Kollo in Summer
In summer (June, July and August), Kollo sees average daytime highs around 34°C and overnight lows near 26°C, with 225 mm of rain over about 33 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 38°C in early June to 32°C by late August. The sky is clear or mostly clear about 37% of the time across summer, and the air most often feels oppressive.
Summer is Kollo's 2nd-best season to visit on our travel score. For the whole year in context, see Kollo's year-round climate.
- Avg daytime high
- 34°C
- 3rd-warmest season
- Avg overnight low
- 26°C
- Rainfall
- 225 mm
- 33 wet days
- Avg wind
- 12 km/h
- Travel score
- 2.7
- 2nd-best season
- Months
- Jun · Jul · Aug
Temperature in Kollo in Summer
Over the season highs ease from about 38°C in early June to 32°C by late August.
A typical summer day in Kollo reaches about 34°C and drops to 26°C overnight. The warmest of the three months is June, the coolest August.
How summer really feels in Kollo
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.
Kollo 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 | 31° / 17° | 0 | 0 | 11.3 | 5.7 |
| Feb | 34° / 20° | 0 | 0.1 | 11.6 | 3.7 |
| Mar | 38° / 23° | 1 | 0.3 | 11.9 | 1.2 |
| Apr | 40° / 27° | 3 | 0.9 | 12.3 | 0.0 |
| May | 40° / 29° | 9 | 2.5 | 12.6 | 0.3 |
| Jun | 37° / 27° | 25 | 5.4 | 12.8 | 1.7 |
| Jul | 34° / 26° | 68 | 11.6 | 12.7 | 3.0 |
| Aug | 32° / 24° | 132 | 15.7 | 12.4 | 3.5 |
| Sep | 34° / 25° | 50 | 7.5 | 12.1 | 3.2 |
| Oct | 37° / 25° | 9 | 2.3 | 11.7 | 1.8 |
| Nov | 36° / 20° | 0 | 0 | 11.4 | 2.6 |
| Dec | 33° / 18° | 0 | 0 | 11.2 | 4.9 |
Cloud cover in Summer
The sky is clear or mostly clear about 37% of the time across summer.
Chance of precipitation in Summer
Kollo gets around 225 mm of rain over 33 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 6.2 kWh/m².
Hazard calendar for Kollo
In summer, Kollo overlaps its dust season. The full year is below, with each hazard's peak months called out.
Kollo sees seasonal dust haze (January–July), heaviest in March.
Is summer a good time to visit Kollo?
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 Kollo.
What to pack for Kollo in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Kollo sees daytime highs around 34°C and nights near 26°C. Pack light clothes, rain gear and sun protection. About 33 days see rain.
UV index in Kollo 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 Kollo peaks around August 18 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 13 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) | 10 | 11 | 13 | 10 | 10 | 11 | 11 | 13 | 12 | 11 | 9 | 8 |
| Level | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 10 | Very high |
| Feb | 11 | Extreme |
| Mar | 13 | Extreme |
| Apr | 10 | Extreme |
| May | 10 | Extreme |
| Jun | 11 | Extreme |
| Jul | 11 | Extreme |
| Aug | 13 | Extreme |
| Sep | 12 | Extreme |
| Oct | 11 | Extreme |
| Nov | 9 | Very high |
| Dec | 8 | Very high |
Air quality in Kollo 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 Kollo is worst in February — around 97 µg/m³ PM2.5 (unhealthy), about 5.0× the cleanest month (August, 20 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) | 87 | 97 | 96 | 74 | 46 | 34 | 22 | 20 | 26 | 48 | 62 | 77 |
| Level | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Poor | Moderate | Moderate | Moderate | Moderate | Poor | Unhealthy | Unhealthy |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 87 | Unhealthy |
| Feb | 97 | Unhealthy |
| Mar | 96 | Unhealthy |
| Apr | 74 | Unhealthy |
| May | 46 | Poor |
| Jun | 34 | Moderate |
| Jul | 22 | Moderate |
| Aug | 20 | Moderate |
| Sep | 26 | Moderate |
| Oct | 48 | Poor |
| Nov | 62 | Unhealthy |
| Dec | 77 | Unhealthy |
Where is Kollo?
Kollo sits at 13.3°N, 2.3°E, 189 m above sea level, in Niger. The nearest listed city is Youri Kourtéré, 10 km away.
Topography around Kollo
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Kollo.
Within 3 km, the terrain around Kollo has only modest variations in elevation — a maximum elevation change of 32 m around an average of 183 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 97 m; within 80 km, only modest variations in elevation — a maximum elevation change of 119 m.
The land around Kollo is covered by grassland (46%) and cropland (30%) within 3 km, grassland (61%) within 16 km, and grassland (65%) 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 Kollo (13.3043°, 2.339°, elevation 189 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.