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Gusau weather by month: averages, rainfall & climate trends

Temperatures in Gusau stay within a narrow band all year, with the monthly means just 8.7°C apart. Rainfall is strongly seasonal: the bulk of the year's rain falls between June and September. Gusau weather by month: average temperatures, rainfall, extremes and how the climate has changed since 1940.

Today vs average

+1.5°Chigh above average

35° / 21°Today
34° / 20°Average
see today in detail →

How it's changed

+1.4°Caverage temperature, 2016–2025 vs 1940–1949average temperature vs 1940–49296days above 30°C a year now (2016–2025) · 267 in the 1940sdays above 30°C · 267 in the 1940s+1.4°C vs the 1940s · see how it's changed →
Weather by montha typical year, averaged over the full recordJanuary, rain 0 mmhigh 30°low 16°February, rain 0 mmhigh 33°low 18°March, rain 1 mmhigh 37°low 21°April, rain 9 mmhigh 38°low 24°May, rain 41 mmhigh 37°low 25°June, rain 74 mmhigh 34°low 24°July, rain 147 mmhigh 30°low 22°August, rain 218 mmhigh 29°low 22°September, rain 123 mmhigh 30°low 22°October, rain 26 mmhigh 33°low 21°November, rain 0 mmhigh 33°low 18°December, rain 0 mmhigh 31°low 16°wettest month August, 218 mm · 641 mm a yearsee month by month →

Right now

What it's doing today vs the historical average for this date.
Overcast

Right now

35.1°

33°feels like
21%humidity
10°dew point
17 km/hfrom E
UV index7.0
sunrise06:24sunset18:12day length11h 48m
TodayPartly cloudy35°21°
ThuClear35°19°
FriMostly clear35°17°
SatMostly clear35°17°
SunClear35°15°
MonClear36°15°
TuePartly cloudy34°21°

On this date: October 21

Today (forecast)
35° / 21°
Average for October 21
34° / 20°

High above average · +1.5°C

  • Highest since 1940: 36.6° · 1940
  • Lowest since 1940: 15.0° · 1945
  • One year ago: 35° / 21°

Every October 21 in history, coldest to hottest

▲ Daily highs▼ Daily lows

Dots show daily highs (top) and lows (bottom) for each October 21 on record (n = 87). Outlined dots are today's forecast.

Area we sample

Each city's history comes from one ERA5 grid cell, about 28 km across, shown by the dashed box. Near mountains or coasts, conditions can vary across the cell.

Location & data

Historical weather for Gusau is sampled from the ECMWF ERA5 reanalysis at 12.17°N, 6.66°E, with daily records since 1940.

Coordinates
12.17°N, 6.66°E
Time zone
Africa/Lagos
Period
1940–2026
Data source
ERA5 (ECMWF)

Last 30 days

23 of the last 31 days were warmer than the historical average for that date. Average difference: +0.7°C.

Each bar is one day, from morning low to afternoon high. Warm-colored bars are days whose mean ran above average; cool bars ran below. The dot inside the bar is the daily mean. The shaded band is the typical 10–90% range expected for that date. Average = the day's mean temperature averaged across every year of record (1940–2026) for that calendar date.

This date over the years

One dot per year, showing the mean temperature on this calendar date. Dots are warmer or cooler than the long-term average (dashed line); the shaded band is the typical 10–90% range, and the highlighted dot is today's forecast. Based on ERA5 reanalysis: modelled estimates, not station readings.

Weather by month

Average temperatures and rainfall for each month: a typical year, from the full record.

Climate overview

The warmest month is April, with typical afternoon highs of 38.2°C and nights around 24.3°C. On about 240 nights a year, the temperature never drops below 20°C. The coolest month is January, when afternoons reach about 30.4°C and overnight lows sit around 15.6°C.

In total, Gusau averages about 641 mm of precipitation a year; August is usually the wettest month (218 mm), while December passes with hardly any rain at all.

The record here starts in 1940, and since then the annual mean in Gusau has climbed 1.4°C from the first ten years to the last ten. You can follow the shift year by year in the charts below.

Climate graph (climograph)

April is the warmest month, January the coolest: a yearly swing of 9°C. Wettest month: August (~218 mm). Whole year averages ~641 mm of rain.

Bars = average monthly rainfall (right axis). Lines = average daily high and low (left axis). Average = each month's value averaged across every year of record (1940–2026).

Monthly wind

Average daily peak wind at 10 m, by month.

Monthly solar energy

Average daily incoming solar energy in megajoules per square metre: the record's own proxy for how sunny the month is.

Gusau month by month: what to expect

Typical conditions for each month, averaged across the full record (since 1940). Daylight is the time from sunrise to sunset. Highest and Lowest are the most extreme values in the ERA5 dataset (modelled since 1940), so they can differ from official weather-station readings.

