | 13.3 | 4.4 |
Cloud cover in December
The sky is clear or mostly clear about 23% of the time in December.
Beyond those clear spells, partly cloudy skies cover about 19% of December, with mostly cloudy or overcast conditions the remaining 59%. Skies tend to cloud over as the month goes on.
| 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 (%) | 46 | 45 | 45 | 44 | 44 | 44 | 44 | 43 | 43 | 42 | 42 | 42 | 42 | 41 | 41 | 41 | 40 | 40 | 41 | 41 | 41 | 41 | 42 | 41 | 41 | 40 | 40 | 38 | 38 | 37 | 36 |
| Cloudier (%) | 54 | 55 | 55 | 56 | 56 | 56 | 56 | 57 | 57 | 58 | 58 | 58 | 58 | 59 | 59 | 59 | 60 | 60 | 59 | 59 | 59 | 59 | 58 | 59 | 59 | 60 | 60 | 62 | 62 | 63 | 64 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 46 | 54 |
| 2 | 45 | 55 |
| 3 | 45 | 55 |
| 4 | 44 | 56 |
| 5 | 44 | 56 |
| 6 | 44 | 56 |
| 7 | 44 | 56 |
| 8 | 43 | 57 |
| 9 | 43 | 57 |
| 10 | 42 | 58 |
| 11 | 42 | 58 |
| 12 | 42 | 58 |
| 13 | 42 | 58 |
| 14 | 41 | 59 |
| 15 | 41 | 59 |
| 16 | 41 | 59 |
| 17 | 40 | 60 |
| 18 | 40 | 60 |
| 19 | 41 | 59 |
| 20 | 41 | 59 |
| 21 | 41 | 59 |
| 22 | 41 | 59 |
| 23 | 42 | 58 |
| 24 | 41 | 59 |
| 25 | 41 | 59 |
| 26 | 40 | 60 |
| 27 | 40 | 60 |
| 28 | 38 | 62 |
| 29 | 38 | 62 |
| 30 | 37 | 63 |
| 31 | 36 | 64 |
Chance of precipitation in December
Mananjary gets around 152 mm of rain over 19.4 wet days in December. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 64% and peaks near 77% on the wettest days. The odds climb toward the end of the month.
| 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 (%) | 53 | 54 | 54 | 54 | 55 | 55 | 56 | 56 | 57 | 57 | 58 | 59 | 60 | 61 | 63 | 64 | 65 | 65 | 66 | 67 | 68 | 68 | 69 | 70 | 71 | 72 | 73 | 74 | 75 | 76 | 77 |
| Rain chance (%) | |
|---|---|
| 1 | 53 |
| 2 | 54 |
| 3 | 54 |
| 4 | 54 |
| 5 | 55 |
| 6 | 55 |
| 7 | 56 |
| 8 | 56 |
| 9 | 57 |
| 10 | 57 |
| 11 | 58 |
| 12 | 59 |
| 13 | 60 |
| 14 | 61 |
| 15 | 63 |
| 16 | 64 |
| 17 | 65 |
| 18 | 65 |
| 19 | 66 |
| 20 | 67 |
| 21 | 68 |
| 22 | 68 |
| 23 | 69 |
| 24 | 70 |
| 25 | 71 |
| 26 | 72 |
| 27 | 73 |
| 28 | 74 |
| 29 | 75 |
| 30 | 76 |
| 31 | 77 |
Humidity in December
Most of December feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, December lands in the oppressive band about 78% of days. Sticky, muggy-or-worse air turns up on roughly 100% 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Humid (%) | 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 | 0 |
| Muggy (%) | 16 | 16 | 15 | 14 | 14 | 13 | 12 | 12 | 11 | 11 | 10 | 9 | 9 | 8 | 8 | 7 | 7 | 6 | 6 | 6 | 5 | 5 | 4 | 4 | 3 | 3 | 3 | 2 | 2 | 2 | 2 |
| Oppressive (%) | 78 | 78 | 78 | 79 | 78 | 79 | 79 | 79 | 79 | 78 | 79 | 79 | 78 | 78 | 78 | 78 | 77 | 78 | 78 | 78 | 79 | 79 | 79 | 79 | 80 | 79 | 78 | 78 | 78 | 77 | 76 |
