FORECASTS / REPORTING / WORLD WEATHERIndependent editorial review · Asia/Tbilisi

Cayenne Weather Now, French Guiana

Current model conditions, today's hourly weather and a seven-day forecast inCayenne's local time.

Use Fahrenheit

Local city time: · America/Cayenne

Weather todayHourly forecastTomorrow's forecastNext 24 hours7-day forecastData sources
Current model estimate · 2026-10-21

Cayenne temperature today

30.5°C

Partly cloudy · Feels like 34.8°C

Valid at
Modelled conditions, not a station observation.
Remaining sample high30.5°C
Remaining sample low28.2°C
Wind23.0 km/h
Wind gustsNot available
Rain probabilityNot available
Precipitation amountNot available

Hourly forecast

Next available hours · America/Cayenne. Repeated local hours include their timezone offset.

Temperature°C · America/Cayenne
2326303321 Oct, 1322 Oct, 0422 Oct, 1923 Oct, 11
Precipitation amountmm · America/Cayenne
0.00.30.71.021 Oct, 1322 Oct, 0422 Oct, 1923 Oct, 11
View all 48 hourly values
47 available hourly values. Missing values are never replaced by zero.
City-local timeTemperatureRain chanceAmountWindGustsHumidity
30.4°CNot available0.0 mm22.7 km/hNot available64.4%
30.3°CNot available0.0 mm24.1 km/hNot available65.4%
30.2°CNot available0.0 mm24.8 km/hNot available66.5%
29.6°CNot available0.0 mm26.3 km/hNot available69.9%
29.0°CNot available0.0 mm25.2 km/hNot available73.6%
28.4°CNot available0.0 mm25.9 km/hNot available76.4%
28.2°CNot available0.0 mm26.3 km/hNot available76.6%
28.2°CNot available0.0 mm27.0 km/hNot available77.2%
28.2°CNot available0.0 mm27.4 km/hNot available76.1%
28.3°CNot available0.0 mm28.8 km/hNot available75.6%
28.2°CNot available0.0 mm27.4 km/hNot available76%
28.0°CNot available0.0 mm25.6 km/hNot available76.7%
27.8°CNot available0.0 mm25.6 km/hNot available77.7%
27.4°CNot available0.0 mm24.5 km/hNot available79.8%
27.1°CNot available0.1 mm23.0 km/hNot available81%
26.9°CNot available0.2 mm20.9 km/hNot available82.4%
26.3°CNot available0.1 mm19.1 km/hNot available86.1%
26.5°CNot available0.0 mm16.9 km/hNot available85.5%
26.7°CNot available0.2 mm16.2 km/hNot available85.2%
27.9°CNot available0.3 mm15.8 km/hNot available79.1%
28.7°CNot available0.2 mm16.6 km/hNot available75%
29.4°CNot available0.0 mm14.0 km/hNot available71.5%
30.2°CNot available0.0 mm20.5 km/hNot available68.4%
30.0°CNot available0.0 mm20.9 km/hNot available70.6%
29.9°CNot available0.0 mm21.2 km/hNot available72%
29.6°CNot available0.0 mm23.4 km/hNot available73.2%
29.6°CNot available0.0 mm24.1 km/hNot available73.2%
29.2°CNot available0.0 mm24.8 km/hNot available74.1%
28.7°CNot available0.1 mm23.8 km/hNot available76.4%
28.1°CNot available0.0 mm22.7 km/hNot available79.2%
27.8°CNot available0.0 mm22.3 km/hNot available81.3%
27.9°CNot available0.0 mm22.0 km/hNot available80.5%
28.1°CNot available0.0 mm23.0 km/hNot available77.7%
28.0°CNot available0.0 mm22.3 km/hNot available77.8%
27.9°CNot available0.0 mm23.0 km/hNot available78.2%
27.8°CNot available0.0 mm23.8 km/hNot available78.5%
27.3°CNot available0.0 mm23.4 km/hNot available81.4%
27.0°CNot available0.1 mm20.5 km/hNot available82.5%
27.0°CNot available0.0 mm17.6 km/hNot available81.4%
26.8°CNot available0.6 mm16.2 km/hNot available82.4%
25.4°CNot available0.2 mm20.2 km/hNot available90.7%
25.4°CNot available0.0 mm11.5 km/hNot available91.4%
25.6°CNot available0.0 mm12.2 km/hNot available90.4%
26.8°CNot available0.0 mm13.7 km/hNot available82.5%
28.7°CNot available0.0 mm15.5 km/hNot available72.3%
30.4°CNot available0.0 mm12.6 km/hNot available64.8%
30.5°CNot available0.0 mm11.9 km/hNot available67.4%

These figures compare available forecast samples, not full-day extrema. Today's earlier hours are not included.

Tomorrow's forecast · 2026-10-22

Forecast high: 30.2°C · Forecast low: 26.3°C

Tomorrow's forecast high is 0.3°C lower than today's forecast high. This compares forecasts from one snapshot, not observed records.

Planning window

Next 24 hours at a glance

America/Cayenne

Calculated from 24 validated hourly model values in this snapshot. These are forecast signals, not observations or weather warnings.

Temperature span26.3°C to 30.4°CLowest and highest hourly estimate
Largest hourly precipitation amount0.3 mmModel hour 22 Oct 2026, 08:00 GMT-3
Strongest wind signal28.8 km/hWind at 21 Oct 2026, 22:00 GMT-3
Humidity range64.4% to 86.1%Across available hourly values

7-day forecast

Ranges of available forecast samples by city-local day; today covers remaining hours. These are not official daily extrema. Missing totals and probabilities are not estimated.
Local dateLow / HighRain chanceAmountSunriseSunsetUV index
2026-10-21 · Today28.2°C / 30.5°CNot availableNot availableNot availableNot availableNot available
2026-10-22 · Tomorrow26.3°C / 30.2°CNot availableNot availableNot availableNot availableNot available
2026-10-2325.4°C / 30.5°CNot availableNot availableNot availableNot availableNot available
2026-10-2426.7°C / 30.4°CNot availableNot availableNot availableNot availableNot available
2026-10-2526.9°C / 30.1°CNot availableNot availableNot availableNot availableNot available
2026-10-2627.3°C / 30.4°CNot availableNot availableNot availableNot availableNot available
2026-10-2727.1°C / 29.5°CNot availableNot availableNot availableNot availableNot available

Daily low/high values are ranges of available forecast samples, not official daily extrema. Today covers the remaining forecast hours.

Missing precipitation probabilities and local-day totals are unavailable, never inferred from market prices.

Provider time is the product update timestamp, not the underlying model run.

Data sources & methodology

Weather data from MET Norway (CC BY 4.0). Wind units converted; local-day sampled temperature ranges calculated by this site.MET Norway · Data licence · Location: GeoNames

Product: MET Norway Locationforecast — global numerical model forecast. Provider model issue time: 21 Oct 2026, 10:19 GMT-3. Retrieved: .

Requested coordinates: 4.9381, -52.33455. Returned model grid: 4.9381, -52.3345. Forecasts can change; they are not official warnings. Warning feed: not connected.

How validation, units and delayed updates work →

Related reporting

No reviewed reporting for this city has been published yet.

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