Umm Hājar weather in September
In September, Umm Hājar sees average daytime highs of 34°C and overnight lows near 24°C, with 67 mm of rain across 10.9 wet days and about 12.1 hours of daylight. It is the 9th-warmest and 3rd-wettest month of the year here.
Highs climb over the month, from about 32°C in the first days to 36°C by the end. The sky is clear or mostly clear about 36% of the time in September, and the air most often feels oppressive.
Daylight stretches from about 12 h 18 min at the start of September to 11 h 54 min by month's end. Set against the rest of the year, September is Umm Hājar's 10th-clearest and 12th-windiest month. For the whole year in context, see Umm Hājar's year-round climate.
- Daytime high
- 34°
- 9th warmest
- Overnight low
- 24°
- 7th coldest
- Rainfall
- 67 mm
- 10.9 wet days
- Daylight
- 12 h 06 min
- 5:33 AM – 5:38 PM
- Cloud cover
- 53%
- 10th clearest
- Wind
- 7 km/h
- 12th windiest
- Solar energy
- 6.16 kWh/m²
- Travel score
- 2.7
- out of 10
Umm Hājar is place in Batha, Chad.
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in September
Highs climb over the month, from about 32°C in the first days to 36°C by the end.
A typical September day in Umm Hājar reaches about 34°C in the afternoon and slips back to 24°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 32°C and 37°C. Set against its neighbours, September runs about 3°C warmer than August and about 3°C cooler than October.
| 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 32 | 32 | 32 | 32 | 33 | 33 | 33 | 33 | 33 | 33 | 34 | 34 | 34 | 34 | 34 | 35 | 35 | 35 | 35 | 35 | 35 | 36 | 36 | 36 | 36 | 36 | 36 | 37 | 37 | 37 |
| Avg low (°C) | 23 | 23 | 23 | 23 | 23 | 23 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 25 | 25 | 25 | 25 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 32 | 23 |
| 2 | 32 | 23 |
| 3 | 32 | 23 |
| 4 | 32 | 23 |
| 5 | 33 | 23 |
| 6 | 33 | 23 |
| 7 | 33 | 24 |
| 8 | 33 | 24 |
| 9 | 33 | 24 |
| 10 | 33 | 24 |
| 11 | 34 | 24 |
| 12 | 34 | 24 |
| 13 | 34 | 24 |
| 14 | 34 | 24 |
| 15 | 34 | 24 |
| 16 | 35 | 24 |
| 17 | 35 | 24 |
| 18 | 35 | 24 |
| 19 | 35 | 24 |
| 20 | 35 | 24 |
| 21 | 35 | 24 |
| 22 | 36 | 24 |
| 23 | 36 | 24 |
| 24 | 36 | 24 |
| 25 | 36 | 24 |
| 26 | 36 | 24 |
| 27 | 36 | 25 |
| 28 | 37 | 25 |
| 29 | 37 | 25 |
| 30 | 37 | 25 |
How September really feels in Umm Hājar
Once humidity and wind are folded in, September averages 30 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 September is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Umm Hājar weather by month
How September compares with the rest of the year at a glance. September is the 9th-warmest and 3rd-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 33° / 17° | 0 | 0 | 11.3 | 4.4 |
| Feb | 36° / 20° | 0 | 0 | 11.6 | 2.6 |
| Mar | 39° / 23° | 0 | 0 | 11.9 | 0.5 |
| Apr | 41° / 26° | 2 | 1 | 12.3 | 0.0 |
| May | 41° / 28° | 10 | 3.1 | 12.6 | 0.0 |
| Jun | 39° / 27° | 24 | 7 | 12.8 | 0.5 |
| Jul | 35° / 25° | 117 | 18.2 | 12.7 | 2.0 |
| Aug | 32° / 23° | 217 | 23.6 | 12.4 | 2.8 |
| Sep | 34° / 24° | 67 | 10.9 | 12.1 | 2.7 |
| Oct | 38° / 24° | 8 | 2.3 | 11.7 | 1.4 |
| Nov | 37° / 22° | 0 | 0 | 11.4 | 2.2 |
| Dec | 34° / 18° | 0 | 0 | 11.2 | 3.9 |
Cloud cover in September
The sky is clear or mostly clear about 36% of the time in September.
