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 Celsius

Local city time: · America/Cayenne

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

Cayenne temperature today

86.9°F

Partly cloudy · Feels like 94.6°F

Valid at
Modelled conditions, not a station observation.
Remaining sample high86.9°F
Remaining sample low82.8°F
Wind14.3 mph
Wind gustsNot available
Rain probabilityNot available
Precipitation amountNot available

Hourly forecast

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

Temperature°F · America/Cayenne
7580848921 Oct, 1422 Oct, 0522 Oct, 2023 Oct, 11
Precipitation amountin · America/Cayenne
0.00.30.71.021 Oct, 1422 Oct, 0522 Oct, 2023 Oct, 11
View all 48 hourly values
46 available hourly values. Missing values are never replaced by zero.
City-local timeTemperatureRain chanceAmountWindGustsHumidity
86.5°FNot available0.00 in15.0 mphNot available65.4%
86.4°FNot available0.00 in15.4 mphNot available66.5%
85.3°FNot available0.00 in16.3 mphNot available69.9%
84.2°FNot available0.00 in15.7 mphNot available73.6%
83.1°FNot available0.00 in16.1 mphNot available76.4%
82.8°FNot available0.00 in16.3 mphNot available76.6%
82.8°FNot available0.00 in16.8 mphNot available77.2%
82.8°FNot available0.00 in17.0 mphNot available76.1%
82.9°FNot available0.00 in17.9 mphNot available75.6%
82.8°FNot available0.00 in17.0 mphNot available76%
82.4°FNot available0.00 in15.9 mphNot available76.7%
82.0°FNot available0.00 in15.9 mphNot available77.7%
81.3°FNot available0.00 in15.2 mphNot available79.8%
80.8°FNot available0.00 in14.3 mphNot available81%
80.4°FNot available0.01 in13.0 mphNot available82.4%
79.3°FNot available0.00 in11.9 mphNot available86.1%
79.7°FNot available0.00 in10.5 mphNot available85.5%
80.1°FNot available0.01 in10.1 mphNot available85.2%
82.2°FNot available0.01 in9.8 mphNot available79.1%
83.7°FNot available0.01 in10.3 mphNot available75%
84.9°FNot available0.00 in8.7 mphNot available71.5%
86.4°FNot available0.00 in12.8 mphNot available68.4%
86.0°FNot available0.00 in13.0 mphNot available70.6%
85.8°FNot available0.00 in13.2 mphNot available72%
85.3°FNot available0.00 in14.5 mphNot available73.2%
85.3°FNot available0.00 in15.0 mphNot available73.2%
84.6°FNot available0.00 in15.4 mphNot available74.1%
83.7°FNot available0.00 in14.8 mphNot available76.4%
82.6°FNot available0.00 in14.1 mphNot available79.2%
82.0°FNot available0.00 in13.9 mphNot available81.3%
82.2°FNot available0.00 in13.6 mphNot available80.5%
82.6°FNot available0.00 in14.3 mphNot available77.7%
82.4°FNot available0.00 in13.9 mphNot available77.8%
82.2°FNot available0.00 in14.3 mphNot available78.2%
82.0°FNot available0.00 in14.8 mphNot available78.5%
81.1°FNot available0.00 in14.5 mphNot available81.4%
80.6°FNot available0.00 in12.8 mphNot available82.5%
80.6°FNot available0.00 in11.0 mphNot available81.4%
80.2°FNot available0.02 in10.1 mphNot available82.4%
77.7°FNot available0.01 in12.5 mphNot available90.7%
77.7°FNot available0.00 in7.2 mphNot available91.4%
78.1°FNot available0.00 in7.6 mphNot available90.4%
80.2°FNot available0.00 in8.5 mphNot available82.5%
83.7°FNot available0.00 in9.6 mphNot available72.3%
86.7°FNot available0.00 in7.8 mphNot available64.8%
86.9°FNot available0.00 in7.4 mphNot 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: 86.4°F · Forecast low: 79.3°F

Tomorrow's forecast high is 0.5°F 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 span79.3°F to 86.5°FLowest and highest hourly estimate
Largest hourly precipitation amount0.01 inModel hour 22 Oct 2026, 08:00 GMT-3
Strongest wind signal17.9 mphWind at 21 Oct 2026, 22:00 GMT-3
Humidity range65.4% 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 · Today82.8°F / 86.9°FNot availableNot availableNot availableNot availableNot available
2026-10-22 · Tomorrow79.3°F / 86.4°FNot availableNot availableNot availableNot availableNot available
2026-10-2377.7°F / 86.9°FNot availableNot availableNot availableNot availableNot available
2026-10-2480.1°F / 86.7°FNot availableNot availableNot availableNot availableNot available
2026-10-2580.4°F / 86.2°FNot availableNot availableNot availableNot availableNot available
2026-10-2681.1°F / 86.7°FNot availableNot availableNot availableNot availableNot available
2026-10-2780.8°F / 85.1°FNot 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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