Riyan Temperature by Month
Riyan in Yemen sees moderate seasonal temperature shifts, with daytime highs between 27°C (81°F) in January and 35°C (95°F) in June, averaging 31°C (88°F) annually. Explore the full monthly breakdown below.
Riyan Monthly Temperatures
Riyan sees moderate fluctuations in temperatures, making each season distinct yet not extreme. Nights are considerably cooler, with lows ranging from 29°C (84°F) in June to 21°C (70°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Riyan by month:
From around 4 AM to 6 AM temperatures are at their lowest; by 3 PM they've climbed to their daily peak.
The chart below shows the average temperature throughout the year:
Historical Riyan Temperatures: 1983-2026
Browse day-by-day temperature records for Riyan spanning 44 years. Select any month and year to see actual high and low temperatures recorded on each day.
Temperature: Riyan vs Yemen
The map below shows the annual temperature across Yemen. You can also select individual months if you want to compare a specific time of year.
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Riyan vs World: Temperature Compared
Riyan's average annual maximum temperature is 31°C (88°F). To put that in context, here's how it compares to a few well-known destinations:
Seville, Spain averages 23°C (73°F) a year — one of the warmer cities in Western Europe, with long hot summers.
Toronto, Canada averages 13°C (55°F) annually, with cold snowy winters balanced by genuinely warm summers.
Shanghai, China averages 21°C (70°F) a year, with warm summers, mild winters, and a noticeable spring and autumn.
Melbourne, Australia averages 20°C (68°F) annually — known for unpredictable weather, with four seasons sometimes happening in one day.
What Does the Temperature Feel Like in Riyan?
Temperature alone doesn't tell the whole story — humidity plays a big role in how warm or cold it actually feels. High humidity in summer makes the heat feel more intense, particularly once temperatures climb above 25°C. In winter, the same humidity can make cold air feel sharper than the thermometer suggests.
In Riyan, January is the coolest month, with average highs of 27°C (81°F) and humidity around 71% — considered high. In June, the warmest month, temperatures average 35°C (95°F) with 77% humidity — conditions that feel high. For a full picture, see our humidity page.
Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.
The readings come from a range of sources — land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.
Whether a city sits on the coast or deep inland makes a significant difference to its climate. Coastal areas tend to have more stable temperatures year-round — large bodies of water absorb heat slowly in summer and release it gradually in winter, keeping extremes in check. Cities far from the sea don't benefit from that buffer, which is why continental climates tend to have hotter summers and colder winters than their coastal counterparts at the same latitude.
For more on Riyan's weather — including monthly rainfall, sunshine hours, and humidity — visit our Riyan climate page.