Beyond those clear spells, partly cloudy skies cover about 21% of September, with mostly cloudy or overcast conditions the remaining 42%. Skies tend to open up 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 37 | 38 | 40 | 42 | 44 | 45 | 47 | 49 | 51 | 52 | 54 | 56 | 57 | 59 | 60 | 61 | 62 | 63 | 63 | 64 | 65 | 66 | 66 | 66 | 68 | 68 | 70 | 70 | 71 | 72 |
| Cloudier (%) | 63 | 62 | 60 | 58 | 56 | 55 | 53 | 51 | 49 | 48 | 46 | 44 | 43 | 41 | 40 | 39 | 38 | 37 | 37 | 36 | 35 | 34 | 34 | 34 | 32 | 32 | 30 | 30 | 29 | 28 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 37 | 63 |
| 2 | 38 | 62 |
| 3 | 40 | 60 |
| 4 | 42 | 58 |
| 5 | 44 | 56 |
| 6 | 45 | 55 |
| 7 | 47 | 53 |
| 8 | 49 | 51 |
| 9 | 51 | 49 |
| 10 | 52 | 48 |
| 11 | 54 | 46 |
| 12 | 56 | 44 |
| 13 | 57 | 43 |
| 14 | 59 | 41 |
| 15 | 60 | 40 |
| 16 | 61 | 39 |
| 17 | 62 | 38 |
| 18 | 63 | 37 |
| 19 | 63 | 37 |
| 20 | 64 | 36 |
| 21 | 65 | 35 |
| 22 | 66 | 34 |
| 23 | 66 | 34 |
| 24 | 66 | 34 |
| 25 | 68 | 32 |
| 26 | 68 | 32 |
| 27 | 70 | 30 |
| 28 | 70 | 30 |
| 29 | 71 | 29 |
| 30 | 72 | 28 |
Chance of precipitation in September
Umm Hājar gets around 67 mm of rain over 10.9 wet days in September. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 36% and peaks near 63% on the wettest days. The odds ease 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 63 | 62 | 60 | 58 | 56 | 55 | 53 | 51 | 48 | 46 | 44 | 41 | 39 | 37 | 34 | 32 | 30 | 29 | 27 | 25 | 24 | 23 | 21 | 20 | 19 | 19 | 18 | 18 | 17 | 17 |
| Rain chance (%) | |
|---|---|
| 1 | 63 |
| 2 | 62 |
| 3 | 60 |
| 4 | 58 |
| 5 | 56 |
| 6 | 55 |
| 7 | 53 |
| 8 | 51 |
| 9 | 48 |
| 10 | 46 |
| 11 | 44 |
| 12 | 41 |
| 13 | 39 |
| 14 | 37 |
| 15 | 34 |
| 16 | 32 |
| 17 | 30 |
| 18 | 29 |
| 19 | 27 |
| 20 | 25 |
| 21 | 24 |
| 22 | 23 |
| 23 | 21 |
| 24 | 20 |
| 25 | 19 |
| 26 | 19 |
| 27 | 18 |
| 28 | 18 |
| 29 | 17 |
| 30 | 17 |
Humidity in September
Most of September feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, September lands in the oppressive band about 74% of days. Sticky, muggy-or-worse air turns up on roughly 93% 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 2 | 2 | 3 | 3 | 4 | 5 | 6 | 7 |
| Comfortable (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 3 | 3 | 4 | 4 | 5 | 6 | 6 |
| Humid (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 2 | 2 | 3 | 4 | 4 | 5 | 6 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 15 | 16 |
| Muggy (%) | 0 | 1 | 1 | 1 | 2 | 2 | 3 | 4 | 5 | 6 | 7 | 9 | 10 | 12 | 14 | 16 | 18 | 20 | 23 | 25 | 27 | 29 | 31 | 33 | 34 | 35 | 37 | 37 | 38 | 38 |
