Mirriah in Summer
In summer (June, July and August), Mirriah sees average daytime highs around 35°C and overnight lows near 25°C, with 223 mm of rain over about 34 wet days across the season. It is the 3rd-warmest season and the wettest season of the year.
Over the season highs ease from about 39°C in early June to 33°C by late August. The sky is clear or mostly clear about 39% of the time across summer, and the air most often feels oppressive.
Summer is Mirriah's 3rd-best season to visit on our travel score. For the whole year in context, see Mirriah's year-round climate.
- Avg daytime high
- 35°C
- 3rd-warmest season
- Avg overnight low
- 25°C
- Rainfall
- 223 mm
- 34 wet days
- Avg wind
- 12 km/h
- Travel score
- 2.3
- 3rd-best season
- Months
- Jun · Jul · Aug
Temperature in Mirriah in Summer
Over the season highs ease from about 39°C in early June to 33°C by late August.
A typical summer day in Mirriah reaches about 35°C and drops to 25°C overnight. The warmest of the three months is June, the coolest August.
How summer really feels in Mirriah
Once humidity and wind are folded in, summer brings about 92 days that feel above 32°C and 0 that feel at or below 0°C.
The story in summer is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Mirriah weather by month
How the three summer months (June, July and August) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 29° / 14° | 0 | 0 | 11.3 | 7.1 |
| Feb | 33° / 17° | 0 | 0 | 11.5 | 4.9 |
| Mar | 37° / 21° | 0 | 0 | 11.9 | 2.1 |
| Apr | 40° / 25° | 1 | 0.3 | 12.3 | 0.2 |
| May | 40° / 27° | 6 | 1.9 | 12.6 | 0.1 |
| Jun | 38° / 27° | 15 | 4.2 | 12.8 | 1.1 |
| Jul | 34° / 25° | 73 | 13.1 | 12.7 | 2.6 |
| Aug | 32° / 24° | 135 | 16.5 | 12.5 | 3.3 |
| Sep | 35° / 24° | 37 | 6.6 | 12.1 | 2.8 |
| Oct | 37° / 23° | 4 | 0.9 | 11.7 | 2.1 |
| Nov | 34° / 19° | 0 | 0 | 11.4 | 3.9 |
| Dec | 30° / 15° | 0 | 0 | 11.2 | 6.5 |
Cloud cover in Summer
The sky is clear or mostly clear about 39% of the time across summer.
Chance of precipitation in Summer
Mirriah gets around 223 mm of rain over 34 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 12 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 12 h 42 min in early June to 12 h 18 min by late August. The lit band spans sunrise to sunset each day.
Solar energy in Summer
Average shortwave solar energy reaching the ground each day across summer, about 6.4 kWh/m².
Hazard calendar for Mirriah
In summer, Mirriah overlaps its dust season. The full year is below, with each hazard's peak months called out.
Mirriah sees dust haze year-round, heaviest in April.
Is summer a good time to visit Mirriah?
Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
summer is a weaker month for outdoor sightseeing in Mirriah.
What to pack for Mirriah in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Mirriah sees daytime highs around 35°C and nights near 25°C. Pack light clothes, rain gear and sun protection. About 34 days see rain.
UV index in Mirriah in Summer
Clear-sky midday UV across summer averages around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Mirriah peaks around August 14 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 17 at about 7 (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 | 12 | 9 | 10 | 12 | 13 | 12 | 11 | 9 | 7 |
| 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 | 12 | Extreme |
| May | 9 | Very high |
| Jun | 10 | Extreme |
| Jul | 12 | Extreme |
| Aug | 13 | Extreme |
| Sep | 12 | Extreme |
| Oct | 11 | Extreme |
| Nov | 9 | Very high |
| Dec | 7 | Very high |
Air quality in Mirriah in Summer
Average fine-particle pollution (PM2.5) through the year — so you can see where summer falls, not just the annual average.
Air quality in Mirriah is worst in February — around 103 µg/m³ PM2.5 (unhealthy), about 3.9× the cleanest month (August, 26 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) | 98 | 103 | 96 | 81 | 63 | 54 | 35 | 26 | 35 | 57 | 65 | 91 |
| Level | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Poor | Moderate | Moderate | Poor | Unhealthy | Unhealthy | Unhealthy |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 98 | Unhealthy |
| Feb | 103 | Unhealthy |
| Mar | 96 | Unhealthy |
| Apr | 81 | Unhealthy |
| May | 63 | Unhealthy |
| Jun | 54 | Poor |
| Jul | 35 | Moderate |
| Aug | 26 | Moderate |
| Sep | 35 | Poor |
| Oct | 57 | Unhealthy |
| Nov | 65 | Unhealthy |
| Dec | 91 | Unhealthy |
Where is Mirriah?
Mirriah sits at 13.7°N, 9.2°E, 407 m above sea level, in Niger. The nearest listed city is Zinder, 21 km away.
Topography around Mirriah
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Mirriah.
Within 3 km, the terrain around Mirriah has only modest variations in elevation — a maximum elevation change of 47 m around an average of 413 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 147 m; within 80 km, significant variations in elevation — a maximum elevation change of 287 m.
The land around Mirriah is covered by grassland (60%) and cropland (30%) within 3 km, cropland (50%) and grassland (47%) within 16 km, and grassland (55%) and cropland (44%) within 80 km.
Niger travel facts
- Travel advisory
- Level 4
- Do Not Travel
- Power plugs
- Type A / B / C / D / E / F
- 220 V · 50 Hz
- Prices
- ≈ 36% of US
- price level, 2025
- GDP per capita
- $775
- 2025
- Happiness
- 4.9 / 10
- World Happiness, 2025
- Homicide rate
- 4.4
- per 100k, 2012
- Road deaths
- 25.5
- 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 Mirriah (13.7073°, 9.1501°, elevation 407 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.