March weather forecastSiminiout, French Guiana
March
Weather in March
The first month of the spring, March, is still a warm month in Siminiout, French Guiana, with an average temperature ranging between min 22.2°C (72°F) and max 28.8°C (83.8°F).Temperature
The average high-temperature during March registers at a still moderately hot 28.8°C (83.8°F), maintaining a close resemblance to the previous month. During March, Siminiout observes a consistent average nighttime temperature of 22.2°C (72°F).Heat index
The heat index value during March is appraised at a torrid 36°C (96.8°F). Ensure extra safety measures, heat exhaustion and heat cramps are likely. Continuous activity might result in heatstroke.From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', measures the perceived warmth when incorporating the humidity present in the air. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are especially vital to children. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
Humans rely on perspiration as a cooling mechanism, wherein the evaporating sweat counteracts excessive warmth. In the presence of elevated relative humidity, the evaporation rate decreases. This reduction leads to increased body heat retention compared to conditions of dry air. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.
Humidity
In March, the average relative humidity is 89%.Rainfall
In Siminiout, during March, the rain falls for 25.9 days and regularly aggregates up to 86mm (3.39") of precipitation. Throughout the year, in Siminiout, there are 270.6 rainfall days, and 1131mm (44.53") of precipitation is accumulated.Daylight
The average length of the day in March is 12h and 6min.On the first day of March in Siminiout, sunrise is at 06:41 and sunset at 18:45. On the last day of the month, sunrise is at 06:30 and sunset at 18:39 -03.
Sunshine
In Siminiout, the average sunshine in March is 4.6h.UV index
The months with the lowest UV index in Siminiout are January through July, November and December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for average individuals.Note: A maximum high UV index of 6 in March translates into the following recommendations:
Fend off overexposure. Sun protection is vital. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in March
Siminiout, French Guiana
- Average high temperature in March: 28.8°C
The warmest month (with the highest average high temperature) is October (34.3°C).
The month with the lowest average high temperature is February (27.9°C).
- Average low temperature in March: 22.2°C
The month with the highest average low temperature is April (22.4°C).
The coldest month (with the lowest average low temperature) is July (21.3°C).
Average pressure in March
Siminiout, French Guiana
- Average pressure in March: 1011.8mbar
The month with the highest atmospheric pressure is July (1013.2mbar).
The month with the lowest atmospheric pressure is November (1009.8mbar).
Average wind speed in March
Siminiout, French Guiana
- Average wind speed in March: 5.8km/h
The windiest month (with the highest average wind speed) is October (6.1km/h).
The calmest month (with the lowest average wind speed) is June (4.2km/h).
Average humidity in March
Siminiout, French Guiana
- Average humidity in March: 89%
The month with the highest relative humidity is May (91%).
The month with the lowest relative humidity is October (75%).
Average rainfall in March
Siminiout, French Guiana
- Average rainfall in March: 86mm
The wettest month (with the highest rainfall) is May (195mm).
The driest month (with the least rainfall) is September (21mm).
Average rainfall days in March
Siminiout, French Guiana
- Average rainfall days in March: 25.9 days
The month with the highest number of rainy days is May (28.9 days).
The month with the least rainy days is October (12 days).
Average daylight in March /
Average sunshine in March
Siminiout, French Guiana
- Average daylight in March: 12h and 6min
The month with the longest days is June (Average daylight: 12h and 18min).
The month with the shortest days is December (Average daylight: 12h and 0min).
- Average sunshine in March: 4h and 36min
The month with the most sunshine is September (Average sunshine: 8h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 0min).
Average sunshine days in March
Siminiout, French Guiana
- Average sunshine days in March: 4.2 days
The month with the most sunshine days is October (16.3 days).
The month with the least sunshine days is May (1.8 days).
Average UV index in March
Siminiout, French Guiana
- Average UV index in March: 6
The months with the highest UV index are August, September and October (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, November and December (UV index 6).
Average cloud cover in March
Siminiout, French Guiana
- Average cloud cover in March: 75
The month with the most cloud cover is February (Cloud cover 78).
The month with the least cloud cover is October (Cloud cover 46).
Average visibility in March
Siminiout, French Guiana
- Average visibility in March: 6km
The months with the highest visibility are September and October (7km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, November and December (6km).