| Oppressive (%) | 98 | 97 | 97 | 97 | 96 | 96 | 95 | 94 | 93 | 91 | 90 | 88 | 88 | 85 | 83 | 80 | 76 | 74 | 69 | 66 | 64 | 60 | 56 | 52 | 49 | 46 | 43 | 39 | 36 | 33 |
| Miserable (%) | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|---|---|
| 1 | 0 | 0 | 0 | 0 | 98 | 2 |
| 2 | 0 | 0 | 0 | 1 | 97 | 2 |
| 3 | 0 | 0 | 0 | 1 | 97 | 2 |
| 4 | 0 | 0 | 0 | 1 | 97 | 2 |
| 5 | 0 | 0 | 0 | 2 | 96 | 2 |
| 6 | 0 | 0 | 0 | 2 | 96 | 2 |
| 7 | 0 | 0 | 0 | 3 | 95 | 2 |
| 8 | 0 | 0 | 0 | 4 | 94 | 2 |
| 9 | 0 | 0 | 0 | 5 | 93 | 2 |
| 10 | 0 | 0 | 1 | 6 | 91 | 2 |
| 11 | 0 | 0 | 1 | 7 | 90 | 2 |
| 12 | 0 | 0 | 1 | 9 | 88 | 2 |
| 13 | 0 | 0 | 1 | 10 | 88 | 1 |
| 14 | 0 | 0 | 2 | 12 | 85 | 1 |
| 15 | 0 | 0 | 2 | 14 | 83 | 1 |
| 16 | 0 | 0 | 3 | 16 | 80 | 1 |
| 17 | 0 | 1 | 4 | 18 | 76 | 1 |
| 18 | 0 | 1 | 4 | 20 | 74 | 1 |
| 19 | 1 | 1 | 5 | 23 | 69 | 1 |
| 20 | 1 | 1 | 6 | 25 | 66 | 1 |
| 21 | 1 | 1 | 6 | 27 | 64 | 1 |
| 22 | 1 | 2 | 7 | 29 | 60 | 1 |
| 23 | 2 | 2 | 8 | 31 | 56 | 1 |
| 24 | 2 | 3 | 9 | 33 | 52 | 1 |
| 25 | 3 | 3 | 10 | 34 | 49 | 0 |
| 26 | 3 | 4 | 11 | 35 | 46 | 0 |
| 27 | 4 | 4 | 12 | 37 | 43 | 0 |
| 28 | 5 | 5 | 13 | 37 | 39 | 0 |
| 29 | 6 | 6 | 15 | 38 | 36 | 0 |
| 30 | 7 | 6 | 16 | 38 | 33 | 0 |
Wind in September
Winds average 7 km/h in September, the calmest month.
Across September, daily wind ranges from about 7 km/h on the calmest days to 8 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 |
| 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 |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 7 | calm |
| 2 | 7 | calm |
| 3 | 7 | calm |
| 4 | 7 | calm |
| 5 | 7 | calm |
| 6 | 7 | calm |
| 7 | 7 | calm |
| 8 | 7 | calm |
| 9 | 7 | calm |
| 10 | 7 | calm |
| 11 | 7 | calm |
| 12 | 7 | calm |
| 13 | 7 | calm |
| 14 | 7 | calm |
| 15 | 7 | calm |
| 16 | 7 | calm |
| 17 | 7 | calm |
| 18 | 7 | calm |
| 19 | 7 | calm |
| 20 | 7 | calm |
| 21 | 7 | calm |
| 22 | 8 | calm |
| 23 | 8 | calm |
| 24 | 8 | calm |
| 25 | 8 | calm |
| 26 | 8 | calm |
| 27 | 8 | calm |
| 28 | 8 | calm |
| 29 | 8 | calm |
| 30 | 8 | calm |
Sunrise & sunset in September
Daylight runs from about 12 h 18 min at the start of September to 11 h 54 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 24 minutes over September. Sunrise moves from 5:33 AM to 5:34 AM, and sunset from 5:49 PM to 5:27 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 12.3 | 12.2 | 12.2 | 12.2 | 12.2 | 12.2 | 12.2 | 12.2 | 12.2 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 |