| Miserable (%) | 5 | 5 | 6 | 6 | 7 | 7 | 8 | 9 | 10 | 11 | 11 | 12 | 13 | 14 | 14 | 15 | 16 | 16 | 16 | 16 | 16 | 16 | 17 | 17 | 17 | 18 | 19 | 20 | 20 | 21 | 22 |
| Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|
| 1 | 1 | 16 | 78 | 5 |
| 2 | 1 | 16 | 78 | 5 |
| 3 | 1 | 15 | 78 | 6 |
| 4 | 1 | 14 | 79 | 6 |
| 5 | 1 | 14 | 78 | 7 |
| 6 | 1 | 13 | 79 | 7 |
| 7 | 1 | 12 | 79 | 8 |
| 8 | 0 | 12 | 79 | 9 |
| 9 | 0 | 11 | 79 | 10 |
| 10 | 0 | 11 | 78 | 11 |
| 11 | 0 | 10 | 79 | 11 |
| 12 | 0 | 9 | 79 | 12 |
| 13 | 0 | 9 | 78 | 13 |
| 14 | 0 | 8 | 78 | 14 |
| 15 | 0 | 8 | 78 | 14 |
| 16 | 0 | 7 | 78 | 15 |
| 17 | 0 | 7 | 77 | 16 |
| 18 | 0 | 6 | 78 | 16 |
| 19 | 0 | 6 | 78 | 16 |
| 20 | 0 | 6 | 78 | 16 |
| 21 | 0 | 5 | 79 | 16 |
| 22 | 0 | 5 | 79 | 16 |
| 23 | 0 | 4 | 79 | 17 |
| 24 | 0 | 4 | 79 | 17 |
| 25 | 0 | 3 | 80 | 17 |
| 26 | 0 | 3 | 79 | 18 |
| 27 | 0 | 3 | 78 | 19 |
| 28 | 0 | 2 | 78 | 20 |
| 29 | 0 | 2 | 78 | 20 |
| 30 | 0 | 2 | 77 | 21 |
| 31 | 0 | 2 | 76 | 22 |
Wind in December
Winds average 11 km/h in December.
Across December, daily wind ranges from about 10 km/h on the calmest days to 12 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) | 12 | 12 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 |
| Feels | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 12 | calm |
| 2 | 12 | calm |
| 3 | 11 | calm |
| 4 | 11 | calm |
| 5 | 11 | calm |
| 6 | 11 | calm |
| 7 | 11 | calm |
| 8 | 11 | calm |
| 9 | 11 | calm |
| 10 | 11 | calm |
| 11 | 11 | calm |
| 12 | 11 | calm |
| 13 | 11 | calm |
| 14 | 11 | calm |
| 15 | 11 | calm |
| 16 | 11 | calm |
| 17 | 11 | calm |
| 18 | 11 | calm |
| 19 | 11 | calm |
| 20 | 11 | calm |
| 21 | 11 | calm |
| 22 | 10 | calm |
| 23 | 10 | calm |
| 24 | 10 | calm |
| 25 | 10 | calm |
| 26 | 10 | calm |
| 27 | 10 | calm |
| 28 | 10 | calm |
| 29 | 10 | calm |
| 30 | 10 | calm |
| 31 | 10 | calm |
Sunrise & sunset in December
Daylight runs from about 13 h 12 min at the start of December to 13 h 18 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 6 minutes over December. Sunrise moves from 5:00 AM to 5:12 AM, and sunset from 6:12 PM to 6:28 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) | 13.2 | 13.2 | 13.2 | 13.2 | 13.2 | 13.2 | 13.2 | 13.3 | 13.3 | 13.3 | 13.3 | 13.3 | 13.3 | 13.3 | 13.3 | 13.3 | 13.3 | 13.3 | 13.3 | 13.3 | 13.3 | 13.3 | 13.3 | 13.3 | 13.3 | 13.3 | 13.3 | 13.3 | 13.3 | 13.3 | 13.3 |
| Sunrise (AM) | 5:00 | 5:01 | 5:01 | 5:01 | 5:01 | 5:01 | 5:01 | 5:02 | 5:02 | 5:02 | 5:03 | 5:03 | 5:03 | 5:04 | 5:04 | 5:04 | 5:05 | 5:05 | 5:05 | 5:06 | 5:06 | 5:07 | 5:07 | 5:08 | 5:08 | 5:09 | 5:09 | 5:10 | 5:10 | 5:11 | 5:12 |
