Report Industry Investment Rating - Not mentioned in the report Core Viewpoints - The report is a meteorological analysis report on natural rubber futures. It points out that it is the end of the peak production season, and the weather conditions are generally good. However, there are still some potential impacts from climate phenomena such as La Nina and El Nino on the rubber production areas [1]. - The long - and medium - term climate dynamics show that the La Nina phenomenon has strengthened slightly month - on - month, and there is a possibility of transitioning to ENSO neutral and then to a weak El Nino phenomenon, which may increase weather disturbances in the production areas [1]. - Different natural rubber production areas around the world have different weather conditions, which will have different impacts on rubber production, including the progress of tapping, yield, and the risk of diseases and pests [1][2][3] Summary by Directory 1. This Week's Important Meteorological Warnings - **Long - and medium - term climate dynamics**: - **ENSO**: The current Nino3.4 index is - 0.8 (- 0.1), and the La Nina phenomenon has strengthened slightly month - on - month. A weak La Nina phenomenon may last from December 2025 to February 2026, transition to ENSO neutral around January - March 2026, and there is a probability of over 45% of turning into a weak El Nino phenomenon from June to August 2026, which may increase weather disturbances in the production areas [1]. - **IOD**: The DMI index is - 0.60, increasing the probability of rainfall around Indonesia [1]. - **MJO**: It is expected to be in the second phase and will develop towards the third phase, which will affect the area around Indonesia and intensify weather changes [1]. - **Production area weather**: - **China**: Yunnan has stopped tapping. The significant cooling in early January and mostly sunny weather are conducive to the complete defoliation of rubber trees. Hainan is gradually cooling, with sporadic light rain recently. Most areas in the central and eastern parts have stopped tapping, and the western and southern parts are still tapping but are expected to stop completely in mid - January [2]. - **Indochina Peninsula**: In Thailand, rainfall has significantly decreased month - on - month, and the rubber in the main planting areas may increase production in the next few weeks but will decrease and stop tapping in mid - January. Vietnam has less rain, which has little impact on tapping. Cambodia's weather is similar to Vietnam's. Myanmar has less rain, and the tapping may be postponed [3]. - **Malay Archipelago**: In Indonesia, the La Nina phenomenon and IOD have strengthened, increasing the probability of rainfall. In December, precipitation in the whole area was high, which affected production. In Malaysia, the Malay Peninsula is in the peak rainy season, and continuous rainfall still affects tapping. In the Philippines, rainfall was less in December but increased recently, and future rainfall will decrease, which is beneficial to production [5]. - **South Asia**: In India, weather disturbances have weakened month - on - month. In Sri Lanka, the flood has subsided, but there is still rain in the central and northern parts [6]. - **West Africa**: In Cote d'Ivoire, rainfall has increased significantly year - on - year in December, and attention should be paid to soil humidity changes and drought risks in the future [6]. 2. Production Area Rainfall Data Summary - The report provides the weekly precipitation data of main natural rubber production areas, including the cumulative precipitation of the current month, the year - on - year change percentage, the cumulative precipitation of last week, the weekly difference, the forecast precipitation for this week, and the forecast precipitation for the next week [7]. 3. Production Area Sudden Disaster Monitoring - **Tropical depression**: A tropical depression may form in the southwest of Indonesia, increasing rainfall in western Indonesia, but the impact is limited [10]. - **Flood disaster**: Thailand has less rain recently, and future rainfall is limited, which may increase production. The Malay Peninsula and Sumatra Island in Indonesia are in the peak rainy season, but the rainfall has decreased month - on - month, and the flood risk has decreased [11]. 4. Weather Conditions in Each Production Area - The report provides detailed weather maps and meteorological indicator tracking data for each production area, including daily precipitation distribution, monthly precipitation distribution, annual cumulative precipitation, soil humidity anomaly of each layer, temperature comparison, and average wind speed [20][40][63] Appendix - **Appendix 1: Planting Area and Yield Distribution of Main Natural Rubber Production Areas**: Global natural rubber is mainly planted in Southeast Asia, accounting for about 80%. Thailand's planting area accounts for about 1/4, and Indonesia accounts for about 1/5. In terms of yield, Thailand accounts for more than 30% of the global total, Indonesia accounts for 15%, and Cote d'Ivoire accounts for more than 10% [196]. - **Appendix 2: Phenological Period of Rubber and the Impact of Weather**: The phenological period of rubber trees includes five stages. New leaves are most sensitive to weather and natural disasters before maturity. Long - term rubber supply depends on planting area and tree - age structure, while short - term supply is more affected by weather factors. Different weather conditions have different impacts on rubber production during the tapping and non - tapping periods [205]. - **Appendix 3: Production Cycle and Potential Meteorological Risks of Main Natural Rubber Production Areas**: The global natural rubber supply has obvious seasonality. The high - yield period is from September to November, and the low - yield period is from February to March. The tapping and non - tapping times of each production area vary due to latitude differences [207].