Say in Summer
In summer (June, July and August), Say sees average daytime highs around 34°C and overnight lows near 25°C, with 260 mm of rain over about 38 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 33% of the time across summer, and the air most often feels oppressive.
Summer is Say's 2nd-best season to visit on our travel score. For the whole year in context, see Say's year-round climate.
- Avg daytime high
- 34°C
- 3rd-warmest season
- Avg overnight low
- 25°C
- Rainfall
- 260 mm
- 38 wet days
- Avg wind
- 11 km/h
- Travel score
- 2.8
- 2nd-best season
- Months
- Jun · Jul · Aug
Temperature in Say 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 Say reaches about 34°C and drops to 25°C overnight. The warmest of the three months is June, the coolest August.
How summer really feels in Say
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.
Say 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 | 32° / 17° | 0 | 0 | 11.3 | 5.6 |
| Feb | 35° / 20° | 0 | 0.1 | 11.6 | 3.5 |
| Mar | 39° / 24° | 2 | 0.4 | 11.9 | 1.0 |
| Apr | 41° / 27° | 3 | 1 | 12.3 | 0.0 |
| May | 40° / 29° | 12 | 3.2 | 12.6 | 0.3 |
| Jun | 37° / 27° | 30 | 6.8 | 12.8 | 1.9 |
| Jul | 33° / 25° | 78 | 13.2 | 12.7 | 3.1 |
| Aug | 32° / 24° | 152 | 17.6 | 12.4 | 3.4 |
| Sep | 33° / 25° | 60 | 9.3 | 12.1 | 3.3 |
| Oct | 37° / 25° | 12 | 3.1 | 11.7 | 2.0 |
| Nov | 36° / 20° | 0 | 0 | 11.4 | 2.6 |
| Dec | 33° / 18° | 0 | 0 | 11.2 | 4.8 |
Cloud cover in Summer
The sky is clear or mostly clear about 33% of the time across summer.
Chance of precipitation in Summer
Say gets around 260 mm of rain over 38 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 11 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 6.1 kWh/m².
Hazard calendar for Say
In summer, Say overlaps its dust season. The full year is below, with each hazard's peak months called out.
Say sees seasonal dust haze (January–July), heaviest in March.
Is summer a good time to visit Say?
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 Say.
What to pack for Say in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Say sees daytime highs around 34°C and nights near 25°C. Pack light clothes, rain gear and sun protection. About 38 days see rain.
UV index in Say 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 Say 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 Say 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 Say is worst in February — around 89 µg/m³ PM2.5 (unhealthy), about 6.0× the cleanest month (August, 15 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) | 78 | 89 | 85 | 61 | 35 | 26 | 17 | 15 | 20 | 40 | 61 | 71 |
| Level | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Moderate | Moderate | Moderate | Moderate | Moderate | Poor | Unhealthy | Unhealthy |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 78 | Unhealthy |
| Feb | 89 | Unhealthy |
| Mar | 85 | Unhealthy |
| Apr | 61 | Unhealthy |
| May | 35 | Moderate |
| Jun | 26 | Moderate |
| Jul | 17 | Moderate |
| Aug | 15 | Moderate |
| Sep | 20 | Moderate |
| Oct | 40 | Poor |
| Nov | 61 | Unhealthy |
| Dec | 71 | Unhealthy |
Where is Say?
Say sits at 13.1°N, 2.4°E, 181 m above sea level, in Niger. The nearest listed city is Kollo, 23 km away.
Topography around Say
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Say.
Within 3 km, the terrain around Say has only modest variations in elevation — a maximum elevation change of 48 m around an average of 185 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 93 m; within 80 km, only modest variations in elevation — a maximum elevation change of 124 m.
The land around Say is covered by grassland (28%) and cropland (27%) within 3 km, grassland (60%) within 16 km, and grassland (61%) 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 Say (13.1007°, 2.3689°, elevation 181 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.