Climate and monthly weather forecastRajbiraj, Nepal

The climate of Rajbiraj

Rajbiraj, nestled in Nepal, sits within the Köppen climate classification of Cwa, better known as a humid subtropical habitat with a dried out winter. Centering around the entirety of a year, this locale experiences a potpourri of weather patterns, with climate elements witnessing significant shifts as the seasons transition.

Revolving through the designated periods of a year, temperatures in Rajbiraj exhibit substantial diversity. High temperatures, on an average scale, bounce from a snug 23.7°C (74.7°F) in January up to a burning 38.3°C (100.9°F) during the May - June timeframe before retreating to a more manageable 25.1°C (77.2°F) come December. Similar to this dynamic, low temperatures follow the pattern from a frosty 12.4°C (54.3°F) in the first month of the year up to an intolerable 28°C (82.4°F) in June, with a gradual return to a cold 14.8°C (58.6°F) as the year draws to a close.

Rainfall in Rajbiraj tends to vacillate between extremes of a trifling 5mm (0.2") in January to a constant downpour totaling 246mm (9.69") in the midst of July. Corresponding to precipitation, the number of rainfall days shows a sharp rise from just below 3 in the first few months of the year, culminating in over 25 days filled with rain in July before leveling off to approximately 1.5 days in November and December.

Strikingly, the distinctive weather patterns depictured through humidity are revealing. Starting from a relatively moderate 54% in the January, it vaults up to an intense 73% in the July-September period and then mellows down steadily to round off the year at 51%.

The best time to visit Rajbiraj

For those wanting to explore Rajbiraj at its climatic best, the period spanning from late October through February offers the most agreeable conditions. Here, the temperatures rest within a mild range of 31.3°C (88.3°F) to 23.7°C (74.7°F) (high temperatures) and 22.2°C (72°F) to 12.4°C (54.3°F) (low temperatures), while rainfall tends to be the lowest, measuring between 2mm (0.08") and 31mm (1.22") with sparse rainy days.

The worst time to visit Rajbiraj

Contrastingly, the tourists wishing to evade extreme weather conditions should avoid the period from June through September, when the temperatures are the highest, soaring to a sweltering 38.3°C (100.9°F), combined with the highest rainfall figures, skyrocketing up to 246mm (9.69"), with relative humidity often crossing the 70% mark, making it highly uncomfortable for outdoor explorations.

Spring weather in Rajbiraj

Spring, extending from March to May in Rajbiraj, unfolds with a progressive rise in temperature. March starts at a fairly pleasant 33.8°C (92.8°F), but by May, the mercury escalates to a scorching 38.3°C (100.9°F). Rainfall remains negligible during this span, with March witnessing 6mm (0.24"), building up to 17mm (0.67") by May end.

Summer weather in Rajbiraj

Rajbiraj, under the summer's grip from June to September, encounters high temperatures, peaking at an oppressive 38.3°C (100.9°F) in June, before gradually falling to 34.3°C (93.7°F) by September. The city also experiences its heftiest rainfall during this period, reaching up to 246mm (9.69") in July.

Autumn weather in Rajbiraj

During Autumn, kicking off from October through November, Rajbiraj weather becomes more regulated. High temperatures decline from 31.3°C (88.3°F) in October to a more tolerable 28.8°C (83.8°F) by November. Rainfall also dwindles significantly, from 31mm (1.22") in October to a mere 2mm (0.08") by November.

Winter weather in Rajbiraj

Winters in Rajbiraj, nestled within December and January, experiences a dip in temperatures. December observes a high of 25.1°C (77.2°F) and drops to 23.7°C (74.7°F) in January. Furthermore, rainfall touches the annual minimum, with just 2mm (0.08") recorded each for December and January.

Weather in January

The start of the year welcomes a comforting crispness to the city of Rajbiraj with a mildly chilly climate, setting the tone for the winter season. The mornings reveal a blanket of dew brought on by the relatively low humidity of 54%, making it among the drier periods of the entire year. Weather in January »

Weather in February

Altering subtly from January, February introduces marginally warmer temperatures. A perceptible increase in precipitation is observed as rainfall jumps from 5mm (0.2") in January to 12mm (0.47"), indicating the beginning of a wet transition for the seasons. Weather in February »

Weather in March

March signifies an onset of spring, paving the way for warmer temperatures. This month witnesses a surge in mercury levels with the highest temperature vaulting to an average of 33.8°C (92.8°F), marking the beginning of a steady climb in heat. Weather in March »

Weather in April

Rajbiraj beckons the peak of spring with April, a month characterized by pleasantly higher temperatures and increasing rainfall. This month sees the temperature range extending from a balmy 25°C (77°F) at night to an average high of 38.1°C (100.6°F) during the day. Weather in April »

Weather in May

In May, the atmosphere swings towards an increasingly warm and humid climate. With the maximum temperature being 38.3°C (100.9°F), the heat is offset by a generous outpour of 53mm (2.09") rainfall thereby maintaining a blend of sun and showers. Weather in May »

Weather in June

June ushers in summer with a slightly lowered temperature amid an increase in precipitation. The highest observed temperature marginally drops to 37.6°C (99.7°F) as the most substantial annual rainfall of 105mm (4.13") takes the center stage. Weather in June »

Weather in July

July in Rajbiraj is a true display of monsoon's might, with torrential downpours dominating the weather dynamics. The city receives a whopping 246mm (9.69") of rainfall, marking it as the wettest month of the year. Cooler day temperatures dipping to 34.3°C (93.7°F), coupled with extended daylight hours, balance the excessive rainfall and present a refreshing monsoon experience. Weather in July »

Weather in August

August continues the monsoon tempo set by July, with rainfall remaining considerably high at 167mm (6.57"). Interestingly, the relative humidity sustains at a persistent 72%, contributing to a generally humid climate akin to the previous month. Weather in August »

Weather in September

September marks the decline of monsoon and ushers in a transition towards the drier part of the year. The substantial decrease in the amount of rainfall to 141mm (5.55"), combined with longer sunshine hours, signals the withdrawal of monsoon season. Weather in September »

Weather in October

October in Rajbiraj serves as a period of transition from the heavy monsoon season to a cooler and drier autumn. Notably, the rainfall drops down drastically to 31mm (1.22"), marking the onset of the drier seasons. A drop in the recorded highest temperature is registered at 31.3°C (88.3°F), giving locals and tourists a respite from the retreating monsoon heat. Weather in October »

Weather in November

November revels in the charm of a subtropical autumn with plummeting temperatures and scant rainfall. A steep drop in the highest temperature to 28.8°C (83.8°F) aligns with a sharp decrease in rainfall, resulting in merely 2mm (0.08") throughout the month. Weather in November »

Weather in December

The city of Rajbiraj welcomes the year-end with a mild winter, marked by considerably cooler daytime temperatures and crisp mornings. With the highest temperature dipping further to 25.1°C (77.2°F), the weather patterns strongly indicate the onset of winter. Weather in December »