4 Billion Years On

Belize Climate – July 2026 Update

Top 5 Cities: Belize City, San Ignacio, Belmopan, Orange Walk, and Dangriga

August update · ~12–15 September

Summary

Belize has experienced its 4th warmest May to July on record, driven by three consecutive months running 1.6°C warmer than the 1961 to 1990 baseline. July itself registered as the country's 6th warmest on record for the month, exacerbating agricultural drought watches across northern and central districts, with warmer-than-usual heat expected to persist into late autumn.

This month in numbers

Belize recorded an average temperature of 27.41°C in July 2026, placing 1.6°C above the 1961 to 1990 baseline to rank as the 6th warmest on record for the month across 87 years of data. The headline story stems from the broader May to July season, which averaged 27.92°C to rank as the 4th warmest May to July on record. On the global scale, land temperatures for May to July reached 2nd highest in historical records with a 1.5°C anomaly, while July globally ranked 3rd highest with a 1.6°C anomaly.

What changed

The sustained tropical heat marks a distinct shift from late winter, when February dipped 0.6°C below average before March aligned with long-term norms. Temperatures rose quickly through April (+0.6°C anomaly) before May, June, and July each recorded identical +1.6°C anomalies. In the long-term picture, Belize's warming trend stands at +1.48°C above baseline, following 2025's mean temperature of 26.03°C (its 7th warmest year on record) and the record high of 26.6°C set in 2024.

What’s driving change?

The elevated heat and reduced rainfall reflect broader tropical atmospheric patterns where ENSO phase swings and seasonal shifts disrupt typical rainfall distribution across Central America. On a regional level, mechanisms mean inland areas experience stronger temperature spikes than surrounding Caribbean waters.

Looking ahead

Seasonal forecasts from the National Meteorological Service of Belize indicate that temperatures are expected to remain warmer than usual through late autumn, accompanied by normal to below-normal rainfall across most districts.

Generated by Gemini from climate data and web sources

At a Glance

Temperature – Average

Belize
Global
Land + Ocean
LatestAug
+1.7°C· 7th
27.6°C
Due ~5–25 Sep
Jul
+1.8°C· 6th
27.4°C
+1.0°C· 2nd
17.0°C
Record
27.7°C (2019)
17.0°C (2024)
May–Jul
+1.8°C· 4th
27.9°C
+1.0°C· 2nd
16.5°C
Record
28.4°C (2024)
16.5°C (2024)
2025
+1.4°C· 7th
26.0°C
+1.0°C· 3rd
15.0°C
Record
26.6°C (2024)
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 – Belize

Köppen Am · Tropical

Belize has a tropical climate (Köppen Am: Tropical monsoon), with only modest temperature variation through the year, but a pronounced wet and dry season. May is typically the warmest month, averaging 28.2°C, while January is the coldest at 23.5°C. Annual precipitation averages around 2057mm, concentrated mostly in the wet season.

Warmest month
May 28°C
Coldest month
Jan 24°C
Annual rainfall
2057mm
Wettest month
Jun 296mm

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).

Combined TimelineBelize

Precipitation, Sunshine, Frost and Snow are converted to standard deviations from their own average so they can share an axis with Temperature.

MetricTemperature
10-Yr AverageActual Year

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

Heatwave Days – Belize

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

Heatwave days per year2019 (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 – Belize

1940202619611990 baselineColdest (1943)20162025 meanWarmest (2024)2026 so far
2026Aug
2024
WetDryJanFebMarAprMayJunJulAugSepOctNovDecWet Start+1 daysWet End−1 days20°22°24°26°28°30°
Temp
25.8°C
+1.2 vs base
Precipitation
461mm
-1,612 vs base
Playback
8×
Mode
Presets

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

Monthly TemperatureBelize

All years since 19432024 (Warmest)1943 (Coldest)2026 (Current Year)Provisional

Latest month is provisional and may be revised by the data provider in the next update cycle.

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 – Belize

Latest data Aug 2026
Warmest year
2024
26.6°C
Coldest year
1943
23.6°C
2026 so far
#22/87
25.8°C

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

Shifting Seasons

Wet / dry seasonsKöppen Am · Tropical

Belize doesn't have a warm/cold cycle - its monthly temperature range is only 4.3°C across the year - but it does have a strong wet/dry cycle (the wettest month gets 5× as much rain as the driest). So we track how the wet season has shifted instead.

Shifting wet season
2 days Shorter
Wet Season
1891–1920 Baseline: 11 Jul → 18 Nov · 130 days
2016–2025 Now: 12 Jul → 17 Nov · 128 days
J
F
M
A
M
J
J
A
S
O
N
D
Onset 1 day LaterEnd 1 day Earlier
-5.7% annual rain
baseline yr·recent yr·ring = global temp anomaly
Wet-season onset
11 Jul12 Jul
1 day Later
When 25% of annual rain has fallen
Wet-season end
18 Nov17 Nov
1 day Earlier
When 75% of annual rain has fallen
Peak-rain month
JunJun
unchanged
Wet months: 66

Monthly precipitation climatology. A “wet month” exceeds the baseline monthly mean (dashed gold line). Biggest month-to-month shift: Nov (+81 mm, +43%).

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

Emissions & Energy

Explore

Explore Climate Data

Data Sources

Data Sources for Belize

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 Belize changing?

Belize 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 Belize?

Belize has a tropical climate (Köppen Am: Tropical monsoon), with only modest temperature variation through the year, but a pronounced wet and dry season. May is typically the warmest month, averaging 28.2°C, while January is the coldest at 23.5°C. Annual precipitation averages around 2057mm, concentrated mostly in the wet season.

Where does the climate data for Belize come from?

Climate data for Belize 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 Belize climate data cover?

The Belize climate profile covers Belize City, San Ignacio, Belmopan, Orange Walk and surrounding areas. Temperature, rainfall and emissions data for Belize

How often is the Belize climate update refreshed?

The Belize 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 Belize 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 Belize 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.