India is typically described as having three main seasons, based on its climatic patterns influenced by the monsoon and geography. These are:
1. **Summer (March to May)**: Hot and dry, especially in northern and central India, with temperatures often exceeding 40°C (104°F) in many regions. Coastal areas are humid, while inland areas are drier. Pre-monsoon showers may occur in some places.
2. **Monsoon (June to September)**: The rainy season, driven by the southwest monsoon, brings heavy rainfall across most of India. The rains start in southern India around June and spread northward, cooling temperatures but increasing humidity. Rainfall varies, with places like Meghalaya receiving some of the world’s highest precipitation.
3. **Winter (October to February)**: Cooler and dry, with temperatures dropping significantly in northern India (sometimes below 5°C/41°F in places like Delhi or Rajasthan at night). Southern India remains milder, with pleasant weather. Fog and mist are common in the north.
Some regional variations exist, and in certain contexts, people might refer to additional sub-seasons (like post-monsoon or pre-monsoon), but these three are the primary ones recognized across India. If you want specifics on a region or weather data, let me know!
India and Sri Lanka, being close geographically, share tropical climates influenced by the monsoon, but their weather patterns differ due to size, topography, and location. Below is a comparison of the three main seasons in India with Sri Lanka’s weather patterns:
### India’s Seasons
1. **Summer (March to May)**:
- **Temperature**: Hot, often 35–45°C (95–113°F) in northern/central India; humid in coastal areas.
- **Conditions**: Dry and scorching inland, humid along coasts. Pre-monsoon showers in some areas (e.g., Kerala).
- **Regional Variation**: Northwest sees extreme heat; southern India is milder but humid.
2. **Monsoon (June to September)**:
- **Temperature**: 25–35°C (77–95°F), cooler due to rain.
- **Conditions**: Southwest monsoon brings heavy rain across most of India, starting in Kerala and moving north. Rainfall varies (e.g., 2000–4000 mm in Meghalaya, less in Rajasthan).
- **Regional Variation**: Western Ghats and northeast get intense rain; northwest remains drier.
3. **Winter (October to February)**:
- **Temperature**: 10–25°C (50–77°F) in north; colder in highlands (near 0°C in Kashmir). South stays mild (20–30°C).
- **Conditions**: Dry, with clear skies. Fog and mist common in northern plains.
- **Regional Variation**: North experiences cold waves; south and coastal areas remain pleasant.
### Sri Lanka’s Seasons
Sri Lanka, being a smaller island nation, has a more uniform tropical climate with two main monsoon seasons and inter-monsoonal periods, often described as:
1. **Southwest Monsoon (Yala, May to September)**:
- **Temperature**: 27–32°C (80–90°F), humid.
- **Conditions**: Heavy rainfall in the southwest (Colombo, Galle, hill country), with 2000–5000 mm in wet zones. The northern and eastern regions (Jaffna, Trincomalee) are drier, often sunny.
- **Comparison to India**: Aligns with India’s monsoon but is more localized. Sri Lanka’s wet zone gets rain comparable to India’s Western Ghats, while its dry zone resembles India’s less rainy regions like Tamil Nadu.
2. **Northeast Monsoon (Maha, November to February)**:
- **Temperature**: 22–30°C (72–86°F), cooler in hill areas like Nuwara Eliya (10–20°C).
- **Conditions**: Heavy rain in the northeast (Trincomalee, Batticaloa), while the southwest is relatively dry and pleasant. Rainfall in wet zones can reach 2000–3000 mm.
- **Comparison to India**: Coincides with India’s winter, but Sri Lanka’s northeast monsoon brings rain to its east coast, unlike India’s largely dry winter. Sri Lanka’s southwest during this period is similar to South India’s mild, pleasant winter.
3. **Inter-Monsoonal Periods** (March–April, October):
- **Temperature**: 28–35°C (82–95°F), hot and humid.
- **Conditions**: First inter-monsoon (March–April) is hot with occasional showers; second (October) brings widespread rain and thunderstorms across the island, especially in the southwest and central highlands.
- **Comparison to India**: The first inter-monsoon resembles India’s summer, with rising heat and humidity. October’s rains are similar to India’s retreating monsoon in southern states like Tamil Nadu.
### Key Differences
- **Seasonal Structure**: India has three distinct seasons (summer, monsoon, winter), while Sri Lanka’s climate revolves around two monsoons and inter-monsoonal periods, with less emphasis on a distinct “winter” due to its equatorial location.
- **Temperature Range**: India has greater temperature variation (near-freezing in northern winters to 45°C in summer), while Sri Lanka’s temperatures are more stable (22–35°C) due to its island geography and proximity to the equator.
- **Rainfall Patterns**: India’s monsoon is more uniform across the country (June–September), while Sri Lanka’s monsoons affect different regions at different times (southwest vs. northeast). Sri Lanka’s wet zones receive heavier, more consistent rain than most of India, except for India’s northeast.
- **Regional Variation**: India’s vast size leads to diverse climates (deserts in Rajasthan, alpine in Himalayas). Sri Lanka, being smaller, has less variation but still distinct wet (southwest, central) and dry (north, east) zones.
- **Winter Contrast**: India’s northern winter is cold and dry, while Sri Lanka’s equivalent period (northeast monsoon) is rainy in the east and pleasant in the southwest, with no true cold season.
### Summary
India’s three-season cycle (summer, monsoon, winter) contrasts with Sri Lanka’s monsoon-driven climate, where the southwest and northeast monsoons alternate wet and dry periods across regions, with inter-monsoonal showers. Sri Lanka’s smaller size and equatorial position result in less temperature variation and more consistent humidity compared to India’s diverse climates. If you’d like specific data (e.g., rainfall in Colombo vs. Delhi) or regional comparisons, let me know!