4 Billion Years On

Gambia Climate – July 2026 Update

Top 5 Cities: Banjul, Serekunda, Brikama, Bakau, and Farafenni

Temperature, rainfall and emissions data for Gambia

A fresh climate update for Gambia is being generated…

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At a Glance

Temperature – Average

Gambia
Global
Land + Ocean
Jul
+1.6°C· 6th
28.7°C
+1.0°C· 2nd
17.0°C
Record
29.3°C (2021)
17.0°C (2024)
May–Jul
+1.1°C· 9th
29.6°C
+1.0°C· 2nd
16.5°C
Record
30.1°C (2023)
16.5°C (2024)
2025
+0.8°C· 14th
28.0°C
+1.0°C· 3rd
15.0°C
Record
28.4°C (2020)
15.2°C (2024)
Headline: anomaly vs your selected baseline (falls back to the 1961–1990 mean for a column without enough history for it) · Small figure: the actual value · Record = value on record for the ranking above

Climate Map – Global

Source: NOAA Climate at a Glance (countries & continents) · Met Office (UK) · US states & climate regions. Anomalies are vs the 1961–1990 baseline. See methodology.

Typical Climate – Gambia

Köppen BSh · Arid

Gambia has a arid climate (Köppen BSh: Hot steppe), with only modest temperature variation through the year, but a pronounced wet and dry season. April is typically the warmest month, averaging 30.1°C, while January is the coldest at 25.7°C. Annual precipitation averages around 798mm, concentrated mostly in the wet season.

Warmest month
Apr 30°C
Coldest month
Jan 26°C
Annual rainfall
798mm
Wettest month
Aug 262mm

Monthly climate normals (20162025) - bar colour and height show average temperature, the shaded area shows average monthly precipitation.

Data: Our World in Data / NOAA (precipitation: GPCC (DWD); frost: World Bank CCKP).

Long-Term Trends

Combined TimelineGambia

Right axis: everything else standardized to standard deviations (σ) from its own average, since mm/hours/days aren't directly comparable to °C or to each other.

MetricTemperature
10-Yr AverageActual Year

Data: Our World in Data / NOAA (precipitation: GPCC (DWD); frost: World Bank CCKP).

Heatwave Days – Gambia

Warm Spell Duration Index (WSDI) - the WMO/ETCCDI heatwave measure: days in a 6+ day run above the local 90th-percentile temperature for that time of year.

Heatwave Days per Year2020 (Record)10-Yr Avg

Data: World Bank Climate Change Knowledge Portal (ERA5-derived). Refreshed roughly 1-2x/year, ~7-8 months behind present.

Year-on-Year Trends

The 4byo Climate Helix – Gambia

1940202619611990 baselineColdest (1943)20162025 meanWarmest (2020)2026 so far
2026Jul
WetDryJanFebMarAprMayJunJulAugSepOctNovDec1891-19202016-25Wet Start+3 days1891-19202016-25Wet End+7 days22°24°26°28°30°
Temp
28.4°C
+1.2 vs base
Precipitation
8mm
-796 vs base
Playback
8×
Mode
Presets

Data: Our World in Data / NOAA (precipitation: GPCC (DWD); frost: World Bank CCKP).

Monthly TemperatureGambia

All years since 19432020 (Warmest)1943 (Coldest)2026 (Current Year)

Background lines show the last 40 years (plus the record year and its opposite, wherever they fall).

Data: Our World in Data / NOAA (precipitation: GPCC (DWD); frost: World Bank CCKP).

Records – Gambia

Latest data Jul 2026
Warmest year
2020
28.4°C
Coldest year
1943
25.9°C
2026 so far
#15/87
28.4°C

Our World in Data / NOAA (precipitation: GPCC (DWD); frost: World Bank CCKP) - Anomalies vs 1901-2000 mean

Shifting Seasons

Wet / dry seasonsKöppen Aw · Tropical

Gambia doesn't have a warm/cold cycle - its monthly temperature range is only 4.6°C across the year - but it does have a strong wet/dry cycle (the wettest month gets 357× as much rain as the driest). So we track how the wet season has shifted instead.