| Sunrise (AM) | 5:33 | 5:33 | 5:33 | 5:33 | 5:33 | 5:33 | 5:33 | 5:33 | 5:33 | 5:33 | 5:33 | 5:33 | 5:33 | 5:33 | 5:33 | 5:33 | 5:33 | 5:33 | 5:33 | 5:33 | 5:33 | 5:33 | 5:33 | 5:33 | 5:33 | 5:34 | 5:34 | 5:34 | 5:34 | 5:34 |
| Sunset (PM) | 5:49 | 5:48 | 5:47 | 5:47 | 5:46 | 5:45 | 5:44 | 5:44 | 5:43 | 5:42 | 5:41 | 5:41 | 5:40 | 5:39 | 5:38 | 5:38 | 5:37 | 5:36 | 5:35 | 5:35 | 5:34 | 5:33 | 5:32 | 5:32 | 5:31 | 5:30 | 5:30 | 5:29 | 5:28 | 5:27 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 12.3 | 5:33 | 5:49 |
| 2 | 12.2 | 5:33 | 5:48 |
| 3 | 12.2 | 5:33 | 5:47 |
| 4 | 12.2 | 5:33 | 5:47 |
| 5 | 12.2 | 5:33 | 5:46 |
| 6 | 12.2 | 5:33 | 5:45 |
| 7 | 12.2 | 5:33 | 5:44 |
| 8 | 12.2 | 5:33 | 5:44 |
| 9 | 12.2 | 5:33 | 5:43 |
| 10 | 12.1 | 5:33 | 5:42 |
| 11 | 12.1 | 5:33 | 5:41 |
| 12 | 12.1 | 5:33 | 5:41 |
| 13 | 12.1 | 5:33 | 5:40 |
| 14 | 12.1 | 5:33 | 5:39 |
| 15 | 12.1 | 5:33 | 5:38 |
| 16 | 12.1 | 5:33 | 5:38 |
| 17 | 12.1 | 5:33 | 5:37 |
| 18 | 12.0 | 5:33 | 5:36 |
| 19 | 12.0 | 5:33 | 5:35 |
| 20 | 12.0 | 5:33 | 5:35 |
| 21 | 12.0 | 5:33 | 5:34 |
| 22 | 12.0 | 5:33 | 5:33 |
| 23 | 12.0 | 5:33 | 5:32 |
| 24 | 12.0 | 5:33 | 5:32 |
| 25 | 12.0 | 5:33 | 5:31 |
| 26 | 11.9 | 5:34 | 5:30 |
| 27 | 11.9 | 5:34 | 5:30 |
| 28 | 11.9 | 5:34 | 5:29 |
| 29 | 11.9 | 5:34 | 5:28 |
| 30 | 11.9 | 5:34 | 5:27 |
Solar energy in September
Average shortwave solar energy reaching the ground each day in September, about 6.16 kWh/m².
For context, solar energy here swings from a low near 5.4 kWh/m² to a high of 7.36 kWh/m² in April across the year — September's 6.16 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 5.7 | 5.8 | 5.8 | 5.8 | 5.8 | 5.9 | 5.9 | 6.0 | 6.0 | 6.0 | 6.0 | 6.1 | 6.1 | 6.1 | 6.2 | 6.2 | 6.2 | 6.2 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 |
| Level | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 5.7 | Bright |
| 2 | 5.8 | Bright |
| 3 | 5.8 | Bright |
| 4 | 5.8 | Bright |
| 5 | 5.8 | Bright |
| 6 | 5.9 | Bright |
| 7 | 5.9 | Bright |
| 8 | 6.0 | Bright |
| 9 | 6.0 | Bright |
| 10 | 6.0 | Intense |
| 11 | 6.0 | Intense |
| 12 | 6.1 | Intense |
| 13 | 6.1 | Intense |
| 14 | 6.1 | Intense |
| 15 | 6.2 | Intense |
| 16 | 6.2 | Intense |
| 17 | 6.2 | Intense |
| 18 | 6.2 | Intense |
| 19 | 6.3 | Intense |
| 20 | 6.3 | Intense |
| 21 | 6.3 | Intense |
| 22 | 6.3 | Intense |
| 23 | 6.3 | Intense |
| 24 | 6.3 | Intense |
| 25 | 6.3 | Intense |
| 26 | 6.3 | Intense |
| 27 | 6.3 | Intense |
| 28 | 6.3 | Intense |
| 29 | 6.3 | Intense |
| 30 | 6.3 | Intense |
Hazard calendar for Umm Hājar
In September, Umm Hājar sits inside its dust season. The full year is below, with each hazard's peak months called out.
