Say in Fall
In fall (September, October and November), Say sees average daytime highs around 35°C and overnight lows near 23°C, with 71 mm of rain over about 12 wet days across the season. It is the 2nd-warmest season and the 2nd-wettest season.
Over the season highs climb from about 32°C in early September to 35°C by late November. The sky is clear or mostly clear about 54% of the time across fall, and the air most often feels oppressive.
Fall is Say's 3rd-best season to visit on our travel score. For the whole year in context, see Say's year-round climate.
- Avg daytime high
- 35°C
- 2nd-warmest season
- Avg overnight low
- 23°C
- Rainfall
- 71 mm
- 12 wet days
- Avg wind
- 9 km/h
- Travel score
- 2.6
- 3rd-best season
- Months
- Sep · Oct · Nov
Temperature in Say in Fall
Over the season highs climb from about 32°C in early September to 35°C by late November.
A typical fall day in Say reaches about 35°C and drops to 23°C overnight. The warmest of the three months is October, the coolest November.
How fall really feels in Say
Once humidity and wind are folded in, fall brings about 91 days that feel above 32°C and 0 that feel at or below 0°C.
The story in fall is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Say weather by month
How the three fall months (September, October and November) 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 Fall
The sky is clear or mostly clear about 54% of the time across fall.
Chance of precipitation in Fall
Say gets around 71 mm of rain over 12 wet days across fall. The line is the day-by-day chance of measurable precipitation.
Humidity in Fall
Most of fall feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Fall
Winds average 9 km/h across fall.
Sunrise & sunset in Fall
Daylight runs from about 12 h 18 min in early September to 11 h 18 min by late November. The lit band spans sunrise to sunset each day.
Solar energy in Fall
Average shortwave solar energy reaching the ground each day across fall, about 6.1 kWh/m².
Hazard calendar for Say
In fall, 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 fall a good time to visit Say?
Our two travel scores rate fall for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
fall is a weaker month for outdoor sightseeing in Say.
What to pack for Say in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Say sees daytime highs around 35°C and nights near 23°C. Pack light clothes and sun protection. Worth having: rain gear. About 12 days see rain.
UV index in Say in Fall
Clear-sky midday UV across fall averages around 10 (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 Fall
Average fine-particle pollution (PM2.5) through the year — so you can see where fall 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.