Biu in Fall
In fall (September, October and November), Biu sees average daytime highs around 32°C and overnight lows near 21°C, with 179 mm of rain over about 34 wet days across the season. It is the 3rd-warmest season and the 2nd-wettest season.
Over the season highs climb from about 28°C in early September to 33°C by late November. The sky is clear or mostly clear about 30% of the time across fall, and the air most often feels oppressive.
Fall is Biu's 2nd-best season to visit on our travel score. For the whole year in context, see Biu's year-round climate.
- Avg daytime high
- 32°C
- 3rd-warmest season
- Avg overnight low
- 21°C
- Rainfall
- 179 mm
- 34 wet days
- Avg wind
- 8 km/h
- Travel score
- 3.9
- 2nd-best season
- Months
- Sep · Oct · Nov
Temperature in Biu in Fall
Over the season highs climb from about 28°C in early September to 33°C by late November.
A typical fall day in Biu reaches about 32°C and drops to 21°C overnight. The warmest of the three months is November, the coolest November.
How fall really feels in Biu
Once humidity and wind are folded in, fall brings about 80 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.
Biu 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 | 11.4 | 5.4 |
| Feb | 35° / 20° | 0 | 0 | 11.6 | 3.4 |
| Mar | 38° / 23° | 1 | 0.3 | 11.9 | 1.4 |
| Apr | 38° / 26° | 17 | 5.1 | 12.2 | 1.1 |
| May | 35° / 25° | 59 | 12.5 | 12.5 | 2.1 |
| Jun | 32° / 24° | 77 | 15.1 | 12.6 | 3.4 |
| Jul | 29° / 22° | 117 | 19.9 | 12.6 | 3.9 |
| Aug | 28° / 22° | 183 | 23.8 | 12.3 | 4.0 |
| Sep | 29° / 22° | 116 | 20.2 | 12.1 | 3.9 |
| Oct | 32° / 22° | 61 | 13.3 | 11.8 | 3.6 |
| Nov | 34° / 20° | 1 | 0.3 | 11.5 | 4.1 |
| Dec | 32° / 17° | 0 | 0 | 11.4 | 5.4 |
Cloud cover in Fall
The sky is clear or mostly clear about 30% of the time across fall.
Chance of precipitation in Fall
Biu gets around 179 mm of rain over 34 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 8 km/h across fall.
Sunrise & sunset in Fall
Daylight runs from about 12 h 12 min in early September to 11 h 24 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 5.9 kWh/m².
Hazard calendar for Biu
In fall, Biu overlaps its monsoon and dust season. The full year is below, with each hazard's peak months called out.
Biu's monsoon runs July–September, when most of the year's rain falls.
Biu sees seasonal dust haze (January–June), heaviest in March.
Is fall a good time to visit Biu?
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 Biu. The water and warmth also suit a beach or pool day.
What to pack for Biu in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Biu sees daytime highs around 32°C and nights near 21°C. Pack light clothes, rain gear and sun protection. About 34 days see rain.
UV index in Biu in Fall
Clear-sky midday UV across fall averages 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 Biu peaks around August 18 at about 12 (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) | 10 | 11 | 11 | 11 | 10 | 10 | 11 | 13 | 12 | 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 | 10 | Very high |
| Feb | 11 | Extreme |
| Mar | 11 | Extreme |
| Apr | 11 | Extreme |
| May | 10 | Very high |
| Jun | 10 | Extreme |
| Jul | 11 | Extreme |
| Aug | 13 | Extreme |
| Sep | 12 | Extreme |
| Oct | 11 | Extreme |
| Nov | 9 | Very high |
| Dec | 8 | Very high |
Air quality in Biu 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 Biu is worst in February — around 96 µg/m³ PM2.5 (unhealthy), about 4.3× the cleanest month (July, 22 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 | 96 | 96 | 68 | 38 | 31 | 22 | 25 | 31 | 49 | 57 | 79 |
| Level | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Poor | Moderate | Moderate | Moderate | Moderate | Poor | Unhealthy | Unhealthy |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 87 | Unhealthy |
| Feb | 96 | Unhealthy |
| Mar | 96 | Unhealthy |
| Apr | 68 | Unhealthy |
| May | 38 | Poor |
| Jun | 31 | Moderate |
| Jul | 22 | Moderate |
| Aug | 25 | Moderate |
| Sep | 31 | Moderate |
| Oct | 49 | Poor |
| Nov | 57 | Unhealthy |
| Dec | 79 | Unhealthy |
Where is Biu?
Biu sits at 10.6°N, 12.2°E, 762 m above sea level, in Nigeria. The nearest listed city is Gombi, 77 km away.
Topography around Biu
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Biu.
Within 3 km, the terrain around Biu has only modest variations in elevation — a maximum elevation change of 131 m around an average of 743 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 450 m; within 80 km, large variations in elevation — a maximum elevation change of 756 m.
The land around Biu is covered by cropland (35%), artificial surfaces (33%) and grassland (26%) within 3 km, cropland (51%) and grassland (42%) within 16 km, and cropland (43%) and grassland (38%) within 80 km.
Nigeria travel facts
- Travel advisory
- Level 3
- Reconsider Travel
- Power plugs
- Type D / G
- 230 V · 50 Hz
- Prices
- ≈ 13% of US
- price level, 2025
- GDP per capita
- $1,224
- 2025
- Happiness
- 4.8 / 10
- World Happiness, 2025
- Safe drinking water
- 30%
- of population, 2024
- Homicide rate
- 15.7
- per 100k, 2023
- Road deaths
- 20.7
- per 100k/yr, 2019
- Income group
- Lower middle
- World Bank
- English
- High
- EF EPI 569
- 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 Biu (10.6128°, 12.1946°, elevation 762 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.