MonthAvg highAvg lowRainDaylightHighestLowest
January30.4°15.6°0 mm11.4 h39.1° (1998)8.1° (1956)
February33.2°17.6°0 mm11.6 h40.8° (2010)9.7° (1953)
March36.6°21.1°1 mm11.9 h41.8° (2007)13.3° (1945)
April38.2°24.3°9 mm12.3 h43.3° (2010)15.5° (1942)
May36.8°25.4°41 mm12.6 h41.7° (2016)17.5° (1945)
June33.5°24.0°74 mm12.7 h40.2° (1944)19.5° (1943)
July30.1°22.5°147 mm12.7 h38.0° (1941)18.6° (1944)
August28.8°21.7°218 mm12.4 h35.1° (1941)18.8° (1950)
September30.3°21.8°123 mm12.1 h36.2° (1940)17.8° (1964)
October33.1°20.7°26 mm11.7 h38.2° (1940)14.1° (1964)
November33.0°17.7°0 mm11.4 h37.4° (2010)11.6° (1951)
December30.7°15.8°0 mm11.3 h36.5° (2025)9.1° (1955)

How it's changed

Year-by-year signals from 1940 to today.

Climate stripes

Annual mean shifted from 1940–1949 to 2016–2025 by +1.4°C.

Each vertical stripe is one year. Color encodes how much that year's annual mean differed from the long-term average. Average = each year's annual mean compared to the average of all years (1940–2026). cooler ← → warmer

Annual mean temperature

Long-term trend: +0.22°C per decade.

One point per year, showing the temperature averaged across the whole year. The dashed line is the least-squares long-term trend. Based on ERA5 reanalysis: modelled estimates, not station readings.

Seasonal warming

Mar–May is warming fastest: +0.33°C per decade.

Each faint line is one three-month period's average per year; the bold dashed line is its long-term trend. Different parts of the year often warm at different rates. Based on ERA5 reanalysis: modelled estimates, not station readings.

Hot days vs frost days

Days ≥ 30°C per year: 267.0 early in the record → 295.5 recently. Frost days: 0 → 0.

Thin lines are raw yearly counts; thick lines are the smoothed trend that removes year-to-year noise. The hot-day threshold is auto-picked per city so the line actually moves. Average = a centered 5-year rolling average to smooth weather noise.

Yearly hot & cold extremes

Hottest day since 1940 in 2010, coldest in 1956: 43.3°C / 8.1°C.

One point per year: the single hottest and coldest day recorded that year.

Annual rainfall

~641 mm/year on average. Last decade: +6% vs that average. Long-term trend: −12 mm per decade.

One bar per year of total rainfall. Dashed line is the long-term average. Average = the average annual rainfall across every year of record (1940–2026).

Day-by-day grid

Each tiny square is one calendar day across the full record, about 30,000 days per city. Use the mode switch above the chart: Anomaly colors each day by how far it ran from the historical average for that date (red = warmer, blue = cooler), Daily mean temp shows the absolute mean temperature for the day (useful to see seasons and heatwaves), and Precipitation shows daily rainfall (useful to spot wet/dry seasons and droughts). Average = the long-term average for that calendar date (1940–2026).

Frequently asked questions about Gusau

Which is the warmest month in Gusau?
On long-term average, the warmest month in Gusau is April (mean daily temperature of about 31.1°C) and the coolest is January (about 22.4°C).
How does today's temperature in Gusau compare to the historical average?
On October 21, 2026, Gusau is forecast to reach a high of 35.3°C and a low of 20.7°C. The long-term average for this date (the full record since 1940) is a high of 33.8°C and a low of 20.1°C, so today's high is 1.5°C warmer than that average.
How much has Gusau warmed since 1940?
Comparing the first decade of the record (1940–1949) with the most recent (2016–2025), the annual mean temperature in Gusau is about 1.4°C warmer.
How much does it rain in Gusau?
Gusau receives about 641 mm of precipitation per year on long-term average, with August typically the wettest month.
What is the average temperature in Gusau?
Over the full record (since 1940), the annual mean temperature in Gusau is about 26.4°C. The warmest month is April and the coolest is January.
What are the average temperatures in Gusau by month?
Average daily highs and lows for each month in Gusau (°C, full record since 1940): January 30°/16°, February 33°/18°, March 37°/21°, April 38°/24°, May 37°/25°, June 34°/24°, July 30°/22°, August 29°/22°, September 30°/22°, October 33°/21°, November 33°/18°, December 31°/16°.
What is the weather like in Gusau in summer?
Summer in Gusau (June to August) is wet and hot. June is still 34°C by day and 24°C at night; by August it is down to 29°C and 22°C. Rain rises from 74 mm in June to 218 mm in August. It is the wettest season of the year.
What is the weather like in Gusau in winter?
December to February is winter in Gusau, and it is dry and hot. Afternoons run 30–33°C and nights 16–18°C; January is the coldest month. Almost no rain.
What is the weather like in Gusau in spring?
In spring, March through May, Gusau is dry and really hot. Expect 37–38°C by day and 21–25°C at night, with April the warmest month. Rain rises from 1 mm in March to 41 mm in May.
What is the weather like in Gusau in autumn?
Autumn in Gusau (September to November) is hot. Daytime highs sit at 30–33°C and nights at 18–22°C; November is the coldest month. Rain eases through the season, 123 mm in September to 0 mm in November.

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