| Sunset (PM) | 6:12 | 6:13 | 6:14 | 6:14 | 6:15 | 6:16 | 6:16 | 6:17 | 6:17 | 6:18 | 6:19 | 6:19 | 6:20 | 6:20 | 6:21 | 6:21 | 6:22 | 6:22 | 6:23 | 6:23 | 6:24 | 6:24 | 6:25 | 6:25 | 6:26 | 6:26 | 6:27 | 6:27 | 6:27 | 6:28 | 6:28 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 13.2 | 5:00 | 6:12 |
| 2 | 13.2 | 5:01 | 6:13 |
| 3 | 13.2 | 5:01 | 6:14 |
| 4 | 13.2 | 5:01 | 6:14 |
| 5 | 13.2 | 5:01 | 6:15 |
| 6 | 13.2 | 5:01 | 6:16 |
| 7 | 13.2 | 5:01 | 6:16 |
| 8 | 13.3 | 5:02 | 6:17 |
| 9 | 13.3 | 5:02 | 6:17 |
| 10 | 13.3 | 5:02 | 6:18 |
| 11 | 13.3 | 5:03 | 6:19 |
| 12 | 13.3 | 5:03 | 6:19 |
| 13 | 13.3 | 5:03 | 6:20 |
| 14 | 13.3 | 5:04 | 6:20 |
| 15 | 13.3 | 5:04 | 6:21 |
| 16 | 13.3 | 5:04 | 6:21 |
| 17 | 13.3 | 5:05 | 6:22 |
| 18 | 13.3 | 5:05 | 6:22 |
| 19 | 13.3 | 5:05 | 6:23 |
| 20 | 13.3 | 5:06 | 6:23 |
| 21 | 13.3 | 5:06 | 6:24 |
| 22 | 13.3 | 5:07 | 6:24 |
| 23 | 13.3 | 5:07 | 6:25 |
| 24 | 13.3 | 5:08 | 6:25 |
| 25 | 13.3 | 5:08 | 6:26 |
| 26 | 13.3 | 5:09 | 6:26 |
| 27 | 13.3 | 5:09 | 6:27 |
| 28 | 13.3 | 5:10 | 6:27 |
| 29 | 13.3 | 5:10 | 6:27 |
| 30 | 13.3 | 5:11 | 6:28 |
| 31 | 13.3 | 5:12 | 6:28 |
Solar energy in December
Average shortwave solar energy reaching the ground each day in December, about 6.32 kWh/m² — the sunniest month for solar.
For context, solar energy here swings from a low near 3.28 kWh/m² to a high of 6.32 kWh/m² in December across the year — December's 6.32 kWh/m² sits near the top of that range.
| 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) | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.2 | 6.2 | 6.2 | 6.2 | 6.1 | 6.1 | 6.1 | 6.0 | 6.0 | 6.0 |
| Level | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Bright | Bright |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 6.4 | Intense |
| 2 | 6.4 | Intense |
| 3 | 6.4 | Intense |
| 4 | 6.4 | Intense |
| 5 | 6.4 | Intense |
| 6 | 6.4 | Intense |
| 7 | 6.4 | Intense |
| 8 | 6.4 | Intense |
| 9 | 6.4 | Intense |
| 10 | 6.4 | Intense |
| 11 | 6.4 | Intense |
| 12 | 6.4 | Intense |
| 13 | 6.4 | Intense |
| 14 | 6.3 | Intense |
| 15 | 6.3 | Intense |
| 16 | 6.3 | Intense |
| 17 | 6.3 | Intense |
| 18 | 6.3 | Intense |
| 19 | 6.3 | Intense |
| 20 | 6.3 | Intense |
| 21 | 6.3 | Intense |
| 22 | 6.2 | Intense |
| 23 | 6.2 | Intense |
| 24 | 6.2 | Intense |
| 25 | 6.2 | Intense |
| 26 | 6.1 | Intense |
| 27 | 6.1 | Intense |
| 28 | 6.1 | Intense |
| 29 | 6.0 | Intense |
| 30 | 6.0 | Bright |
| 31 | 6.0 | Bright |
Hazard calendar for Mananjary
In December, Mananjary sits inside its cyclone and rainy season season. The full year is below, with each hazard's peak months called out.
