Haiti Climate – July 2026 Update
Top 5 Cities: Port-au-Prince, Cap-Haïtien, Delmas, Port-de-Paix, and Carrefour
Summary
Haiti has recorded its 1st warmest May-July period on record, with average temperatures reaching 27.36°C at 1.7°C above the 1961-1990 baseline. July registered as the 2nd warmest on record at 27.96°C. The relentless heat, coupled with persistent rainfall deficits, has intensified moisture stress for staple crops across major growing regions. Meanwhile, a moderate El Niño in the Pacific is forecast to peak at Very Strong in Sep-Nov with a 93% probability, with elevated temperatures and dry conditions expected to linger over the coming months.
This month in numbers
July 2026 delivered an average temperature of 27.96°C for Haiti, standing 1.7°C above the 1961-1990 baseline and ranking as the 2nd warmest on record for the month, behind only 2023. The headline highlight comes from the three-month window: May-July 2026 averaged 27.36°C (+1.7°C anomaly), making it the 1st warmest May-July season ever recorded in the country. This regional warmth mirrors a scorching global land pattern, where July ranked 3rd warmest overall at 15.8°C (+1.6°C anomaly) and the May-July global land average ranked 2nd highest on record.
What changed
The early months of 2026 were relatively moderate, with February through April running between 0.6°C and 0.9°C above baseline before heat sharply escalated in late spring. May jump-started the extreme trajectory with a +1.8°C anomaly at 26.66°C, followed by June at 27.45°C (+1.6°C) and July at 27.96°C (+1.7°C). This three-month heat spike builds on an aggressive long-term warming trend of +1.09°C in Haiti. The country recorded its warmest year on record in 2024 at 26.1°C, while 2025 followed closely as the 3rd warmest full year at 25.98°C, underlining a clear multi-year shift toward unprecedented thermal stress.
What’s driving change?
A primary factor in the current climate setup is ENSO, with a moderate El Niño currently active in the tropical Pacific at an anomaly of +0.98°C on NOAA's Relative Niño Index (tracked at ENSO). Historically, El Niño suppresses rainfall across the Caribbean during summer and autumn, a tendency with around 60% historical reliability that often brings reduced cyclone activity alongside drier conditions. In Haiti, persistent rainfall deficits through May and June triggered , where parched soils can no longer cool the surface through evaporation, transferring solar radiation directly into atmospheric heating and driving exceptional daytime heat.
Looking ahead
Seasonal outlooks suggest that high temperatures and reduced precipitation will continue across Haiti through late autumn, with the active moderate El Niño forecast to peak at Very Strong in Sep-Nov with a 93% probability.
Generated by Gemini from climate data and web sources
At a Glance
Temperature – Average
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 – Haiti
Köppen Am · TropicalHaiti has a tropical climate (Köppen Am: Tropical monsoon), with only modest temperature variation through the year, but a pronounced wet and dry season. August is typically the warmest month, averaging 27.4°C, while January is the coldest at 23.9°C. Annual precipitation averages around 1411mm, concentrated mostly in the wet season.
Monthly climate normals (2016–2025) - 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 Timeline – Haiti
Precipitation, Sunshine, Frost and Snow are converted to standard deviations from their own average so they can share an axis with Temperature.
Data: Our World in Data / NOAA (precipitation: GPCC (DWD); frost: World Bank CCKP).
Heatwave Days – Haiti
Warm Spell Duration Index (WSDI) - days in a 6+ day run above the local 90th-percentile temperature for that time of year.
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 – Haiti
Data: Our World in Data / NOAA (precipitation: GPCC (DWD); frost: World Bank CCKP).
Monthly Temperature – Haiti
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 – Haiti
Our World in Data / NOAA (precipitation: GPCC (DWD); frost: World Bank CCKP) - Anomalies vs 1901-2000 mean
Shifting Seasons
Wet / dry seasonsKöppen Af · TropicalHaiti doesn't have a warm/cold cycle - its monthly temperature range is only 3.5°C across the year - but it does have a strong wet/dry cycle (the wettest month gets 3× as much rain as the driest). So we track how the wet season has shifted instead.
Monthly precipitation climatology. A “wet month” exceeds the baseline monthly mean (dashed gold line). Biggest month-to-month shift: May (-70 mm, -32%).
Data: Our World in Data / NOAA (precipitation: GPCC (DWD); frost: World Bank CCKP).
Climate Systems
Loading ENSO tracker…
Emissions & Energy
Explore
Explore Climate Data
Data Sources
Data Sources for Haiti
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.
Country-level temperature anomaly, sourced from Copernicus ERA5 and Hadley HadCRUT5.
Annual country and global CO₂ emissions, from the Global Carbon Project.
Monthly rainfall - Global Precipitation Climatology Centre (DWD) preferred, World Bank CCKP/CRU TS fallback where GPCC lacks direct coverage.
Frost Days and Heatwave Days (Warm Spell Duration Index), ERA5-derived. World Bank Climate Change Knowledge Portal.
Monthly snow water-equivalent, Global Precipitation Climatology Centre (DWD).
FAQs
FAQs
How is the climate in Haiti changing?
Haiti 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 Haiti?
Haiti has a tropical climate (Köppen Am: Tropical monsoon), with only modest temperature variation through the year, but a pronounced wet and dry season. August is typically the warmest month, averaging 27.4°C, while January is the coldest at 23.9°C. Annual precipitation averages around 1411mm, concentrated mostly in the wet season.
Where does the climate data for Haiti come from?
Climate data for Haiti 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 Haiti climate data cover?
The Haiti climate profile covers Port-au-Prince, Cap-Haïtien, Delmas, Port-de-Paix and surrounding areas. Temperature, rainfall and emissions data for Haiti
How often is the Haiti climate update refreshed?
The Haiti 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 Haiti 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 Haiti 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.