Shifting wet season
4 days Longer
Wet Season
1891–1920 Baseline: 20 Jul → 6 Sept · 48 days
2016–2025 Now: 23 Jul → 13 Sept · 52 days
J
F
M
A
M
J
J
A
S
O
N
D
Onset 3 days LaterEnd 7 days Later
-14.8% annual rain
baseline yr·recent yr·ring = global temp anomaly
Wet-season onset
20 Jul23 Jul
3 days Later
When 25% of annual rain has fallen
Wet-season end
6 Sept13 Sept
7 days Later
When 75% of annual rain has fallen
Peak-rain month
AugAug
unchanged
Wet months: 43

Monthly precipitation climatology. A “wet month” exceeds the baseline monthly mean (dashed gold line). Biggest month-to-month shift: Aug (-95 mm, -27%).

Data: Our World in Data / NOAA (precipitation: GPCC (DWD); frost: World Bank CCKP).

Emissions & Energy

Explore

Explore Climate Data

Data Sources

Data Sources for Gambia

Every figure on this page is sourced from official, openly published climate datasets. Anomalies are calculated against the 1961–1990 baseline (temperature) and 1991–2020 (rainfall, sunshine, frost) - see the Methodology & Sources page for the complete dataset list and update calendar.

FAQs

FAQs

How is the climate in Gambia changing?

Gambia is warming in line with the rest of the world. The page above shows the latest monthly temperature anomaly versus the 1961-1990 baseline, the long-term annual trend, and the region's rank in the historical record. The headline panel also shows the long-term trend rate per decade and the warmest and coolest years on file.

What is the climate like in Gambia?

Gambia has a arid climate (Köppen BSh: Hot steppe), with only modest temperature variation through the year, but a pronounced wet and dry season. April is typically the warmest month, averaging 30.1°C, while January is the coldest at 25.7°C. Annual precipitation averages around 798mm, concentrated mostly in the wet season.

Where does the climate data for Gambia come from?

Climate data for Gambia comes from Our World in Data, sourcing Copernicus ERA5 and HadCRUT5 (national temperature anomaly) and the Global Carbon Project via Our World in Data (CO₂ emissions), refreshed every month, when the upstream temperature and rainfall data are refreshed.

What is the climate baseline used on this page?

Anomalies on this page are calculated against the 1961-1990 climatological baseline, which is the standard reference period used by the Met Office, NOAA, IPCC and most national climate services. Some panels also show the source-native 1901-2000 (NOAA) or 1991-2020 (WMO) baselines for verification. See Methodology & Sources for the full reference.

Which areas does the Gambia climate data cover?

The Gambia climate profile covers Banjul, Serekunda, Brikama, Bakau and surrounding areas. Temperature, rainfall and emissions data for Gambia

How often is the Gambia climate update refreshed?

The Gambia climate update is refreshed monthly, typically a few days after the previous month closes and the upstream provider (Met Office HadUK-Grid, NOAA Climate at a Glance, Copernicus ERA5 or the Global Carbon Project) publishes its update. See the Climate Rankings for cross-region comparisons.

What counts as a Heatwave Day on the Gambia climate page?

Heatwave Days use the Warm Spell Duration Index (WSDI) - the WMO/ETCCDI-standard heatwave measure: days that are part of a run of 6 or more consecutive days above the local 90th-percentile temperature for that calendar day. The 90th-percentile threshold varies by time of year (a hot day in January is judged differently to one in July) but is fixed to the 1961-1990 baseline for every year shown - it does not shift as the climate warms, which is why Heatwave Days trend upward over time.

Does the Gambia climate page include frost and snow data?

Yes. Frost Days (days with a minimum temperature below 0°C, World Bank CCKP) and snow water-equivalent (GPCC) are shown alongside temperature and precipitation, each measured against the 1961-1990 baseline where a like-for-like historical comparison is available.