Mananjary sits in the South Indian Ocean cyclone belt; the season peaks January–March.
Mananjary's rainy season runs December–May, when most of the year's rain falls.
Is December a good time to visit Mananjary?
Our two travel scores rate December for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
December is a reasonable time to visit Mananjary for sightseeing.
What to pack for Mananjary in December
From December's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In December, Mananjary sees daytime highs around 29°C and nights near 24°C. Pack light clothes, rain gear and sun protection. About 19 days see rain.
Sea temperature near Mananjary in December
The nearest coast averages about 27°C in December — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 16 km away) is warmest in February at about 28°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) | 28 | 28 | 28 | 28 | 27 | 26 | 25 | 24 | 24 | 25 | 26 | 27 |
| Comfort | Tropical | Tropical | Tropical | Warm | Warm | Warm | Warm | Warm | Warm | Warm | Warm | Warm |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 28 | Tropical |
| Feb | 28 | Tropical |
| Mar | 28 | Tropical |
| Apr | 28 | Warm |
| May | 27 | Warm |
| Jun | 26 | Warm |
| Jul | 25 | Warm |
| Aug | 24 | Warm |
| Sep | 24 | Warm |
| Oct | 25 | Warm |
| Nov | 26 | Warm |
| Dec | 27 | Warm |
UV index in Mananjary in December
Clear-sky midday UV in December peaks around 14 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Mananjary peaks around February 12 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 18 at about 6 (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 | 16 | 13 | 10 | 7 | 6 | 6 | 8 | 9 | 11 | 12 | 14 |
| Level | Extreme | Extreme | Extreme | Very high | Very high | High | High | Very high | Very high | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 14 | Extreme |
| Feb | 16 | Extreme |
| Mar | 13 | Extreme |
| Apr | 10 | Very high |
| May | 7 | Very high |
| Jun | 6 | High |
| Jul | 6 | High |
| Aug | 8 | Very high |
| Sep | 9 | Very high |
| Oct | 11 | Extreme |
| Nov | 12 | Extreme |
| Dec | 14 | Extreme |
Air quality in Mananjary in December
Average fine-particle pollution (PM2.5) through the year — so you can see where December falls, not just the annual average.
Air quality in Mananjary is worst in October — around 36 µg/m³ PM2.5 (poor), about 5.6× the cleanest month (February, 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) | 8 | 6 | 7 | 9 | 13 | 13 | 12 | 11 | 14 | 36 | 22 | 10 |
| Level | Good | Good | Good | Good | Moderate | Moderate | Good | Good | Moderate | Poor | Moderate | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 8 | Good |
| Feb | 6 | Good |
| Mar | 7 | Good |
| Apr | 9 | Good |
| May | 13 | Moderate |
| Jun | 13 | Moderate |
| Jul | 12 | Good |
| Aug | 11 | Good |
| Sep | 14 | Moderate |
| Oct | 36 | Poor |
| Nov | 22 | Moderate |
| Dec | 10 | Good |
Where is Mananjary?
Mananjary sits at 21.2°S, 48.3°E, 7 m above sea level, in Madagascar. The nearest listed city is Sahavato, 70 km away.
Topography around Mananjary
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Mananjary.
Within 3 km, the terrain around Mananjary has only modest variations in elevation — a maximum elevation change of 41 m around an average of 6 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 86 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,258 m.
The land around Mananjary is covered by water (37%), trees (25%) and grassland (21%) within 3 km, water (46%), grassland (25%) and trees (22%) within 16 km, and water (35%), grassland (29%) and trees (22%) 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 Mananjary (-21.2303°, 48.3417°, elevation 7 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).