Umm Hājar sees seasonal dust haze (March–October), heaviest in April.
Is September a good time to visit Umm Hājar?
Our two travel scores rate September for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
September is a weaker month for outdoor sightseeing in Umm Hājar.
What to pack for Umm Hājar in September
From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In September, Umm Hājar sees daytime highs around 34°C and nights near 24°C. Pack light clothes and sun protection. Worth having: rain gear. About 11 days see rain.
UV index in Umm Hājar in September
Clear-sky midday UV in September 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 Umm Hājar peaks around August 16 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 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) | 9 | 12 | 11 | 10 | 10 | 11 | 11 | 13 | 11 | 11 | 9 | 8 |
| Level | Very high | Extreme | Extreme | Extreme | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 9 | Very high |
| Feb | 12 | Extreme |
| Mar | 11 | Extreme |
| Apr | 10 | Extreme |
| May | 10 | Very high |
| Jun | 11 | Extreme |
| Jul | 11 | Extreme |
| Aug | 13 | Extreme |
| Sep | 11 | Extreme |
| Oct | 11 | Extreme |
| Nov | 9 | Very high |
| Dec | 8 | Very high |
Air quality in Umm Hājar in September
Average fine-particle pollution (PM2.5) through the year — so you can see where September falls, not just the annual average.
Air quality in Umm Hājar is worst in March — around 71 µg/m³ PM2.5 (unhealthy), about 3.4× the cleanest month (September, 21 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) | 45 | 53 | 71 | 53 | 38 | 37 | 30 | 21 | 21 | 28 | 26 | 35 |
| Level | Poor | Poor | Unhealthy | Poor | Poor | Poor | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 45 | Poor |
| Feb | 53 | Poor |
| Mar | 71 | Unhealthy |
| Apr | 53 | Poor |
| May | 38 | Poor |
| Jun | 37 | Poor |
| Jul | 30 | Moderate |
| Aug | 21 | Moderate |
| Sep | 21 | Moderate |
| Oct | 28 | Moderate |
| Nov | 26 | Moderate |
| Dec | 35 | Moderate |
Where is Umm Hājar?
Umm Hājar sits at 13.3°N, 19.7°E, 397 m above sea level, in Chad. The nearest listed city is Mangalmé, 105 km away.
Topography around Umm Hājar
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Umm Hājar.
Within 3 km, the terrain around Umm Hājar has only modest variations in elevation — a maximum elevation change of 11 m around an average of 390 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 43 m; within 80 km, significant variations in elevation — a maximum elevation change of 295 m.
The land around Umm Hājar is covered by grassland (78%) within 3 km, grassland (91%) within 16 km, and grassland (92%) within 80 km.
Chad travel facts
- Travel advisory
- Level 4
- Do Not Travel
- Power plugs
- Type C / D / E / F
- 220 V · 50 Hz
- Prices
- ≈ 35% of US
- price level, 2025
- GDP per capita
- $1,022
- 2025
- Happiness
- 4.4 / 10
- World Happiness, 2025
- Safe drinking water
- 6%
- of population, 2024
- Road deaths
- 32.4
- per 100k/yr, 2019
- Income group
- Low
- World Bank
- 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 Umm Hājar (13.2954°, 19.6966°, elevation 397 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).